WO2003021957A1 - Method for modifying the content of a television image - Google Patents

Method for modifying the content of a television image Download PDF

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Publication number
WO2003021957A1
WO2003021957A1 PCT/FI2002/000706 FI0200706W WO03021957A1 WO 2003021957 A1 WO2003021957 A1 WO 2003021957A1 FI 0200706 W FI0200706 W FI 0200706W WO 03021957 A1 WO03021957 A1 WO 03021957A1
Authority
WO
WIPO (PCT)
Prior art keywords
television
modified
image
image signal
transmitted
Prior art date
Application number
PCT/FI2002/000706
Other languages
French (fr)
Inventor
Erkki Rantalainen
Sami Sinkko
Original Assignee
Oy Virtual Advertising Systems Vas Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FI20011750A external-priority patent/FI20011750A0/en
Priority claimed from FI20011988A external-priority patent/FI20011988A0/en
Application filed by Oy Virtual Advertising Systems Vas Ltd filed Critical Oy Virtual Advertising Systems Vas Ltd
Publication of WO2003021957A1 publication Critical patent/WO2003021957A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H60/00Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/68Systems specially adapted for using specific information, e.g. geographical or meteorological information
    • H04H60/73Systems specially adapted for using specific information, e.g. geographical or meteorological information using meta-information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H20/00Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/10Arrangements for replacing or switching information during the broadcast or the distribution
    • H04H20/106Receiver-side switching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21Server components or server architectures
    • H04N21/218Source of audio or video content, e.g. local disk arrays
    • H04N21/2187Live feed
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866Management of end-user data
    • H04N21/25891Management of end-user data being end-user preferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4331Caching operations, e.g. of an advertisement for later insertion during playback
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/458Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81Monomedia components thereof
    • H04N21/812Monomedia components thereof involving advertisement data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment
    • H04N5/262Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272Means for inserting a foreground image in a background image, i.e. inlay, outlay
    • H04N5/2723Insertion of virtual advertisement; Replacing advertisements physical present in the scene by virtual advertisement
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/162Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing

Definitions

  • the present invention relates to a method as defined in the preamble of claim 1 for modifying the content of a television image.
  • 01/58147 discloses a method for modifying the image of a visible object shot by a television camera.
  • the object to be imaged is marked by means of a marking surface which can be identified on the basis of radiation differing from other radiation in the area to be imaged, the radiation of at least one of said marking surfaces differing from the environment in respect of a property other than the color of visible light.
  • a marking surface which can be identified on the basis of radiation differing from other radiation in the area to be imaged, the radiation of at least one of said marking surfaces differing from the environment in respect of a property other than the color of visible light.
  • at least one identifying detector separate from the detectors of the television camera is used, said detector imaging the object from substantially the same direction as the television camera is shooting.
  • the relation between the image coordinate systems of the television camera and the identifying detector is determined and the areas visible in the television picture of the object are determined by the aid of the marking surfaces detected.
  • the image signal for the television image areas corresponding to the object is modified in a predetermined manner and
  • the object of the invention is to eliminate the above-mentioned drawbacks.
  • a specific object of the invention is to disclose a new type of selection method that allows individual, even spectator-specific modification of television broadcasts.
  • an event is imaged by at least one camera and the image signal produced by the camera is transmitted to spectators ' receivers to present the event .
  • po- sition data for the television image area to be modified is transmitted, and said position data, together with the image information used in the modification and the information controlling the modification, is fed to a separate modification device.
  • the spectators are grouped using certain criteria to form spectator groups so that the image signal can be modified in a manner selected separately for each group.
  • the image signal can be transmitted and the event presented in a desired form appropriately modified for a spectator group meeting certain criteria.
  • distinctive information regarding the area is also transmitted.
  • information about the content of this area to be modified or other information relating to it is also received, on the basis of which it will be possible to know at what juncture the area in question is to be modified, i.e. replaced with other image data.
  • image material it will be known what image material is to be used for the modification, i.e. what is to be shown instead of the original image .
  • image signals about the same event are modified simultaneously, and the signals are transmitted and presented to different spectator groups.
  • the image signal is modified e.g.
  • the image signal can be modified in a manner consistent with the legislation, common good practice, religion and/or traditions prevailing in the region concerned.
  • advertisements on these products can be replaced with other advertisements as appropriate.
  • some ethical or religious groups do not approve of advertising of certain goods, so such advertisements can be replaced with acceptable ones.
  • the image signal to be transmitted can also be modified specifically for each television company, for each Internet server, for each television receiver, or the image signal can even be modified in a spectator-specific manner.
  • the image signal is preferably modified for a given homogeneous spectator group, which is formed on the basis of spectator interviews, inquiries, gallup polls and/or other information collected.
  • suitable spectator groups or even individual spectators can supply basic information according to which the broadcasts are to be modified, taking the spectators' interests and negative associations into account.
  • the substituting image information to be used in the modification can be supplied to the modification device over a television broadcasting network, over the Internet, over a wireless telephone network or over a wired telephone network.
  • the image information may also be supplied together with the program being transmitted.
  • a further possibility is to transmit and load the image information to the modification device beforehand. In this way, the actual transmission from the scene of the event to all receiving parties consists of an identical image signal, and the image signal is modified into the desired form e.g. specifically for each country by means of the modification devices.
  • the television image contains changing, transient and moving visual ob- structions hiding the image area to be modified.
  • an athletic performance, an athlete or a vehicle partially hides an advertisement in the background from view.
  • a masking image is formed, from which a separate image signal is generated.
  • the image in the background can be replaced and the athletic performance taking place in front of it can be shown unchanged.
  • the method of the invention is preferably used in direct television broadcasts, in other words, the image signal is transmitted and presented on television as a direct telecast.
  • recordings as post-telecasts, in which case the modifications can be made in connection with the broadcast or even earlier at a suitable stage.
  • An- other possibility is to use the modified image signal in mobile telephones and/or on the Internet.
  • the method of the invention has significant advantages.
  • the method of the invention makes it possible to freely choose and modify advertisements in television broadcasts by taking aspects of the spectatorship into account. In this way, advertisers will avoid troublesome and annoying contacts with the public or, on the other hand, if such contacts are expressly sought, then that, too, will be easy to achieve via selective advertising according to the invention.
  • illegal hidden advertising can be held in check by the method of the invention, because every advertisement visible e.g. at a given sports happening can, if desirable, be replaced with another, allowed advertisement or removed altogether by showing only a void surface of suitable color in its place.
  • An event is imaged by a television camera 1 and simultaneously the image area is observed by means of auxiliary equipment 2 to identify the image portions to be modified.
  • the auxiliary equipment may consist of e.g. beam splitters and infrared cameras.
  • the generation of the information controlling the modification of the image takes place in the same way as the generation of the television signal.
  • the television signal 4 is packed with the modification signal to be transmitted together, and received and decoded 5 at the receiving end, which may consist of a country-specific, regional or even receiver-specific reception system.
  • the signal to be used for the modification can also be transmitted by a separate route and/or as a separate signal along with the television signal to the target.
  • both the television image signal and the information needed for the modification i.e. information specifying the positions of the areas to be replaced in the broadcast.
  • the control information also comprises data indicating when and what change is to be made in each specific area. In other words, for example in an ice hockey match, it is possible to show a different advertisement in a given advertising area during each period, and again different advertisements can be shown during the rest periods .
  • the replacing content material 7 is transmit- ted e.g. beforehand to each receiver group.
  • the areas to be replaced or modified may be different for different receiver groups.
  • the same television image signal is transmitted to each receiver group, regardless of whether that group consists of an individual person or a large country.
  • the image signal is modified into a desired form and after the modification the image signal 8 thus modified for a given spectator group is transmitted.

Abstract

A method for modifying the content of a television image in a television broadcast, in which an event is imaged using at least one camera and the image signal produced by the camera is transmitted to spectators' television receivers to present the event. In the method, position data defining the television image area to be modified is transmitted along with the image signal transmitted by the camera shooting the event, which position data, together with the image information to be used for the modification and the information controlling the modification, is supplied to a separate modification device, the spectators are grouped using certain criteria to form spectator groups, the image signal is modified in a manner chosen separately for each group, and the image signal is transmitted and the event is presented to a selected spectator group.

Description

METHOD FOR MODIFYING THE CONTENT OF A TELEVISION IMAGE
The present invention relates to a method as defined in the preamble of claim 1 for modifying the content of a television image. International patent application WO-A1-
01/58147 discloses a method for modifying the image of a visible object shot by a television camera. In the method, the object to be imaged is marked by means of a marking surface which can be identified on the basis of radiation differing from other radiation in the area to be imaged, the radiