US20050128474A1 - Method and apparatus to pre-scan and pre-treat film for improved digital film processing handling - Google Patents
Method and apparatus to pre-scan and pre-treat film for improved digital film processing handling Download PDFInfo
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- US20050128474A1 US20050128474A1 US11/002,004 US200404A US2005128474A1 US 20050128474 A1 US20050128474 A1 US 20050128474A1 US 200404 A US200404 A US 200404A US 2005128474 A1 US2005128474 A1 US 2005128474A1
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- film
- cleaning
- roller
- particle removal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
- G01N21/8916—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined for testing photographic material
Definitions
- the present invention relates generally to the field of digital film processing, and more particularly, to an apparatus and method for pre-screening and pre-treating film that is amenable to digital film processing.
- Standard color photographic negative film that is widely used in still cameras today is designed and manufactured to contain three superimposed, semi-independent color sensing layers.
- Spectral sensitivity curves for photographic negative film show the typical response of the three layers of photographic film over the visible light spectrum; assuming equal radiated power at each wavelength.
- the top layer responds primarily to light of short wavelength (blue light)
- the middle layer responds primarily to light of medium wavelength (green light)
- the bottom layer responds to light of long wavelength (red light).
- each spot on the film records the amount of blue, green and red light, or flux. Incident flux creates what is referred to as the latent image.
- the exposed film is chemically processed to produce dyes in the three layers with color densities directly proportional to the blue, green, and red spectral exposures that were recorded in the latent image.
- Yellow dye is produced in the top layer, magenta dye in the middle layer, and cyan dye in the bottom layer.
- positive photographic images may then be electronically scanned to produce a digital image.
- Image enhancement has been the subject of a large body of film processing technology.
- a common feature of all digital film processing technology is that the film to be scanned must be relatively flat during the optical scan. Furthermore, the optical scan best occurs using a relatively uniform velocity during the scan period. Small imperfections in the film, such as tearing, creases, scratches, foreign objects and fluids decrease the efficacy of the digital scan. Large imperfections make digital film processing and conventional scanning very difficult.
- the present invention relates to pre-screening and/or pre-treating film before further chemical processing and scanning.
- conventional systems do not take into consideration of the special needs of digital film processing (“DFP”) techniques and devices.
- DFP digital film processing
- the present invention can correct, to the extent possible, film imperfections prior to processing. In at least one embodiment, imperfections in the film can be identified and then corrected.
- the present invention comprises an apparatus for use in digital image processing in which the suitability of a film for DFP is determined prior to scanning.
- the apparatus for use with the invention includes, generally, a sensor for detecting one or more imperfections on the film and a microprocessor connected to the sensor that determines the amount and extent of imperfections of the film based on one or more reference readings.
- a reference sensor and a memory may be connected to the microprocessor to provide the reference readings.
- the reference sensor readings may be determined by the reference sensor and stored in the memory for use by the microprocessor.
- the reference sensor may be a reflective sensor or a sensor that reads light that traverses the film, is reflected by the film or both.
- the apparatus may also include a tape dispenser positioned to repair the film if the imperfection detected by the sensor is a breakage in the film.
- the sensor may detect abnormalities in the shape of the perforations or sprockets on the film.
- Another imperfection that may be detected, and in some embodiments corrected, is the detection of moisture on the film (or even the actual moisture level). If excessive moisture is detected, as determined in the comparison of actual and reference measurements, the film is dried until the moisture level drops below the predetermined acceptable moisture level. Film may be dried using, for example, a blower, a vacuum or even rollers that remove moisture mechanically or by capillary action.
- the microprocessor compares the amount of foreign object(s) on the film to reference levels, and if the level is above a predetermined acceptable foreign object level, the film is cleaned until the foreign object level drops below the predetermined acceptable foreign object level.
- Yet another embodiment of the present invention is a method of identifying film suitable for digital image processing that includes the steps of: exposing film to one or more light sources; detecting the light reflected from the film to measure imperfections on the film; determining if the imperfections on the film exceed reference sensor readings; and routing the film based on the sensor output depending on whether the film is suitable for digital film processing from film that is not suitable for digital film processing.
- the method may also include the steps of: determining the level of moisture in the film, detecting foreign objects on the film; and scanning for one or more broken sprockets on the film edges. Imperfections in the moisture level, the presence of foreign objects and broken sprockets will lead to rejection of the film from further digital film processing.
- the invention may also include one or more of the following film imperfection correction systems. Imperfections on the film are corrected selecting a remedial measure that corrects the imperfection, for example, where excessive moisture and foreign objects are detected they are removed. Likewise, if one or more broken sprockets are detected, they may be repaired using, e.g., a tape dispenser mechanism prior to digital film processing.
- inventions of the present invention may include always cleaning the film and then inspecting the film, or performing the cleaning and inspection steps in an iterative manner. The results of the inspection may then be reported to an operator or recorded in some manner. If the film is rejected, it can be rolled back into the canister or stored in a new canister or storage device. Moreover, the present invention may report the specific reasons why the film was rejected and identify where on the film the problems were detected.
- a particle removal member can be utilized.
- the particle removal member which can be easily and efficiently cleaned when a need for cleaning is identified.
- the particle removal member can be periodically cleaned by a cleaning system which is adapted for removing particles from the particle removal member.
- the cleaning system and the particle removal member are relatively movable so as to be selectively contactable with respect to each other.
- the cleaning system has a particle adhering surface which is operative to remove particles from the particle removal member when the cleaning system is in contact with the particle removal member.
- the particle adhering surface can comprise disposable adhesive tape and a tape transport system can be used to advance the tape across a cleaning member, such as a roller for example.
- the cleaning system can automatically move into contact with the particle removal member at predetermined times, such as detection of a passage of time or an amount of usage for example.
- FIG. 1 is a perspective view of a scanning device in accordance with the present invention
- FIG. 2 is an illustration of a digital film processing system which uses duplex film scanning in accordance with the present invention
- FIG. 3 shows a configuration of a film pre-scan apparatus in accordance with the present invention
- FIG. 4 is a flow chart of a method for pre-scanning film in accordance with the present invention.
- FIG. 5 is a schematic diagram of film cleansing system which can be used to efficiently clean film prior to digital film processing
- FIG. 6 is schematic diagram of the system of FIG. 5 , illustrating a cleaning member in the contacting position for removal of particles from the particle removal member;
- FIGS. 7 and 8 are schematic diagrams showing an indexing system for automatic movement of the cleaning member of FIG. 6 between a contacting and a non-contacting position.
- film is used hereinafter to refer to any unrestricted length of material.
- the film may or may not have aligned and evenly spaced perforations, which are hereinafter referred to as “sprocket holes.”
- Camera or motion picture film is, of course, a primary example, but the present invention is not to be construed to be limited to a film for still camera or even motion picture film.
- the film may be a strip of material for other purposes as well.
- the scanning apparatus 100 operates by converting electromagnetic radiation from an image to an electronic (digital) representation of the image.
- the image being scanned is typically embodied in a physical form, such as on a photographic media, i.e., film, although other media may be used.
- the electromagnetic radiation used to convert the image into a digitized representation is preferably infrared light.
- the scanning apparatus 100 generally includes a number of optic sensors 102 .
- the optic sensors 102 measure the intensity of electromagnetic energy passing through or reflected by the film 112 .
- the source of electromagnetic energy is typically a light source 110 which illuminated the film 112 containing the scene image 104 .
- Radiation from the source 110 may be diffused or directed by additional optics such as filters (not shown) and one or more lenses 106 positioned near the sensors 102 and the film 112 in order to illuminate the images 104 and 108 more uniformly.
- additional optics such as filters (not shown) and one or more lenses 106 positioned near the sensors 102 and the film 112 in order to illuminate the images 104 and 108 more uniformly.
- more than one source may be used.
- Source 110 is positioned on the side of the film 112 opposite the optic sensors 102 . This placement results in sensors 102 detecting radiation emitted from source 110 as it passes through the image 104 on the film 112 .
- Another radiation source 111 is shown placed on the same side of the film 112 as the sensors 102 . When source 111 is activated, sensors 102 detect radiation reflected by the images 104 and 108 . This process of using two sources positioned on opposite sides of the film being scanned is described in more detail below in conjunction with FIG. 2 .
- the optic sensors 102 are generally geometrically positioned in arrays such that the electromagnetic energy striking each optical sensor 102 corresponds to a distinct location 114 in the images 104 and 108 . Accordingly, each distinct location 114 in the scene image 104 corresponds to a distinct location, referred to as a picture element, or pixel for short, in the scanned, or digitized image.
- the image 104 on film 112 is usually sequentially moved, or scanned, across the optical sensor array 102 .
- the optical sensors 102 are typically housed in a circuit package 116 that is electrically connected, such as by cable 118 , to supporting electronics for computer data storage and processing, shown together as computer 120 . Computer 120 may then process the digitized image 105 . Alternatively, computer 120 may be replaced with a microprocessor and cable 118 replaced with an electrical circuit connection.
- Optical sensors 102 may be manufactured from different materials and by different processes to detect electromagnetic radiation in varying parts and bandwidths of the electromagnetic spectrum.
- the optical sensor 102 may include a photodetector (not expressly shown) that produces an electrical signal proportional to the intensity of electromagnetic energy striking the photodetector. Accordingly, the photodetector measures the intensity of electromagnetic radiation attenuated by the image 104 on film 112 .
- FIG. 2 a conventional color film 112 is depicted.
- the present invention uses duplex film scanning that refers to using a front source 216 and a back source 218 to scan the film 112 with reflected radiation 222 from the front 226 and reflected radiation 224 from the back 228 of the film 112 and by transmitted radiation 230 and 240 that passes through all layers of the film 112 .
- the sources 216 , 218 are generally monochromatic and preferably infrared.
- the respective scans, referred to herein as front, back, front-through and back-through, are further described below.
- FIG. 2 separate color levels are viewable within the film 112 during development of the red layer 242 , green layer 244 and blue layer 246 .
- Over a clear film base 232 are three layers 242 , 244 , 246 sensitive separately to red, green and blue light, respectively. These layers are not physically the colors; rather, they are sensitive to these colors.
- the blue sensitive layer 246 would eventually develop a yellow dye, the green sensitive layer 244 a magenta dye, and the red sensitive layer 242 a cyan dye.
- layers 242 , 244 , and 246 are opalescent. Dark silver grains 234 developing in the top layer 246 , the blue source layer, are visible from the front 226 of the film, and slightly visible from the back 228 because of the bulk of the opalescent emulsion. Similarly, grains 236 in the bottom layer 242 , the red sensitive layer, are visible from the back 228 by reflected radiation 224 , but are much less visible from the front 226 . Grains 238 in the middle layer 244 , the green sensitive layer, are only slightly visible to reflected radiation 222 , 224 from the front 226 or the back 228 . However, they are visible along with those in the other layers by transmitted radiation 230 and 240 .
- each pixel for the film 112 yields four measured values, one from each scan, that may be mathematically processed in a variety of ways to produce the initial three colors, red, green and blue, closest to the original scene.
- the front signal records the radiation 222 reflected from the illumination source 216 in front of the film 112 .
- the set of front signals for an image is called the front channel.
- the front channel principally, but not entirely, records the attenuation in the radiation from the source 216 due to the silver metal particles 234 in the top-most layer 246 , which is the blue recording layer. There is also some attenuation of the front channel due to silver metal particles 236 , 238 in the red and green layers 242 , 244 .
- the back signal records the radiation 224 reflected from the illumination source 218 in back of the film 112 .
- the set of back signals for an image is called the back channel.
- the back channel principally, but not entirely, records the attenuation in the radiation from the source 218 due to the silver metal particles 236 in the bottom-most layer 242 , which is the red recording layer. Additionally, there is some attenuation of the back channel due to silver metal particles 234 , 238 in the blue and green layers 246 , 244 .
- the front-through signal records the radiation 230 that is transmitted through the film 112 from the illumination source 218 in back of the film 112 .
- the set of front-through signals for an image is called the front-through channel.
- the back-through signal records the radiation 240 that is transmitted through the film 112 from the source 216 in front of the film 112 .
- the set of back-through signals for an image is called the back-through channel.
- Both through channels record essentially the same image information since they both record the attenuation of the radiation 230 , 240 due to the silver metal particles 234 , 236 , 238 in all three red, green, and blue recording layers 242 , 244 , 246 of the film 112 .
- the digital film processing system shown in FIGS. 1 and 2 can produce multiple digital image files for the same frame at different film development times, each image file having back, front, and through values which are created using the duplex scanning method described above. It may be desirable to create multiple duplexscanned image files for the same frame at separate development times so that features of the image which appear at various development times can be recorded.
- the highlight areas of the image i.e., areas of the film which were exposed to the greatest intensity of light
- those areas of the film which were exposed to a lower intensity of light such as areas of the film corresponding to shadows in the original scene).
- a longer development time will allow shadows and other areas of the film which were exposed to a low intensity of light to be more fully developed, thereby providing more detail in these areas.
- a longer development time will also reduce details and other features of the highlight areas of the image.
- one development time must be selected and this development time is typically chosen as a compromise between highlight details, shadow details and other features of the image which are dependent on the duration of development. Scanning this developed film image using a conventional film scanner will not revive any of these details which are development time dependent.
- such a compromise need not be made, as digital image files for the same image can be created at multiple development times while the film develops, and these multiple images can be combined to produce an enhanced image.
- FIG. 3 a configuration of a film pre-scan apparatus 300 is shown in accordance with the present invention.
- a film canister 303 Prior to opening a film canister 303 , it may be inspected to ensure that it is, or has been generally kept, in good condition, e.g., that the canister 303 is dry and does not exhibit structural damage.
- the film 302 within the canister 303 is then removed. Removal of the film 302 from the canister 303 may be accomplished by opening the canister 303 mechanically or by capturing the film 302 and pulling it out of the canister 303 . Often, removal of the film 302 leads to destruction of the canister 303 using, e.g., a shred technique or punch technique.
- the film 302 is pulled from within the canister 303 by sliding a capturing extension into the canister 303 and pulling the film 302 out by the film tongue. The film 302 may or may not be cut away from the spool prior to further processing.
- a scanner 304 detects for any imperfections, such as moisture, oil, foreign objects, particles, creases, tears, or broken sprocket holes, in the film 302 .
- the film 302 is scanned or inspected for imperfections in a totally light tight enclosure using an infrared or near infrared light source and a scanner 304 .
- the scanner 304 may be connected to a microprocessor and a memory that stores reference data for comparison to the actual data measured by the scanner 304 .
- the scanner 304 may be, e.g., a reflective scanner, wherein transmitted light, e.g., infrared or near infrared light, strikes the film 302 and is reflected back to a sensor.
- a reference sensor and a memory may be connected to the microprocessor to provide the reference readings or data.
- the reference sensor readings may be determined by the reference sensor and stored in the memory for use by the microprocessor.
- the reference sensor may be a reflective sensor or a sensor that reads light that is transmitted through the film, is reflected by the film or both. Alternatively or concurrently, light that is transmitted through the film 302 may be detected and used to measure potential film imperfections.
- the film 302 may then be cut, rolled onto a spool and put into a DFP system or other processing system.
- a vacuum/blower 306 may be used to remove foreign objects and even moisture from the film 302 .
- the film 302 may be rewound back into the canister 303 and the reasons for the rejection of the film 302 may be reported to the operator of the pre-scan apparatus 300 .
- a tape dispenser 308 is also shown in the path of the film 302 in which any damaged sprockets may be repaired. Take-up spool 310 is positioned in-line with the film 302 to provide for a place where repaired and cleaned film 302 is stored prior to DFP.
- take-up spool 310 may be used to gather film 302 that will not be eligible for DFP, in which case the rejected film is once again placed in a light-tight container for transport to standard chemical processing.
- the film 302 is taken from the take-up spool 310 and cut in cutter 312 for capture by the rollers that will feed the film 302 into a DFP system.
- the pre-scan apparatus 300 may incorporate other remedial measures to prepare the film 302 for processing.
- moisture content may be determined using a hydrometer.
- moisture may be detected by noting increased specular reflections from the emulsion side of the film 302 relative to the nominal reflection expected for dry film.
- the film 302 may then be routed into an air-based dryer or passed through rollers that remove water.
- the film 302 may then be certified for DFP and routed into a DFP apparatus.
- Another type of imperfection that may be detected is dust and other foreign objects on the surface of the film 302 .
- a number of debris removal systems may be used to remove foreign objects from the film 302 .
- foreign objects may be removed by running the film through tacky rollers that mechanically remove foreign objects by having a higher adherence to the foreign object than the film emulsion. The rollers may be replaced or cleaned once a sufficient amount of foreign objects are collected on the rollers. An embodiment of a cleaning system for such rollers is discussed in more detail below.
- Foreign objects may also be removed by a vacuum, a blower or both 306 , wherein the foreign objects are sucked or blown off the film 302 .
- the blower/vacuum method will be useful for the removal of dust that collects on the film during storage or upon exposure to dusty conditions as well as removal of damaged film sprocket debris.
- the film 302 is scanned again to determine if the film has been cleaned sufficiently for DFP. Upon certification for DFP the film 302 may be routed into a DFP apparatus.
- Apparatus and methods for attaching pre-perforated or even non-perforated tape to film 302 are known in the art and may be used to repair the film 302 prior to DFP.
- One example of such a system is disclosed in U.S. Pat. No. 3,959,048 in which an arrangement for bonding preperforated repair tape to motion picture film with the precision required to align the tape perforations with the film perforations along the length of the tape, is disclosed. Improvements over that arrangement are disclosed in U.S. Pat. No. 4,026,756, in which the problem of aligning the perforations of the repair tape with the perforations of the film along the length of the film is shown.
- the pressure roller in the second roller may be grooved.
- a grooved roller has the advantage that the repair tape between sprocket holes is applied around each sprocket hole.
- a sprocket wheel at the repair station may be used to pull repair tape from a roll on a spindle for bonding onto perforated film fed directly from a supply reel through a guide to the sprocket wheel.
- a sponge rubber pressure roller on a spring loaded lever may be used to press the film onto the repair tape for pressure bonding.
- sponge rubber is used herein, in a generic sense to refer to resilient, porous (closed cell) material used for the roller or may even be a soft rubber roller.
- a suitable material that may be used is a nitrile rubber that is commercially available, but any other nitrile rubber (a class of synthetic rubbers) may be used. All that is required is that the resilient material used be formed with closed cells to resemble a sponge, with sufficient density to permit the material, cut or formed into the shape of a roller, to function as a pressure roller while allowing the sprockets to penetrate into the material.
- FIG. 4 is a flow chart of a method for pre-scanning film in accordance with the present invention.
- the film is removed from its container and spooled into the pre-scan system. The film may be cut at this stage, however, it is envisioned that if film is to be rejected it would best be kept at its full length.
- the film may be inspected visually by a user under infrared or near infrared light during the pre-scan using the one or more sensors of the present invention.
- the status of the film is verified, that is, a determination is made whether remedial measures should be taken to bring the film into compliance with the DFP system requirements as compared to reference levels. Alternatively, the film may be rewound back into the canister and the reasons for the rejection of the film may be reported to the pre-scan apparatus operator.
- the problem or problems, if any, are categorized and remedial measures are taken.
- remedial measures include the use of vacuum/blower or tacky rollers to clean liquid and solid foreign object impurities from the film.
- the problem may be with broken, scratched, backward or bent film. If the sprockets are broken, for example, the film is directed into a tape dispenser that corrects for the loss of lateral support in the film for the images that are captured on the film. The lateral support for the images is most often necessary for the DFP process because of the need to maintain the film as flat as possible.
- the determination is made, at block 408 , whether the film has been repaired and if the remedial measures are sufficient for further processing or if the film must still be rejected.
- the film is routed into the DFP system for further processing or the film is rejected from DFP and directed toward a regular chemical bath processing system. This may involve rewinding the film into the original canister or transferring the film to a holding location for manual removal.
- inventions of the present invention may include always cleaning the film and then inspecting the film, or performing the cleaning and inspection steps in an iterative manner. The results of the inspection may then be reported to an operator or recorded in some manner. If the film is rejected, it can be rolled back into the canister or stored in a new canister or storage device. Moreover, the present invention may report the specific reasons why the film was rejected and identify where on the film the problems were detected.
- FIG. 5 is a schematic diagram of film cleansing system 500 which can be used to efficiently clean film prior to digital film processing.
- the system includes a particle removal member 502 which removes particles from the film 112 , and a cleaning system 510 which selectively cleans particles from the particle removal member 502 as needed.
- a pair of particle removal members 502 are provided to remove particles, such as dust, lint, hair, particulate, and the like, from opposing surfaces of the film 112 .
- the particle removal members 502 comprise particle take-off (i.e., removal) rollers, and the film is fed between the two rollers 502 .
- any suitable film transportation system can be utilized, such as those which comprise nip rollers, sprockets, motors, belts, guides, conveyors, and the like, and which contact the film in order to transport the film in a predetermined path.
- particles are transferred from the film to the rollers 502 .
- This can occur by providing the rollers 502 with a particle attraction surface 504 which removes the particles from the film 112 .
- This surface 504 can comprise a tacky or adhesive surface to which the particles adhere as the roller 502 contacts the film 112 .
- any suitable particle attraction surface 504 may be utilized, such as those which attract particles through electric charge, suction force, magnetism, or any other suitable force.
- each cleaning system 510 can be used to selectively clean each removal member 502 when needed or desired.
- each cleaning system 510 includes a cleaning member 512 for a particle removal member 502 .
- Each cleaning member 512 is relatively movable with respect to its corresponding particle removal member 502 such that it can move into and out of contact with the particle removal member, to selectively remove particles from the particle removal member.
- the cleaning member 512 comprises a contact roller which can be moved or indexed between a non-contacting position (shown in FIG. 5 ) and a contacting position (shown in FIG. 6 ). When in the contacting position of FIG.
- the contact roller 512 removes particles from the particle removal roller 502 and thereby cleans that roller. Accordingly, in the contacting position of FIG. 6 , as the roller 502 rotates, the contact roller 512 also rotates and the contact between the removal roller 502 and the contact roller 512 (which can include a material over the roller) causes particles to be transferred from the removal roller to the contact roller, such that the removal roller is cleaned.
- An adhesive or attractive force can be utilized to cause a contact roller 512 to attract particles from a particle removal roller 502 , when in the contacting position of FIG. 6 .
- an adhesive tape 514 is fed over the contact roller 512 and used to attract the particles from the particle removal roller 502 . Accordingly, when a roller 512 is brought in contact with a particle removal roller 502 for performing the cleaning process, the tape 514 is fed between the rollers 502 and 512 and attracts many of the particles which were removed from the film by the roller 502 . In this way, the roller 502 is cleaned when needed or desired.
- any of a variety of suitable tape transport systems can be utilized.
- the tape is supplied via a supply roll 516 and is wound onto a take-up roller 518 .
- a motor or other suitable actuator can be utilized to transport the tape 514 from the supply roll 516 to the take-up roller 518 .
- the tape could be initially threaded from the supply roll 516 over the contact roller 512 and to the take-up roller 518 , and the take-up roller can be rotated by a motor, such as a DC motor, a stepper motor, or any other suitable motor.
- a motor such as a DC motor, a stepper motor, or any other suitable motor.
- other appropriate actuators, conveyors, rollers, and the like can be utilized to transport the tape 514 .
- FIG. 5 illustrates the non-contacting position of each cleaning system 510 .
- the particle removal rollers 502 remove particles from the opposing sides of the film 112 by contact with the film.
- the film 112 then moves to the film processing equipment, such as the duplex scanning equipment described above for example, after being cleaned by the particle removal rollers 502 .
- the film processing equipment such as the duplex scanning equipment described above for example, after being cleaned by the particle removal rollers 502 .
- particles build up on the rollers 502 and it is desirable to easily clean these rollers 502 when needed or desired.
- a contact roller 512 is moved to the contacting position shown in FIG. 6 . This may occur when no film is being moved through the system 500 or when film is being moved through the system.
- the contact roller 512 is movable along a path, such as via a guide, between the two positions shown in FIGS. 5 and 6 .
- the tape 514 is moved from its corresponding supply roll 516 to its take-up roller 518 and passes over its corresponding contact roller 512 .
- the tape 514 of that system is positioned between the contact roller 512 and the particle removal roller 502 , and is in contact with both of these rollers 502 and 512 .
- the tape 514 is wound about the take-up roller 518 as the cleaning takes place.
- the tape 514 may be moved a predetermined distance, for a predetermined time, or for a predetermined number of revolutions of one of the rollers.
- two cleaning systems 510 can be provided to clean both particle removal members 502 (if multiple members 502 are utilized).
- the movement of the tape 514 is stopped, and the contact roller 512 is returned to the non-contacting position of FIG. 5 .
- Periodic cleanings can occur until all tape 514 has been transferred from the supply roll 516 to the take-up roller 518 .
- the tape 514 on the roller 518 can be simply discarded, and a new supply roll 516 provided, such that new tape 514 can be threaded over the contact roller 512 to the take-up roller 518 .
- Cleanings can be initiated by the user by moving the contact roller 512 to the position of FIG. 6 and beginning to wind the tape 514 about the take-up roller 518 . These movements can be initiated under the power of motors or other actuators, such as discussed above. These movements can also be initiated automatically. For example, a controller can initiate the movements at predetermined times. In particular, the controller can sense when the particle removal roller 502 has completed a given number of revolutions, and can then initiate the movements of the cleaning system 510 to clean the roller 502 .
- the controller can sense the time that the film cleansing system 500 has been in operation since the last cleaning of the rollers 502 , or the number of film rolls cleaned since the last cleaning of the rollers 502 , and, upon reaching a predetermined maximum value, initiate the movements one or more of the cleaning systems 510 to clean the rollers 502 .
- FIGS. 7 and 8 illustrate one exemplary system for use in moving the contact roller 512 from the non-contacting position to the contacting position.
- the contact roller 512 is connected to a shaft 525 which is slidingly movable within a guide 524 .
- the shaft 525 of that contact roller 512 is connected to the shaft 519 of the take-up roller 518 via a link 522 , such as a chain or belt for example.
- a biasing member 520 such as a clock spring or spiral spring for example, provides a force which keeps the contact roller 512 in the non-contacting position when not in use.
- the motor or actuator connected to the shaft 519 of the take-up roller 518 is activated and causes the shaft 519 and roller 518 to rotate.
- This rotation is transmitted via the linkage 522 to cause simultaneous rotation of the shaft 525 and contact roller 512 .
- the torque produced by this rotation lowers the contact roller 512 to the contacting position shown in FIG. 8 .
- the rotation also causes the tape 514 to move from the supply roll 516 , over the contact roller 512 , and to the take-up roller 518 . During this movement of the tape 514 , contact of the tape 514 with the particle removal roller 502 cleans the roller 502 .
- the motor which produces the motion of the rollers and the tape can be any of a variety of suitable motors, such as DC motors or stepper motors for example, and motion of the rollers can be accomplished via suitable linkages, gears, shafts, and related devices.
- a slip clutch can be provided to prevent torque overload of the contact roller 512 against the particle removal roller 502 .
- the clutch can be sized and configured to slip once a predetermined maximum torque is reached (e.g., one pound-inch), in order to keep the load constant.
- a controller 526 can be provided to activate the motor(s) which drive(s) the rollers 518 and 512 .
- the controller 526 senses the number of rotations of the particle removal roller 502 via a sensor. Once a predetermined number of rotations is reached, the controller 526 transmits a signal to the motor to begin rotation of the shafts 519 and 525 and to thereby cause movement of the rollers 518 and 512 and movement of the tape 514 .
- the controller 526 could produce this signal after a predetermined amount of time has past or after a predetermined usage of the system 500 is sensed.
- the torque produced by the rotations will overcome the force of the biasing member 520 and move the rollers 512 to the contacting position of FIG. 8 .
- the controller 526 can continue the cleaning for a predetermined period of time or for a predetermined number of rotations.
- the controller 526 can cease the production of the activation signal to cause the rotation of the rollers 512 and 518 and movement of the tape 514 to cease, to cause the contact roller 512 to move back to the non-contacting position of FIG. 7 via the force of the biasing member 520 , and to thereby cease the cleaning of the particle removal roller 502 .
- the controller 520 can include suitable circuitry, hardware and/or software to produce the motor activation signal at the desired time.
Abstract
The present invention provides a method, apparatus and system that pre-scans and pre-treats film for improved digital film processing. The apparatus for use with the invention includes, generally, a sensor for detecting one or more imperfections on the film and a microprocessor connected to the sensor that determines the amount and extent of imperfections of the film based on one or more reference readings. The present invention may also include a tape dispenser, cleaning rollers, a blower or vacuum to remove and/or correct any imperfections in the film. One embodiment includes a cleaning system for a particle removal member which removes particles from film. The cleaning system is relatively movable and selectively contactable with the particle removal member to clean particles from the particle removal member.
Description
- This application claims the benefit of U.S. Provisional Application No. 60/173,648, filed Dec. 30, 1999, the entire disclosure of which is hereby incorporated herein by reference.
- The present invention relates generally to the field of digital film processing, and more particularly, to an apparatus and method for pre-screening and pre-treating film that is amenable to digital film processing.
- Standard color photographic negative film that is widely used in still cameras today is designed and manufactured to contain three superimposed, semi-independent color sensing layers. Spectral sensitivity curves for photographic negative film show the typical response of the three layers of photographic film over the visible light spectrum; assuming equal radiated power at each wavelength. In particular, it is known that the top layer responds primarily to light of short wavelength (blue light), the middle layer responds primarily to light of medium wavelength (green light) and the bottom layer responds to light of long wavelength (red light). When film with these types of spectral sensitivities is exposed to visible light, each spot on the film records the amount of blue, green and red light, or flux. Incident flux creates what is referred to as the latent image.
- In conventional color photographic development systems, the exposed film is chemically processed to produce dyes in the three layers with color densities directly proportional to the blue, green, and red spectral exposures that were recorded in the latent image. Yellow dye is produced in the top layer, magenta dye in the middle layer, and cyan dye in the bottom layer. Through a separate conventional process, positive photographic images may then be electronically scanned to produce a digital image.
- Conventional electronic scanning of developed photographic negative film to produce digital images is done by passing visible light through the developed negative and using filters with appropriate spectral responsivities to detect, at each location on the film, the densities of the yellow, magenta and cyan dyes in the photographic negative. The density values detected in this way are indirect measures of the blue, green and red light that initially exposed each location on the film. These measured density values constitute three values used as the blue, green and red values for each corresponding location, or pixel, in the digital image. Further processing of these pixel values is often performed to produce a digital image that accurately reproduces the original scene and that is pleasing to the human eye.
- Image enhancement has been the subject of a large body of film processing technology. A common feature of all digital film processing technology is that the film to be scanned must be relatively flat during the optical scan. Furthermore, the optical scan best occurs using a relatively uniform velocity during the scan period. Small imperfections in the film, such as tearing, creases, scratches, foreign objects and fluids decrease the efficacy of the digital scan. Large imperfections make digital film processing and conventional scanning very difficult.
- Large imperfections to the film surface, such as broken, ripped or torn sprocket holes, are encountered frequently during automated film processing. In film processing using chemical development tanks, tears to the sprocket holes are generally not an issue because they are not used to transfer the film from tank to tank. For example, torn sprocket holes occur when the user, or in the case of automated cameras, the auto-drive advances the film too far, breaking one or more of the sprocket holes.
- In addition to large imperfections, such as sprocket hole breakage, other imperfections may occur when foreign objects, such as water, particles (e.g., dust), and oils contact the film. Exposure to these foreign objects may even occur while the film is still in its original canister. Creases in the film are yet another imperfection that may occur when the film is reverse-wound.
- The present invention relates to pre-screening and/or pre-treating film before further chemical processing and scanning. Presently, conventional systems do not take into consideration of the special needs of digital film processing (“DFP”) techniques and devices. The present invention can correct, to the extent possible, film imperfections prior to processing. In at least one embodiment, imperfections in the film can be identified and then corrected.
- In a particular embodiment, the present invention comprises an apparatus for use in digital image processing in which the suitability of a film for DFP is determined prior to scanning. The apparatus for use with the invention includes, generally, a sensor for detecting one or more imperfections on the film and a microprocessor connected to the sensor that determines the amount and extent of imperfections of the film based on one or more reference readings. A reference sensor and a memory may be connected to the microprocessor to provide the reference readings. The reference sensor readings may be determined by the reference sensor and stored in the memory for use by the microprocessor. The reference sensor may be a reflective sensor or a sensor that reads light that traverses the film, is reflected by the film or both.
- In a particular embodiment of the invention, the apparatus may also include a tape dispenser positioned to repair the film if the imperfection detected by the sensor is a breakage in the film. For example, the sensor may detect abnormalities in the shape of the perforations or sprockets on the film. Another imperfection that may be detected, and in some embodiments corrected, is the detection of moisture on the film (or even the actual moisture level). If excessive moisture is detected, as determined in the comparison of actual and reference measurements, the film is dried until the moisture level drops below the predetermined acceptable moisture level. Film may be dried using, for example, a blower, a vacuum or even rollers that remove moisture mechanically or by capillary action.
- When the sensor detects foreign objects on the film, these may be removed using a variety of systems. One such system is the use of a blower, a vacuum or both to remove the foreign object. Another system may use one or more rollers that mechanically remove the foreign object, e.g., tacky rollers. When the sensor detects one or more foreign objects on the film, the microprocessor compares the amount of foreign object(s) on the film to reference levels, and if the level is above a predetermined acceptable foreign object level, the film is cleaned until the foreign object level drops below the predetermined acceptable foreign object level.
- Yet another embodiment of the present invention is a method of identifying film suitable for digital image processing that includes the steps of: exposing film to one or more light sources; detecting the light reflected from the film to measure imperfections on the film; determining if the imperfections on the film exceed reference sensor readings; and routing the film based on the sensor output depending on whether the film is suitable for digital film processing from film that is not suitable for digital film processing. The method may also include the steps of: determining the level of moisture in the film, detecting foreign objects on the film; and scanning for one or more broken sprockets on the film edges. Imperfections in the moisture level, the presence of foreign objects and broken sprockets will lead to rejection of the film from further digital film processing. The invention may also include one or more of the following film imperfection correction systems. Imperfections on the film are corrected selecting a remedial measure that corrects the imperfection, for example, where excessive moisture and foreign objects are detected they are removed. Likewise, if one or more broken sprockets are detected, they may be repaired using, e.g., a tape dispenser mechanism prior to digital film processing.
- Other embodiments of the present invention may include always cleaning the film and then inspecting the film, or performing the cleaning and inspection steps in an iterative manner. The results of the inspection may then be reported to an operator or recorded in some manner. If the film is rejected, it can be rolled back into the canister or stored in a new canister or storage device. Moreover, the present invention may report the specific reasons why the film was rejected and identify where on the film the problems were detected.
- To clean the film upon detection of imperfections, or as a standard procedure, a particle removal member can be utilized. In one embodiment, the particle removal member which can be easily and efficiently cleaned when a need for cleaning is identified. In particular, the particle removal member can be periodically cleaned by a cleaning system which is adapted for removing particles from the particle removal member. In this embodiment, the cleaning system and the particle removal member are relatively movable so as to be selectively contactable with respect to each other. The cleaning system has a particle adhering surface which is operative to remove particles from the particle removal member when the cleaning system is in contact with the particle removal member. The particle adhering surface can comprise disposable adhesive tape and a tape transport system can be used to advance the tape across a cleaning member, such as a roller for example. The cleaning system can automatically move into contact with the particle removal member at predetermined times, such as detection of a passage of time or an amount of usage for example. Other features and advantages of the present invention shall be apparent to those of ordinary skill in the art upon reference to the following detailed description taken in conjunction with the accompanying drawings.
- The above and further advantages of the invention may be better understood by referring to the following description in conjunction with the accompanying drawings in which corresponding numerals in the different figures refer to corresponding parts in which:
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FIG. 1 is a perspective view of a scanning device in accordance with the present invention; -
FIG. 2 is an illustration of a digital film processing system which uses duplex film scanning in accordance with the present invention; -
FIG. 3 shows a configuration of a film pre-scan apparatus in accordance with the present invention; -
FIG. 4 is a flow chart of a method for pre-scanning film in accordance with the present invention; -
FIG. 5 is a schematic diagram of film cleansing system which can be used to efficiently clean film prior to digital film processing; -
FIG. 6 is schematic diagram of the system ofFIG. 5 , illustrating a cleaning member in the contacting position for removal of particles from the particle removal member; and -
FIGS. 7 and 8 are schematic diagrams showing an indexing system for automatic movement of the cleaning member ofFIG. 6 between a contacting and a non-contacting position. - While the making and using of various embodiments of the present invention are discussed herein in terms of a digital film processing system, it should be appreciated that the present invention provides many applicable inventive concepts which can be embodied in a wide variety of specific contexts. For example, the present invention can be used to pre-scan and pre-treat any strip of material. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention and do not delimit the scope of the invention.
- The term “film” is used hereinafter to refer to any unrestricted length of material. The film may or may not have aligned and evenly spaced perforations, which are hereinafter referred to as “sprocket holes.” Camera or motion picture film is, of course, a primary example, but the present invention is not to be construed to be limited to a film for still camera or even motion picture film. The film may be a strip of material for other purposes as well.
- An improved digital film scanning apparatus is shown in
FIG. 1 . Thescanning apparatus 100 operates by converting electromagnetic radiation from an image to an electronic (digital) representation of the image. The image being scanned is typically embodied in a physical form, such as on a photographic media, i.e., film, although other media may be used. In general, the electromagnetic radiation used to convert the image into a digitized representation is preferably infrared light. Thescanning apparatus 100 generally includes a number ofoptic sensors 102. Theoptic sensors 102 measure the intensity of electromagnetic energy passing through or reflected by thefilm 112. The source of electromagnetic energy is typically alight source 110 which illuminated thefilm 112 containing thescene image 104. Radiation from thesource 110 may be diffused or directed by additional optics such as filters (not shown) and one ormore lenses 106 positioned near thesensors 102 and thefilm 112 in order to illuminate theimages Source 110 is positioned on the side of thefilm 112 opposite theoptic sensors 102. This placement results insensors 102 detecting radiation emitted fromsource 110 as it passes through theimage 104 on thefilm 112. Anotherradiation source 111 is shown placed on the same side of thefilm 112 as thesensors 102. Whensource 111 is activated,sensors 102 detect radiation reflected by theimages FIG. 2 . - The
optic sensors 102 are generally geometrically positioned in arrays such that the electromagnetic energy striking eachoptical sensor 102 corresponds to adistinct location 114 in theimages distinct location 114 in thescene image 104 corresponds to a distinct location, referred to as a picture element, or pixel for short, in the scanned, or digitized image. Theimage 104 onfilm 112 is usually sequentially moved, or scanned, across theoptical sensor array 102. Theoptical sensors 102 are typically housed in acircuit package 116 that is electrically connected, such as bycable 118, to supporting electronics for computer data storage and processing, shown together ascomputer 120.Computer 120 may then process thedigitized image 105. Alternatively,computer 120 may be replaced with a microprocessor andcable 118 replaced with an electrical circuit connection. -
Optical sensors 102 may be manufactured from different materials and by different processes to detect electromagnetic radiation in varying parts and bandwidths of the electromagnetic spectrum. Theoptical sensor 102 may include a photodetector (not expressly shown) that produces an electrical signal proportional to the intensity of electromagnetic energy striking the photodetector. Accordingly, the photodetector measures the intensity of electromagnetic radiation attenuated by theimage 104 onfilm 112. - Turning now to
FIG. 2 , aconventional color film 112 is depicted. As previously described, the present invention uses duplex film scanning that refers to using afront source 216 and aback source 218 to scan thefilm 112 with reflectedradiation 222 from the front 226 and reflectedradiation 224 from the back 228 of thefilm 112 and by transmittedradiation film 112. While thesources - In
FIG. 2 , separate color levels are viewable within thefilm 112 during development of thered layer 242, green layer 244 andblue layer 246. Over aclear film base 232 are threelayers sensitive layer 246 would eventually develop a yellow dye, the green sensitive layer 244 a magenta dye, and the red sensitive layer 242 a cyan dye. - During film development, layers 242, 244, and 246 are opalescent. Dark
silver grains 234 developing in thetop layer 246, the blue source layer, are visible from thefront 226 of the film, and slightly visible from the back 228 because of the bulk of the opalescent emulsion. Similarly,grains 236 in thebottom layer 242, the red sensitive layer, are visible from the back 228 by reflectedradiation 224, but are much less visible from the front 226.Grains 238 in the middle layer 244, the green sensitive layer, are only slightly visible to reflectedradiation back 228. However, they are visible along with those in the other layers by transmittedradiation film 112 from both the front 226 and back 228 of thefilm 112, each pixel for thefilm 112 yields four measured values, one from each scan, that may be mathematically processed in a variety of ways to produce the initial three colors, red, green and blue, closest to the original scene. - The front signal records the
radiation 222 reflected from theillumination source 216 in front of thefilm 112. The set of front signals for an image is called the front channel. The front channel principally, but not entirely, records the attenuation in the radiation from thesource 216 due to thesilver metal particles 234 in thetop-most layer 246, which is the blue recording layer. There is also some attenuation of the front channel due tosilver metal particles green layers 242, 244. - The back signal records the
radiation 224 reflected from theillumination source 218 in back of thefilm 112. The set of back signals for an image is called the back channel. The back channel principally, but not entirely, records the attenuation in the radiation from thesource 218 due to thesilver metal particles 236 in thebottom-most layer 242, which is the red recording layer. Additionally, there is some attenuation of the back channel due tosilver metal particles green layers 246, 244. - The front-through signal records the
radiation 230 that is transmitted through thefilm 112 from theillumination source 218 in back of thefilm 112. The set of front-through signals for an image is called the front-through channel. Likewise, the back-through signal records theradiation 240 that is transmitted through thefilm 112 from thesource 216 in front of thefilm 112. The set of back-through signals for an image is called the back-through channel. Both through channels record essentially the same image information since they both record the attenuation of theradiation silver metal particles film 112. - Several image processing steps are then used to convert the illumination source radiation information for each channel to the red, green, and blue values similar to those produced by conventional scanners for each spot on the
film 112. These steps are used because thesilver metal particles - Because the scanning described above occurs during film development rather than after the film is developed, the digital film processing system shown in FIGS. 1 and 2 can produce multiple digital image files for the same frame at different film development times, each image file having back, front, and through values which are created using the duplex scanning method described above. It may be desirable to create multiple duplexscanned image files for the same frame at separate development times so that features of the image which appear at various development times can be recorded. During the film development process, the highlight areas of the image (i.e., areas of the film which were exposed to the greatest intensity of light) will develop before those areas of the film which were exposed to a lower intensity of light (such as areas of the film corresponding to shadows in the original scene). Thus, a longer development time will allow shadows and other areas of the film which were exposed to a low intensity of light to be more fully developed, thereby providing more detail in these areas. However, a longer development time will also reduce details and other features of the highlight areas of the image. Thus, in conventional film development, one development time must be selected and this development time is typically chosen as a compromise between highlight details, shadow details and other features of the image which are dependent on the duration of development. Scanning this developed film image using a conventional film scanner will not revive any of these details which are development time dependent. However, in the digital film processing system of
FIGS. 1 and 2 , such a compromise need not be made, as digital image files for the same image can be created at multiple development times while the film develops, and these multiple images can be combined to produce an enhanced image. - In
FIG. 3 a configuration of a filmpre-scan apparatus 300 is shown in accordance with the present invention. Prior to opening afilm canister 303, it may be inspected to ensure that it is, or has been generally kept, in good condition, e.g., that thecanister 303 is dry and does not exhibit structural damage. Upon approval for further processing, thefilm 302 within thecanister 303 is then removed. Removal of thefilm 302 from thecanister 303 may be accomplished by opening thecanister 303 mechanically or by capturing thefilm 302 and pulling it out of thecanister 303. Often, removal of thefilm 302 leads to destruction of thecanister 303 using, e.g., a shred technique or punch technique. Alternatively, thefilm 302 is pulled from within thecanister 303 by sliding a capturing extension into thecanister 303 and pulling thefilm 302 out by the film tongue. Thefilm 302 may or may not be cut away from the spool prior to further processing. - Once the
film 302 is pulled out of itscanister 303, ascanner 304 detects for any imperfections, such as moisture, oil, foreign objects, particles, creases, tears, or broken sprocket holes, in thefilm 302. Thefilm 302 is scanned or inspected for imperfections in a totally light tight enclosure using an infrared or near infrared light source and ascanner 304. Thescanner 304 may be connected to a microprocessor and a memory that stores reference data for comparison to the actual data measured by thescanner 304. Thescanner 304 may be, e.g., a reflective scanner, wherein transmitted light, e.g., infrared or near infrared light, strikes thefilm 302 and is reflected back to a sensor. The reflected light is then measured and the difference in reflectivity is used to determine if thefilm 302 is damaged or contains imperfections. A reference sensor and a memory may be connected to the microprocessor to provide the reference readings or data. The reference sensor readings may be determined by the reference sensor and stored in the memory for use by the microprocessor. The reference sensor may be a reflective sensor or a sensor that reads light that is transmitted through the film, is reflected by the film or both. Alternatively or concurrently, light that is transmitted through thefilm 302 may be detected and used to measure potential film imperfections. Upon verification that there is nothing wrong with thefilm 302 and that thefilm 302 is suitable for DFP processing, thefilm 302 may then be cut, rolled onto a spool and put into a DFP system or other processing system. - If imperfections are detected, however, a series of remedial steps may be taken prior to determining that the film is unsuitable for DFP and should be routed for regular chemical processing and development. It is important to make a determination of suitability for DFP prior to initiating DFP because deposition of the thin chemical film layer in DFP irreversibly renders the film unsuitable for regular chemical bath or tank film processing.
- A vacuum/
blower 306 may be used to remove foreign objects and even moisture from thefilm 302. Alternatively, thefilm 302 may be rewound back into thecanister 303 and the reasons for the rejection of thefilm 302 may be reported to the operator of thepre-scan apparatus 300. Atape dispenser 308 is also shown in the path of thefilm 302 in which any damaged sprockets may be repaired. Take-upspool 310 is positioned in-line with thefilm 302 to provide for a place where repaired and cleanedfilm 302 is stored prior to DFP. Alternatively, take-upspool 310 may be used to gatherfilm 302 that will not be eligible for DFP, in which case the rejected film is once again placed in a light-tight container for transport to standard chemical processing. Alternatively, thefilm 302 is taken from the take-upspool 310 and cut incutter 312 for capture by the rollers that will feed thefilm 302 into a DFP system. - The
pre-scan apparatus 300 may incorporate other remedial measures to prepare thefilm 302 for processing. In the case of water-based imperfections, e.g., when thefilm 302 has been exposed to water inside thecanister 303 when dropped into water or exposed to a high moisture atmosphere, moisture content may be determined using a hydrometer. Alternatively, moisture may be detected by noting increased specular reflections from the emulsion side of thefilm 302 relative to the nominal reflection expected for dry film. Depending on the moisture reading, thefilm 302 may then be routed into an air-based dryer or passed through rollers that remove water. Thefilm 302 may then be certified for DFP and routed into a DFP apparatus. - Another type of imperfection that may be detected is dust and other foreign objects on the surface of the
film 302. A number of debris removal systems may be used to remove foreign objects from thefilm 302. For example, foreign objects may be removed by running the film through tacky rollers that mechanically remove foreign objects by having a higher adherence to the foreign object than the film emulsion. The rollers may be replaced or cleaned once a sufficient amount of foreign objects are collected on the rollers. An embodiment of a cleaning system for such rollers is discussed in more detail below. Foreign objects may also be removed by a vacuum, a blower or both 306, wherein the foreign objects are sucked or blown off thefilm 302. The blower/vacuum method will be useful for the removal of dust that collects on the film during storage or upon exposure to dusty conditions as well as removal of damaged film sprocket debris. After cleaning, thefilm 302 is scanned again to determine if the film has been cleaned sufficiently for DFP. Upon certification for DFP thefilm 302 may be routed into a DFP apparatus. - Another imperfection is the breaking of sprocket holes or perforations. In ordinary use, the perforations along
film 302, such as still camera picture film, are engaged by drive sprockets or a shuttle arm used to feed the film into a camera or other device. As thefilm 302 is advanced, thefilm 302 often tears around the perforations, particularly at the beginning and end of a roll offilm 302. In those, and other cases of damage to the perforations, it may be desirable to repair thefilm 302 by bonding a strip of pre-perforated or unperforated tape along thefilm 302 where damage has occurred, with the perforations of the tape aligned with the sprocket holes of thefilm 302. - Apparatus and methods for attaching pre-perforated or even non-perforated tape to film 302 are known in the art and may be used to repair the
film 302 prior to DFP. One example of such a system is disclosed in U.S. Pat. No. 3,959,048 in which an arrangement for bonding preperforated repair tape to motion picture film with the precision required to align the tape perforations with the film perforations along the length of the tape, is disclosed. Improvements over that arrangement are disclosed in U.S. Pat. No. 4,026,756, in which the problem of aligning the perforations of the repair tape with the perforations of the film along the length of the film is shown. By adding or repairing thefilm 302 with tape, whether perforated or not, the potential for problems in the DFP system is decreased. - Other improvements to sprocket repair techniques come from the transverse alignment of the repair tape to maintain side edges of holes in the repair tape in line with side edges of holes in the
film 302, and more particularly to assure firm bonding of the repair tape on thefilm 302 along side edges of holes and between holes. U.S. Patent Letters Pat. No. 4,249,985 issued to Stanfield uses a pressure roller having “apertures” or recesses shaped and spaced to receive sprockets on the sprocket wheel, thereby to apply pressure to the adhesive tape all around a sprocket hole. Initial adjustment of the roller during the start of each repair run may be used to assure that the sprockets are aligned with roller apertures. Alternatively, the pressure roller in the second roller may be grooved. Using a grooved roller has the advantage that the repair tape between sprocket holes is applied around each sprocket hole. A sprocket wheel at the repair station may be used to pull repair tape from a roll on a spindle for bonding onto perforated film fed directly from a supply reel through a guide to the sprocket wheel. A sponge rubber pressure roller on a spring loaded lever may be used to press the film onto the repair tape for pressure bonding. - The term “sponge rubber” is used herein, in a generic sense to refer to resilient, porous (closed cell) material used for the roller or may even be a soft rubber roller. Another example of a suitable material that may be used is a nitrile rubber that is commercially available, but any other nitrile rubber (a class of synthetic rubbers) may be used. All that is required is that the resilient material used be formed with closed cells to resemble a sponge, with sufficient density to permit the material, cut or formed into the shape of a roller, to function as a pressure roller while allowing the sprockets to penetrate into the material.
-
FIG. 4 is a flow chart of a method for pre-scanning film in accordance with the present invention. Atblock 400, the film is removed from its container and spooled into the pre-scan system. The film may be cut at this stage, however, it is envisioned that if film is to be rejected it would best be kept at its full length. Atblock 402, the film may be inspected visually by a user under infrared or near infrared light during the pre-scan using the one or more sensors of the present invention. Atblock 404, the status of the film is verified, that is, a determination is made whether remedial measures should be taken to bring the film into compliance with the DFP system requirements as compared to reference levels. Alternatively, the film may be rewound back into the canister and the reasons for the rejection of the film may be reported to the pre-scan apparatus operator. Atblock 406, the problem or problems, if any, are categorized and remedial measures are taken. - Examples of remedial measures include the use of vacuum/blower or tacky rollers to clean liquid and solid foreign object impurities from the film. Alternatively, the problem may be with broken, scratched, backward or bent film. If the sprockets are broken, for example, the film is directed into a tape dispenser that corrects for the loss of lateral support in the film for the images that are captured on the film. The lateral support for the images is most often necessary for the DFP process because of the need to maintain the film as flat as possible. The determination is made, at
block 408, whether the film has been repaired and if the remedial measures are sufficient for further processing or if the film must still be rejected. Atblock 410, the film is routed into the DFP system for further processing or the film is rejected from DFP and directed toward a regular chemical bath processing system. This may involve rewinding the film into the original canister or transferring the film to a holding location for manual removal. - Other embodiments of the present invention may include always cleaning the film and then inspecting the film, or performing the cleaning and inspection steps in an iterative manner. The results of the inspection may then be reported to an operator or recorded in some manner. If the film is rejected, it can be rolled back into the canister or stored in a new canister or storage device. Moreover, the present invention may report the specific reasons why the film was rejected and identify where on the film the problems were detected.
-
FIG. 5 is a schematic diagram offilm cleansing system 500 which can be used to efficiently clean film prior to digital film processing. Generally, the system includes aparticle removal member 502 which removes particles from thefilm 112, and acleaning system 510 which selectively cleans particles from theparticle removal member 502 as needed. - More specifically, in this exemplary embodiment, a pair of
particle removal members 502 are provided to remove particles, such as dust, lint, hair, particulate, and the like, from opposing surfaces of thefilm 112. In this example, theparticle removal members 502 comprise particle take-off (i.e., removal) rollers, and the film is fed between the tworollers 502. To feed thefilm 112 from thefilm canister 303 and through theserollers 502, any suitable film transportation system can be utilized, such as those which comprise nip rollers, sprockets, motors, belts, guides, conveyors, and the like, and which contact the film in order to transport the film in a predetermined path. As thefilm 112 makes contact with theparticle removal rollers 502 and moves therebetween, particles are transferred from the film to therollers 502. This can occur by providing therollers 502 with aparticle attraction surface 504 which removes the particles from thefilm 112. Thissurface 504 can comprise a tacky or adhesive surface to which the particles adhere as theroller 502 contacts thefilm 112. However, any suitableparticle attraction surface 504 may be utilized, such as those which attract particles through electric charge, suction force, magnetism, or any other suitable force. - As can be understood, the
particle removal members 502 will need periodic cleaning as film is moved therethrough and particles build thereon. Accordingly, acleaning system 510 can be used to selectively clean eachremoval member 502 when needed or desired. In this exemplary embodiment, eachcleaning system 510 includes a cleaningmember 512 for aparticle removal member 502. Each cleaningmember 512 is relatively movable with respect to its correspondingparticle removal member 502 such that it can move into and out of contact with the particle removal member, to selectively remove particles from the particle removal member. In this example, the cleaningmember 512 comprises a contact roller which can be moved or indexed between a non-contacting position (shown inFIG. 5 ) and a contacting position (shown inFIG. 6 ). When in the contacting position ofFIG. 6 , thecontact roller 512 removes particles from theparticle removal roller 502 and thereby cleans that roller. Accordingly, in the contacting position ofFIG. 6 , as theroller 502 rotates, thecontact roller 512 also rotates and the contact between theremoval roller 502 and the contact roller 512 (which can include a material over the roller) causes particles to be transferred from the removal roller to the contact roller, such that the removal roller is cleaned. - An adhesive or attractive force can be utilized to cause a
contact roller 512 to attract particles from aparticle removal roller 502, when in the contacting position ofFIG. 6 . For example, in the exemplary embodiment ofFIGS. 5 and 6 , anadhesive tape 514 is fed over thecontact roller 512 and used to attract the particles from theparticle removal roller 502. Accordingly, when aroller 512 is brought in contact with aparticle removal roller 502 for performing the cleaning process, thetape 514 is fed between therollers roller 502. In this way, theroller 502 is cleaned when needed or desired. - To move the
tape 514 over thecontact roller 512, any of a variety of suitable tape transport systems can be utilized. In this embodiment, the tape is supplied via asupply roll 516 and is wound onto a take-uproller 518. To transport thetape 514 from thesupply roll 516 to the take-uproller 518, a motor or other suitable actuator can be utilized. For example, the tape could be initially threaded from thesupply roll 516 over thecontact roller 512 and to the take-uproller 518, and the take-up roller can be rotated by a motor, such as a DC motor, a stepper motor, or any other suitable motor. However, other appropriate actuators, conveyors, rollers, and the like can be utilized to transport thetape 514. -
FIG. 5 illustrates the non-contacting position of eachcleaning system 510. In this position, theparticle removal rollers 502 remove particles from the opposing sides of thefilm 112 by contact with the film. Thefilm 112 then moves to the film processing equipment, such as the duplex scanning equipment described above for example, after being cleaned by theparticle removal rollers 502. However, particles build up on therollers 502 and it is desirable to easily clean theserollers 502 when needed or desired. - Accordingly, when cleaning of a
roller 502 is desired, acontact roller 512 is moved to the contacting position shown inFIG. 6 . This may occur when no film is being moved through thesystem 500 or when film is being moved through the system. In this exemplary embodiment, thecontact roller 512 is movable along a path, such as via a guide, between the two positions shown inFIGS. 5 and 6 . During cleaning of theroller 502, thetape 514 is moved from itscorresponding supply roll 516 to its take-uproller 518 and passes over itscorresponding contact roller 512. Accordingly, when acleaning system 510 is in the contacting position, thetape 514 of that system is positioned between thecontact roller 512 and theparticle removal roller 502, and is in contact with both of theserollers tape 514 is wound about the take-uproller 518 as the cleaning takes place. As thetape 514 moves past particle take-uproller 502, it collects particles from that roller, and thereby cleans the roller. Thetape 514 may be moved a predetermined distance, for a predetermined time, or for a predetermined number of revolutions of one of the rollers. As shown, twocleaning systems 510 can be provided to clean both particle removal members 502 (ifmultiple members 502 are utilized). - Once the cleaning is complete, the movement of the
tape 514 is stopped, and thecontact roller 512 is returned to the non-contacting position ofFIG. 5 . Periodic cleanings can occur until alltape 514 has been transferred from thesupply roll 516 to the take-uproller 518. At this time, thetape 514 on theroller 518 can be simply discarded, and anew supply roll 516 provided, such thatnew tape 514 can be threaded over thecontact roller 512 to the take-uproller 518. - Cleanings can be initiated by the user by moving the
contact roller 512 to the position ofFIG. 6 and beginning to wind thetape 514 about the take-uproller 518. These movements can be initiated under the power of motors or other actuators, such as discussed above. These movements can also be initiated automatically. For example, a controller can initiate the movements at predetermined times. In particular, the controller can sense when theparticle removal roller 502 has completed a given number of revolutions, and can then initiate the movements of thecleaning system 510 to clean theroller 502. Alternatively, the controller can sense the time that thefilm cleansing system 500 has been in operation since the last cleaning of therollers 502, or the number of film rolls cleaned since the last cleaning of therollers 502, and, upon reaching a predetermined maximum value, initiate the movements one or more of thecleaning systems 510 to clean therollers 502. -
FIGS. 7 and 8 illustrate one exemplary system for use in moving thecontact roller 512 from the non-contacting position to the contacting position. In this example, thecontact roller 512 is connected to ashaft 525 which is slidingly movable within aguide 524. Theshaft 525 of thatcontact roller 512 is connected to theshaft 519 of the take-uproller 518 via alink 522, such as a chain or belt for example. A biasingmember 520, such as a clock spring or spiral spring for example, provides a force which keeps thecontact roller 512 in the non-contacting position when not in use. When cleaning of aparticle removal member 502 is to commence, however, the motor or actuator connected to theshaft 519 of the take-uproller 518 is activated and causes theshaft 519 androller 518 to rotate. This rotation is transmitted via thelinkage 522 to cause simultaneous rotation of theshaft 525 andcontact roller 512. The torque produced by this rotation lowers thecontact roller 512 to the contacting position shown inFIG. 8 . The rotation also causes thetape 514 to move from thesupply roll 516, over thecontact roller 512, and to the take-uproller 518. During this movement of thetape 514, contact of thetape 514 with theparticle removal roller 502 cleans theroller 502. The motor which produces the motion of the rollers and the tape can be any of a variety of suitable motors, such as DC motors or stepper motors for example, and motion of the rollers can be accomplished via suitable linkages, gears, shafts, and related devices. A slip clutch can be provided to prevent torque overload of thecontact roller 512 against theparticle removal roller 502. The clutch can be sized and configured to slip once a predetermined maximum torque is reached (e.g., one pound-inch), in order to keep the load constant. - As also shown in
FIGS. 7 and 8 , acontroller 526 can be provided to activate the motor(s) which drive(s) therollers controller 526 senses the number of rotations of theparticle removal roller 502 via a sensor. Once a predetermined number of rotations is reached, thecontroller 526 transmits a signal to the motor to begin rotation of theshafts rollers tape 514. (Alternatively, thecontroller 526 could produce this signal after a predetermined amount of time has past or after a predetermined usage of thesystem 500 is sensed.) The torque produced by the rotations will overcome the force of the biasingmember 520 and move therollers 512 to the contacting position ofFIG. 8 . Thecontroller 526 can continue the cleaning for a predetermined period of time or for a predetermined number of rotations. Then, thecontroller 526 can cease the production of the activation signal to cause the rotation of therollers tape 514 to cease, to cause thecontact roller 512 to move back to the non-contacting position ofFIG. 7 via the force of the biasingmember 520, and to thereby cease the cleaning of theparticle removal roller 502. Thecontroller 520 can include suitable circuitry, hardware and/or software to produce the motor activation signal at the desired time. - All publications and patent applications mentioned in the specification are indicative of the level of skill of those skilled in the art to which this invention pertains. The entire disclosures of all publications and patent applications mentioned herein are hereby incorporated herein by reference to the same extent as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference.
- It is intended that the description of the present invention provided above is but one embodiment for implementing the invention. While specific alternatives to steps of the invention have been described herein, additional alternatives not specifically disclosed but known in the art are intended to fall within the scope of the invention. Moreover, variations in the description likely to be conceived of by those skilled in the art still fall within the breadth and scope of the disclosure of the present invention. Thus, it is understood that other applications of the present invention will be apparent to those skilled in the art upon the reading of the described embodiment and a consideration of the appended claims and drawings.
Claims (17)
1-33. (canceled)
34. An apparatus for cleaning film in a film processing system, comprising:
a particle removal member configured to remove particles from film;
a cleaning system automatically movable between a contacting position and a non-contacting position, wherein, in the contacting position, the cleaning system is configured to contact the particle removal member and remove particles therefrom, wherein the cleaning system is configured to automatically move from the non-contacting position to the contacting position at a predetermined time.
35. The apparatus as recited in claim 34 , wherein the particle removal member comprises a particle removal roller adapted to rotate as film is moved past the roller.
36. The apparatus as recited in claim 34 , wherein the particle removal member comprises an adhesive surface adapted for removing particles from the film as the film is moved past the member.
37. The apparatus as recited in claim 34 , wherein the cleaning system comprises:
an adhesive tape; and
a cleaning member comprising a contact roller in contact with the tape and movable between the contacting position and the non-contacting position.
38. The apparatus as recited in claim 34 , wherein the cleaning system comprises:
a cleaning member movable between the contacting position and the non-contacting position; and
a controller configured to cause the cleaning member to move between the contacting position and the non-contacting position at the predetermined time.
39. The apparatus as recited in claim 34 , wherein the particle removal member comprises a roller and the predetermined time comprises a predetermined number of rotations of the roller.
40. An apparatus for cleaning film in a film processing system, comprising:
a film transport system for moving film through a predetermined path:
a particle removal member configured to contact film and remove particles from the film as the film is moved through the predetermined path; and
a cleaning system configured to remove particles from the particle removal member, the cleaning system and the particle removal member being relatively movable so as to be selectively contactable with respect to each other, the cleaning system having a particle attraction surface operative to remove particles from the particle removal member when the cleaning system is in contact with the particle removal member.
41. The apparatus as recited in claim 40 , wherein the cleaning system comprises:
a disposable adhesive tape having the particle attraction surface; and
a cleaning member in contact with the tape.
42. The apparatus as recited in claim 41 , further comprising:
a tape transport system configured to move the tape over the cleaning member.
43. The apparatus as recited in claim 40 , wherein the particle removal member comprises a particle take-off roller, and wherein the cleaning system includes a contact roller relatively movable with respect to the particle take-off roller.
44. The apparatus as recited in claim 43 , wherein the cleaning system further comprises:
a disposable adhesive tape in contact with the contact roller and relatively movable with respect to the contact roller.
45. The apparatus as recited in claim 40 , wherein the cleaning system comprises
a cleaning member; and
a controller configured to cause the cleaning member to move relative to the particle removal member at a predetermined time.
46. The apparatus as recited in claim 45 , wherein the particle removal member comprises a roller and the predetermined time comprises a predetermined number of rotations of the roller.
47. An apparatus for cleaning film in a film processing system, comprising:
a particle removal member configured to remove particles from film;
a cleaning system comprising:
a disposable adhesive tape;
a cleaning member in contact with the tape and movable between a contacting position and a non-contacting position, wherein, in the contacting position, the cleaning member is configured to place the tape in contact the particle removal member such that the tape removes particles therefrom; and
a tape transport system for movement of the tape across the cleaning member.
48. The apparatus as recited in claim 47 , wherein the cleaning member comprises a contact roller and the particle removal member comprises a particle take-off roller.
49. The apparatus as recited in claim 47 , wherein the cleaning system further comprises:
a controller configured to cause the cleaning member to move between the contacting position and the non-contacting position at predetermined times.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/002,004 US20050128474A1 (en) | 1999-12-30 | 2004-12-02 | Method and apparatus to pre-scan and pre-treat film for improved digital film processing handling |
Applications Claiming Priority (3)
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US17364899P | 1999-12-30 | 1999-12-30 | |
US09/751,119 US6864973B2 (en) | 1999-12-30 | 2000-12-28 | Method and apparatus to pre-scan and pre-treat film for improved digital film processing handling |
US11/002,004 US20050128474A1 (en) | 1999-12-30 | 2004-12-02 | Method and apparatus to pre-scan and pre-treat film for improved digital film processing handling |
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US09/751,119 Division US6864973B2 (en) | 1999-12-30 | 2000-12-28 | Method and apparatus to pre-scan and pre-treat film for improved digital film processing handling |
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US20050128474A1 true US20050128474A1 (en) | 2005-06-16 |
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US11/002,004 Abandoned US20050128474A1 (en) | 1999-12-30 | 2004-12-02 | Method and apparatus to pre-scan and pre-treat film for improved digital film processing handling |
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US09/751,119 Expired - Fee Related US6864973B2 (en) | 1999-12-30 | 2000-12-28 | Method and apparatus to pre-scan and pre-treat film for improved digital film processing handling |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130215419A1 (en) * | 2012-02-22 | 2013-08-22 | Cooper S. K. Kuo | Optical inspection device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2817964B1 (en) * | 2000-12-11 | 2003-03-14 | Usinor | DEVICE FOR AUTOMATIC INSPECTION OF THE SURFACE OF A TRAVELING STRIP |
US6805501B2 (en) * | 2001-07-16 | 2004-10-19 | Eastman Kodak Company | System and method for digital film development using visible light |
US7515314B2 (en) * | 2002-10-28 | 2009-04-07 | Wen-Chao Tseng | Method for correcting negative film images |
US7030400B2 (en) * | 2003-12-30 | 2006-04-18 | Xerox Corporation | Real-time web inspection method and apparatus using combined reflected and transmitted light images |
KR101809009B1 (en) * | 2017-08-02 | 2017-12-15 | 주식회사 제덱스 | Apparatus for detecting materials on transparent or translucent film |
Citations (98)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2404138A (en) * | 1941-10-06 | 1946-07-16 | Alvin L Mayer | Apparatus for developing exposed photographic prints |
US3520690A (en) * | 1965-06-25 | 1970-07-14 | Fuji Photo Film Co Ltd | Process for controlling dye gradation in color photographic element |
US3520689A (en) * | 1965-06-16 | 1970-07-14 | Fuji Photo Film Co Ltd | Color developing process utilizing pyridinium salts |
US3587435A (en) * | 1969-04-24 | 1971-06-28 | Pat P Chioffe | Film processing machine |
US3615498A (en) * | 1967-07-29 | 1971-10-26 | Fuji Photo Film Co Ltd | Color developers containing substituted nbenzyl-p-aminophenol competing developing agents |
US3615479A (en) * | 1968-05-27 | 1971-10-26 | Itek Corp | Automatic film processing method and apparatus therefor |
US3617282A (en) * | 1970-05-18 | 1971-11-02 | Eastman Kodak Co | Nucleating agents for photographic reversal processes |
US3747120A (en) * | 1971-01-11 | 1973-07-17 | N Stemme | Arrangement of writing mechanisms for writing on paper with a coloredliquid |
US3833161A (en) * | 1972-02-08 | 1974-09-03 | Bosch Photokino Gmbh | Apparatus for intercepting and threading the leader of convoluted motion picture film or the like |
US3903541A (en) * | 1971-07-27 | 1975-09-02 | Meister Frederick W Von | Apparatus for processing printing plates precoated on one side only |
US3946398A (en) * | 1970-06-29 | 1976-03-23 | Silonics, Inc. | Method and apparatus for recording with writing fluids and drop projection means therefor |
US4081577A (en) * | 1973-12-26 | 1978-03-28 | American Hoechst Corporation | Pulsed spray of fluids |
US4142107A (en) * | 1977-06-30 | 1979-02-27 | International Business Machines Corporation | Resist development control system |
US4215927A (en) * | 1979-04-13 | 1980-08-05 | Scott Paper Company | Lithographic plate processing apparatus |
US4265545A (en) * | 1979-07-27 | 1981-05-05 | Intec Corporation | Multiple source laser scanning inspection system |
US4301469A (en) * | 1980-04-30 | 1981-11-17 | United Technologies Corporation | Run length encoder for color raster scanner |
US4501480A (en) * | 1981-10-16 | 1985-02-26 | Pioneer Electronic Corporation | System for developing a photo-resist material used as a recording medium |
US4564280A (en) * | 1982-10-28 | 1986-01-14 | Fujitsu Limited | Method and apparatus for developing resist film including a movable nozzle arm |
US4594598A (en) * | 1982-10-26 | 1986-06-10 | Sharp Kabushiki Kaisha | Printer head mounting assembly in an ink jet system printer |
US4621037A (en) * | 1984-07-09 | 1986-11-04 | Sigma Corporation | Method for detecting endpoint of development |
US4623236A (en) * | 1985-10-31 | 1986-11-18 | Polaroid Corporation | Photographic processing composition applicator |
US4636808A (en) * | 1985-09-09 | 1987-01-13 | Eastman Kodak Company | Continuous ink jet printer |
US4637088A (en) * | 1984-06-20 | 1987-01-20 | Badaracco John A | Tape cleaning machine |
US4666307A (en) * | 1984-01-19 | 1987-05-19 | Fuji Photo Film Co., Ltd. | Method for calibrating photographic image information |
US4670779A (en) * | 1984-01-10 | 1987-06-02 | Sharp Kabushiki Kaisha | Color-picture analyzing apparatus with red-purpose and green-purpose filters |
US4736221A (en) * | 1985-10-18 | 1988-04-05 | Fuji Photo Film Co., Ltd. | Method and device for processing photographic film using atomized liquid processing agents |
US4741621A (en) * | 1986-08-18 | 1988-05-03 | Westinghouse Electric Corp. | Geometric surface inspection system with dual overlap light stripe generator |
US4745040A (en) * | 1976-08-27 | 1988-05-17 | Levine Alfred B | Method for destructive electronic development of photo film |
US4755844A (en) * | 1985-04-30 | 1988-07-05 | Kabushiki Kaisha Toshiba | Automatic developing device |
US4777102A (en) * | 1976-08-27 | 1988-10-11 | Levine Alfred B | Method and apparatus for electronic development of color photographic film |
US4796061A (en) * | 1985-11-16 | 1989-01-03 | Dainippon Screen Mfg. Co., Ltd. | Device for detachably attaching a film onto a drum in a drum type picture scanning recording apparatus |
US4814630A (en) * | 1987-06-29 | 1989-03-21 | Ncr Corporation | Document illuminating apparatus using light sources A, B, and C in periodic arrays |
US4821114A (en) * | 1986-05-02 | 1989-04-11 | Dr. Ing. Rudolf Hell Gmbh | Opto-electronic scanning arrangement |
US4845551A (en) * | 1985-05-31 | 1989-07-04 | Fuji Photo Film Co., Ltd. | Method for correcting color photographic image data on the basis of calibration data read from a reference film |
US4851311A (en) * | 1987-12-17 | 1989-07-25 | Texas Instruments Incorporated | Process for determining photoresist develop time by optical transmission |
US4857430A (en) * | 1987-12-17 | 1989-08-15 | Texas Instruments Incorporated | Process and system for determining photoresist development endpoint by effluent analysis |
US4875067A (en) * | 1987-07-23 | 1989-10-17 | Fuji Photo Film Co., Ltd. | Processing apparatus |
US4969045A (en) * | 1988-05-20 | 1990-11-06 | Sanyo Electric Co., Ltd. | Image sensing apparatus having automatic iris function of automatically adjusting exposure in response to video signal |
US4994918A (en) * | 1989-04-28 | 1991-02-19 | Bts Broadcast Television Systems Gmbh | Method and circuit for the automatic correction of errors in image steadiness during film scanning |
US5027146A (en) * | 1989-08-31 | 1991-06-25 | Eastman Kodak Company | Processing apparatus |
US5034767A (en) * | 1987-08-28 | 1991-07-23 | Hanetz International Inc. | Development system |
US5101286A (en) * | 1990-03-21 | 1992-03-31 | Eastman Kodak Company | Scanning film during the film process for output to a video monitor |
US5124216A (en) * | 1990-07-31 | 1992-06-23 | At&T Bell Laboratories | Method for monitoring photoresist latent images |
US5155596A (en) * | 1990-12-03 | 1992-10-13 | Eastman Kodak Company | Film scanner illumination system having an automatic light control |
US5196285A (en) * | 1990-05-18 | 1993-03-23 | Xinix, Inc. | Method for control of photoresist develop processes |
US5200817A (en) * | 1991-08-29 | 1993-04-06 | Xerox Corporation | Conversion of an RGB color scanner into a colorimetric scanner |
US5212512A (en) * | 1990-11-30 | 1993-05-18 | Fuji Photo Film Co., Ltd. | Photofinishing system |
US5231439A (en) * | 1990-08-03 | 1993-07-27 | Fuji Photo Film Co., Ltd. | Photographic film handling method |
US5235352A (en) * | 1991-08-16 | 1993-08-10 | Compaq Computer Corporation | High density ink jet printhead |
US5296923A (en) * | 1991-01-09 | 1994-03-22 | Konica Corporation | Color image reproducing device and method |
US5334247A (en) * | 1991-07-25 | 1994-08-02 | Eastman Kodak Company | Coater design for low flowrate coating applications |
US5350651A (en) * | 1993-02-12 | 1994-09-27 | Eastman Kodak Company | Methods for the retrieval and differentiation of blue, green and red exposure records of the same hue from photographic elements containing absorbing interlayers |
US5350664A (en) * | 1993-02-12 | 1994-09-27 | Eastman Kodak Company | Photographic elements for producing blue, green, and red exposure records of the same hue and methods for the retrieval and differentiation of the exposure records |
US5357307A (en) * | 1992-11-25 | 1994-10-18 | Eastman Kodak Company | Apparatus for processing photosensitive material |
US5391443A (en) * | 1991-07-19 | 1995-02-21 | Eastman Kodak Company | Process for the extraction of spectral image records from dye image forming photographic elements |
US5414779A (en) * | 1993-06-14 | 1995-05-09 | Eastman Kodak Company | Image frame detection |
US5416550A (en) * | 1990-09-14 | 1995-05-16 | Eastman Kodak Company | Photographic processing apparatus |
US5418597A (en) * | 1992-09-14 | 1995-05-23 | Eastman Kodak Company | Clamping arrangement for film scanning apparatus |
US5418119A (en) * | 1993-07-16 | 1995-05-23 | Eastman Kodak Company | Photographic elements for producing blue, green and red exposure records of the same hue |
US5432579A (en) * | 1991-10-03 | 1995-07-11 | Fuji Photo Film Co., Ltd. | Photograph printing system |
US5436738A (en) * | 1992-01-22 | 1995-07-25 | Eastman Kodak Company | Three dimensional thermal internegative photographic printing apparatus and method |
US5440365A (en) * | 1993-10-14 | 1995-08-08 | Eastman Kodak Company | Photosensitive material processor |
US5447811A (en) * | 1992-09-24 | 1995-09-05 | Eastman Kodak Company | Color image reproduction of scenes with preferential tone mapping |
US5448380A (en) * | 1993-07-31 | 1995-09-05 | Samsung Electronics Co., Ltd. | color image processing method and apparatus for correcting a color signal from an input image device |
US5452018A (en) * | 1991-04-19 | 1995-09-19 | Sony Electronics Inc. | Digital color correction system having gross and fine adjustment modes |
US5496669A (en) * | 1992-07-01 | 1996-03-05 | Interuniversitair Micro-Elektronica Centrum Vzw | System for detecting a latent image using an alignment apparatus |
US5516608A (en) * | 1994-02-28 | 1996-05-14 | International Business Machines Corporation | Method for controlling a line dimension arising in photolithographic processes |
US5546477A (en) * | 1993-03-30 | 1996-08-13 | Klics, Inc. | Data compression and decompression |
US5550566A (en) * | 1993-07-15 | 1996-08-27 | Media Vision, Inc. | Video capture expansion card |
US5552904A (en) * | 1994-01-31 | 1996-09-03 | Samsung Electronics Co., Ltd. | Color correction method and apparatus using adaptive region separation |
US5563717A (en) * | 1995-02-03 | 1996-10-08 | Eastman Kodak Company | Method and means for calibration of photographic media using pre-exposed miniature images |
US5568270A (en) * | 1992-12-09 | 1996-10-22 | Fuji Photo Film Co., Ltd. | Image reading apparatus which varies reading time according to image density |
US5596415A (en) * | 1993-06-14 | 1997-01-21 | Eastman Kodak Company | Iterative predictor-based detection of image frame locations |
US5627016A (en) * | 1996-02-29 | 1997-05-06 | Eastman Kodak Company | Method and apparatus for photofinishing photosensitive film |
US5649260A (en) * | 1995-06-26 | 1997-07-15 | Eastman Kodak Company | Automated photofinishing apparatus |
US5664255A (en) * | 1996-05-29 | 1997-09-02 | Eastman Kodak Company | Photographic printing and processing apparatus |
US5664253A (en) * | 1995-09-12 | 1997-09-02 | Eastman Kodak Company | Stand alone photofinishing apparatus |
US5667944A (en) * | 1995-10-25 | 1997-09-16 | Eastman Kodak Company | Digital process sensitivity correction |
US5678116A (en) * | 1994-04-06 | 1997-10-14 | Dainippon Screen Mfg. Co., Ltd. | Method and apparatus for drying a substrate having a resist film with a miniaturized pattern |
US5726773A (en) * | 1994-11-29 | 1998-03-10 | Carl-Zeiss-Stiftung | Apparatus for scanning and digitizing photographic image objects and method of operating said apparatus |
US5739897A (en) * | 1994-08-16 | 1998-04-14 | Gretag Imaging Ag | Method and system for creating index prints on and/or with a photographic printer |
US5771107A (en) * | 1995-01-11 | 1998-06-23 | Mita Industrial Co., Ltd. | Image processor with image edge emphasizing capability |
US5790277A (en) * | 1994-06-08 | 1998-08-04 | International Business Machines Corporation | Duplex film scanning |
US5870172A (en) * | 1996-03-29 | 1999-02-09 | Blume; Stephen T. | Apparatus for producing a video and digital image directly from dental x-ray film |
US5880819A (en) * | 1995-06-29 | 1999-03-09 | Fuji Photo Film Co., Ltd. | Photographic film loading method, photographic film conveying apparatus, and image reading apparatus |
US5892595A (en) * | 1996-01-26 | 1999-04-06 | Ricoh Company, Ltd. | Image reading apparatus for correct positioning of color component values of each picture element |
US5930388A (en) * | 1996-10-24 | 1999-07-27 | Sharp Kabuskiki Kaisha | Color image processing apparatus |
US5959720A (en) * | 1996-03-22 | 1999-09-28 | Eastman Kodak Company | Method for color balance determination |
US5963662A (en) * | 1996-08-07 | 1999-10-05 | Georgia Tech Research Corporation | Inspection system and method for bond detection and validation of surface mount devices |
US5966465A (en) * | 1994-09-21 | 1999-10-12 | Ricoh Corporation | Compression/decompression using reversible embedded wavelets |
US6065824A (en) * | 1994-12-22 | 2000-05-23 | Hewlett-Packard Company | Method and apparatus for storing information on a replaceable ink container |
US6069714A (en) * | 1996-12-05 | 2000-05-30 | Applied Science Fiction, Inc. | Method and apparatus for reducing noise in electronic film development |
US6088084A (en) * | 1997-10-17 | 2000-07-11 | Fuji Photo Film Co., Ltd. | Original carrier and image reader |
US6089687A (en) * | 1998-03-09 | 2000-07-18 | Hewlett-Packard Company | Method and apparatus for specifying ink volume in an ink container |
US6101273A (en) * | 1995-10-31 | 2000-08-08 | Fuji Photo Film Co., Ltd. | Image reproducing method and apparatus |
US6102508A (en) * | 1996-09-27 | 2000-08-15 | Hewlett-Packard Company | Method and apparatus for selecting printer consumables |
US6137965A (en) * | 1998-12-22 | 2000-10-24 | Gid Gmbh | Container for developing equipment |
US6200738B1 (en) * | 1998-10-29 | 2001-03-13 | Konica Corporation | Image forming method |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3825755A (en) * | 1972-11-13 | 1974-07-23 | Infra Data Inc | Gauge for polymers |
US3959048A (en) | 1974-11-29 | 1976-05-25 | Stanfield James S | Apparatus and method for repairing elongated flexible strips having damaged sprocket feed holes along the edge thereof |
US4026756A (en) | 1976-03-19 | 1977-05-31 | Stanfield James S | Apparatus for repairing elongated flexible strips having damaged sprocket feed holes along the edge thereof |
US4249985A (en) | 1979-03-05 | 1981-02-10 | Stanfield James S | Pressure roller for apparatus useful in repairing sprocket holes on strip material |
US4490729A (en) | 1982-09-15 | 1984-12-25 | The Mead Corporation | Ink jet printer |
US4687943A (en) * | 1985-01-18 | 1987-08-18 | Research Technology International | Optical motion picture film inspection system |
US5267030A (en) | 1989-12-22 | 1993-11-30 | Eastman Kodak Company | Method and associated apparatus for forming image data metrics which achieve media compatibility for subsequent imaging application |
GB9100194D0 (en) | 1991-01-05 | 1991-02-20 | Ilford Ltd | Roll film assembly |
US5255408A (en) | 1992-02-11 | 1993-10-26 | Eastman Kodak Company | Photographic film cleaner |
US5266805A (en) | 1992-05-05 | 1993-11-30 | International Business Machines Corporation | System and method for image recovery |
US5371542A (en) | 1992-06-23 | 1994-12-06 | The United States Of America As Represented By The Secretary Of The Navy | Dual waveband signal processing system |
CA2093449C (en) | 1992-07-17 | 1997-06-17 | Albert D. Edgar | Electronic film development |
CA2093840C (en) | 1992-07-17 | 1999-08-10 | Albert D. Edgar | Duplex film scanning |
JPH07125902A (en) | 1993-10-29 | 1995-05-16 | Minolta Co Ltd | Image printer |
FR2721418B1 (en) * | 1994-06-15 | 1996-08-14 | Kodak Pathe | Method and device for counting and characterizing defects on a photographic medium. |
JPH0877341A (en) | 1994-08-29 | 1996-03-22 | Xerox Corp | Equipment and method for color image processing |
JP3136965B2 (en) | 1995-08-31 | 2001-02-19 | ノーリツ鋼機株式会社 | Photosensitive material processing equipment |
US5695914A (en) | 1995-09-15 | 1997-12-09 | Eastman Kodak Company | Process of forming a dye image |
US5698382A (en) | 1995-09-25 | 1997-12-16 | Konica Corporation | Processing method for silver halide color photographic light-sensitive material |
US5691118A (en) | 1996-10-10 | 1997-11-25 | Eastman Kodak Company | Color paper processing using two acidic stop solutions before and after bleaching |
-
2000
- 2000-12-28 US US09/751,119 patent/US6864973B2/en not_active Expired - Fee Related
-
2004
- 2004-12-02 US US11/002,004 patent/US20050128474A1/en not_active Abandoned
Patent Citations (99)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2404138A (en) * | 1941-10-06 | 1946-07-16 | Alvin L Mayer | Apparatus for developing exposed photographic prints |
US3520689A (en) * | 1965-06-16 | 1970-07-14 | Fuji Photo Film Co Ltd | Color developing process utilizing pyridinium salts |
US3520690A (en) * | 1965-06-25 | 1970-07-14 | Fuji Photo Film Co Ltd | Process for controlling dye gradation in color photographic element |
US3615498A (en) * | 1967-07-29 | 1971-10-26 | Fuji Photo Film Co Ltd | Color developers containing substituted nbenzyl-p-aminophenol competing developing agents |
US3615479A (en) * | 1968-05-27 | 1971-10-26 | Itek Corp | Automatic film processing method and apparatus therefor |
US3587435A (en) * | 1969-04-24 | 1971-06-28 | Pat P Chioffe | Film processing machine |
US3617282A (en) * | 1970-05-18 | 1971-11-02 | Eastman Kodak Co | Nucleating agents for photographic reversal processes |
US3946398A (en) * | 1970-06-29 | 1976-03-23 | Silonics, Inc. | Method and apparatus for recording with writing fluids and drop projection means therefor |
US3747120A (en) * | 1971-01-11 | 1973-07-17 | N Stemme | Arrangement of writing mechanisms for writing on paper with a coloredliquid |
US3903541A (en) * | 1971-07-27 | 1975-09-02 | Meister Frederick W Von | Apparatus for processing printing plates precoated on one side only |
US3833161A (en) * | 1972-02-08 | 1974-09-03 | Bosch Photokino Gmbh | Apparatus for intercepting and threading the leader of convoluted motion picture film or the like |
US4081577A (en) * | 1973-12-26 | 1978-03-28 | American Hoechst Corporation | Pulsed spray of fluids |
US4777102A (en) * | 1976-08-27 | 1988-10-11 | Levine Alfred B | Method and apparatus for electronic development of color photographic film |
US4745040A (en) * | 1976-08-27 | 1988-05-17 | Levine Alfred B | Method for destructive electronic development of photo film |
US4142107A (en) * | 1977-06-30 | 1979-02-27 | International Business Machines Corporation | Resist development control system |
US4215927A (en) * | 1979-04-13 | 1980-08-05 | Scott Paper Company | Lithographic plate processing apparatus |
US4265545A (en) * | 1979-07-27 | 1981-05-05 | Intec Corporation | Multiple source laser scanning inspection system |
US4301469A (en) * | 1980-04-30 | 1981-11-17 | United Technologies Corporation | Run length encoder for color raster scanner |
US4501480A (en) * | 1981-10-16 | 1985-02-26 | Pioneer Electronic Corporation | System for developing a photo-resist material used as a recording medium |
US4594598A (en) * | 1982-10-26 | 1986-06-10 | Sharp Kabushiki Kaisha | Printer head mounting assembly in an ink jet system printer |
US4564280A (en) * | 1982-10-28 | 1986-01-14 | Fujitsu Limited | Method and apparatus for developing resist film including a movable nozzle arm |
US4670779A (en) * | 1984-01-10 | 1987-06-02 | Sharp Kabushiki Kaisha | Color-picture analyzing apparatus with red-purpose and green-purpose filters |
US4666307A (en) * | 1984-01-19 | 1987-05-19 | Fuji Photo Film Co., Ltd. | Method for calibrating photographic image information |
US4637088A (en) * | 1984-06-20 | 1987-01-20 | Badaracco John A | Tape cleaning machine |
US4621037A (en) * | 1984-07-09 | 1986-11-04 | Sigma Corporation | Method for detecting endpoint of development |
US4755844A (en) * | 1985-04-30 | 1988-07-05 | Kabushiki Kaisha Toshiba | Automatic developing device |
US4845551A (en) * | 1985-05-31 | 1989-07-04 | Fuji Photo Film Co., Ltd. | Method for correcting color photographic image data on the basis of calibration data read from a reference film |
US4636808A (en) * | 1985-09-09 | 1987-01-13 | Eastman Kodak Company | Continuous ink jet printer |
US4736221A (en) * | 1985-10-18 | 1988-04-05 | Fuji Photo Film Co., Ltd. | Method and device for processing photographic film using atomized liquid processing agents |
US4623236A (en) * | 1985-10-31 | 1986-11-18 | Polaroid Corporation | Photographic processing composition applicator |
US4796061A (en) * | 1985-11-16 | 1989-01-03 | Dainippon Screen Mfg. Co., Ltd. | Device for detachably attaching a film onto a drum in a drum type picture scanning recording apparatus |
US4821114A (en) * | 1986-05-02 | 1989-04-11 | Dr. Ing. Rudolf Hell Gmbh | Opto-electronic scanning arrangement |
US4741621A (en) * | 1986-08-18 | 1988-05-03 | Westinghouse Electric Corp. | Geometric surface inspection system with dual overlap light stripe generator |
US4814630A (en) * | 1987-06-29 | 1989-03-21 | Ncr Corporation | Document illuminating apparatus using light sources A, B, and C in periodic arrays |
US4875067A (en) * | 1987-07-23 | 1989-10-17 | Fuji Photo Film Co., Ltd. | Processing apparatus |
US5034767A (en) * | 1987-08-28 | 1991-07-23 | Hanetz International Inc. | Development system |
US4851311A (en) * | 1987-12-17 | 1989-07-25 | Texas Instruments Incorporated | Process for determining photoresist develop time by optical transmission |
US4857430A (en) * | 1987-12-17 | 1989-08-15 | Texas Instruments Incorporated | Process and system for determining photoresist development endpoint by effluent analysis |
US4969045A (en) * | 1988-05-20 | 1990-11-06 | Sanyo Electric Co., Ltd. | Image sensing apparatus having automatic iris function of automatically adjusting exposure in response to video signal |
US4994918A (en) * | 1989-04-28 | 1991-02-19 | Bts Broadcast Television Systems Gmbh | Method and circuit for the automatic correction of errors in image steadiness during film scanning |
US5027146A (en) * | 1989-08-31 | 1991-06-25 | Eastman Kodak Company | Processing apparatus |
US5101286A (en) * | 1990-03-21 | 1992-03-31 | Eastman Kodak Company | Scanning film during the film process for output to a video monitor |
US5292605A (en) * | 1990-05-18 | 1994-03-08 | Xinix, Inc. | Method for control of photoresist develop processes |
US5196285A (en) * | 1990-05-18 | 1993-03-23 | Xinix, Inc. | Method for control of photoresist develop processes |
US5124216A (en) * | 1990-07-31 | 1992-06-23 | At&T Bell Laboratories | Method for monitoring photoresist latent images |
US5231439A (en) * | 1990-08-03 | 1993-07-27 | Fuji Photo Film Co., Ltd. | Photographic film handling method |
US5416550A (en) * | 1990-09-14 | 1995-05-16 | Eastman Kodak Company | Photographic processing apparatus |
US5212512A (en) * | 1990-11-30 | 1993-05-18 | Fuji Photo Film Co., Ltd. | Photofinishing system |
US5155596A (en) * | 1990-12-03 | 1992-10-13 | Eastman Kodak Company | Film scanner illumination system having an automatic light control |
US5296923A (en) * | 1991-01-09 | 1994-03-22 | Konica Corporation | Color image reproducing device and method |
US5452018A (en) * | 1991-04-19 | 1995-09-19 | Sony Electronics Inc. | Digital color correction system having gross and fine adjustment modes |
US5391443A (en) * | 1991-07-19 | 1995-02-21 | Eastman Kodak Company | Process for the extraction of spectral image records from dye image forming photographic elements |
US5334247A (en) * | 1991-07-25 | 1994-08-02 | Eastman Kodak Company | Coater design for low flowrate coating applications |
US5235352A (en) * | 1991-08-16 | 1993-08-10 | Compaq Computer Corporation | High density ink jet printhead |
US5200817A (en) * | 1991-08-29 | 1993-04-06 | Xerox Corporation | Conversion of an RGB color scanner into a colorimetric scanner |
US5432579A (en) * | 1991-10-03 | 1995-07-11 | Fuji Photo Film Co., Ltd. | Photograph printing system |
US5436738A (en) * | 1992-01-22 | 1995-07-25 | Eastman Kodak Company | Three dimensional thermal internegative photographic printing apparatus and method |
US5496669A (en) * | 1992-07-01 | 1996-03-05 | Interuniversitair Micro-Elektronica Centrum Vzw | System for detecting a latent image using an alignment apparatus |
US5418597A (en) * | 1992-09-14 | 1995-05-23 | Eastman Kodak Company | Clamping arrangement for film scanning apparatus |
US5447811A (en) * | 1992-09-24 | 1995-09-05 | Eastman Kodak Company | Color image reproduction of scenes with preferential tone mapping |
US5357307A (en) * | 1992-11-25 | 1994-10-18 | Eastman Kodak Company | Apparatus for processing photosensitive material |
US5568270A (en) * | 1992-12-09 | 1996-10-22 | Fuji Photo Film Co., Ltd. | Image reading apparatus which varies reading time according to image density |
US5350664A (en) * | 1993-02-12 | 1994-09-27 | Eastman Kodak Company | Photographic elements for producing blue, green, and red exposure records of the same hue and methods for the retrieval and differentiation of the exposure records |
US5350651A (en) * | 1993-02-12 | 1994-09-27 | Eastman Kodak Company | Methods for the retrieval and differentiation of blue, green and red exposure records of the same hue from photographic elements containing absorbing interlayers |
US5546477A (en) * | 1993-03-30 | 1996-08-13 | Klics, Inc. | Data compression and decompression |
US5596415A (en) * | 1993-06-14 | 1997-01-21 | Eastman Kodak Company | Iterative predictor-based detection of image frame locations |
US5414779A (en) * | 1993-06-14 | 1995-05-09 | Eastman Kodak Company | Image frame detection |
US5550566A (en) * | 1993-07-15 | 1996-08-27 | Media Vision, Inc. | Video capture expansion card |
US5418119A (en) * | 1993-07-16 | 1995-05-23 | Eastman Kodak Company | Photographic elements for producing blue, green and red exposure records of the same hue |
US5448380A (en) * | 1993-07-31 | 1995-09-05 | Samsung Electronics Co., Ltd. | color image processing method and apparatus for correcting a color signal from an input image device |
US5440365A (en) * | 1993-10-14 | 1995-08-08 | Eastman Kodak Company | Photosensitive material processor |
US5552904A (en) * | 1994-01-31 | 1996-09-03 | Samsung Electronics Co., Ltd. | Color correction method and apparatus using adaptive region separation |
US5516608A (en) * | 1994-02-28 | 1996-05-14 | International Business Machines Corporation | Method for controlling a line dimension arising in photolithographic processes |
US5678116A (en) * | 1994-04-06 | 1997-10-14 | Dainippon Screen Mfg. Co., Ltd. | Method and apparatus for drying a substrate having a resist film with a miniaturized pattern |
US5790277A (en) * | 1994-06-08 | 1998-08-04 | International Business Machines Corporation | Duplex film scanning |
US5739897A (en) * | 1994-08-16 | 1998-04-14 | Gretag Imaging Ag | Method and system for creating index prints on and/or with a photographic printer |
US5966465A (en) * | 1994-09-21 | 1999-10-12 | Ricoh Corporation | Compression/decompression using reversible embedded wavelets |
US5726773A (en) * | 1994-11-29 | 1998-03-10 | Carl-Zeiss-Stiftung | Apparatus for scanning and digitizing photographic image objects and method of operating said apparatus |
US6065824A (en) * | 1994-12-22 | 2000-05-23 | Hewlett-Packard Company | Method and apparatus for storing information on a replaceable ink container |
US5771107A (en) * | 1995-01-11 | 1998-06-23 | Mita Industrial Co., Ltd. | Image processor with image edge emphasizing capability |
US5563717A (en) * | 1995-02-03 | 1996-10-08 | Eastman Kodak Company | Method and means for calibration of photographic media using pre-exposed miniature images |
US5649260A (en) * | 1995-06-26 | 1997-07-15 | Eastman Kodak Company | Automated photofinishing apparatus |
US5880819A (en) * | 1995-06-29 | 1999-03-09 | Fuji Photo Film Co., Ltd. | Photographic film loading method, photographic film conveying apparatus, and image reading apparatus |
US5664253A (en) * | 1995-09-12 | 1997-09-02 | Eastman Kodak Company | Stand alone photofinishing apparatus |
US5667944A (en) * | 1995-10-25 | 1997-09-16 | Eastman Kodak Company | Digital process sensitivity correction |
US6101273A (en) * | 1995-10-31 | 2000-08-08 | Fuji Photo Film Co., Ltd. | Image reproducing method and apparatus |
US5892595A (en) * | 1996-01-26 | 1999-04-06 | Ricoh Company, Ltd. | Image reading apparatus for correct positioning of color component values of each picture element |
US5627016A (en) * | 1996-02-29 | 1997-05-06 | Eastman Kodak Company | Method and apparatus for photofinishing photosensitive film |
US5959720A (en) * | 1996-03-22 | 1999-09-28 | Eastman Kodak Company | Method for color balance determination |
US5870172A (en) * | 1996-03-29 | 1999-02-09 | Blume; Stephen T. | Apparatus for producing a video and digital image directly from dental x-ray film |
US5664255A (en) * | 1996-05-29 | 1997-09-02 | Eastman Kodak Company | Photographic printing and processing apparatus |
US5963662A (en) * | 1996-08-07 | 1999-10-05 | Georgia Tech Research Corporation | Inspection system and method for bond detection and validation of surface mount devices |
US6102508A (en) * | 1996-09-27 | 2000-08-15 | Hewlett-Packard Company | Method and apparatus for selecting printer consumables |
US5930388A (en) * | 1996-10-24 | 1999-07-27 | Sharp Kabuskiki Kaisha | Color image processing apparatus |
US6069714A (en) * | 1996-12-05 | 2000-05-30 | Applied Science Fiction, Inc. | Method and apparatus for reducing noise in electronic film development |
US6088084A (en) * | 1997-10-17 | 2000-07-11 | Fuji Photo Film Co., Ltd. | Original carrier and image reader |
US6089687A (en) * | 1998-03-09 | 2000-07-18 | Hewlett-Packard Company | Method and apparatus for specifying ink volume in an ink container |
US6200738B1 (en) * | 1998-10-29 | 2001-03-13 | Konica Corporation | Image forming method |
US6137965A (en) * | 1998-12-22 | 2000-10-24 | Gid Gmbh | Container for developing equipment |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130215419A1 (en) * | 2012-02-22 | 2013-08-22 | Cooper S. K. Kuo | Optical inspection device |
Also Published As
Publication number | Publication date |
---|---|
US6864973B2 (en) | 2005-03-08 |
US20020018201A1 (en) | 2002-02-14 |
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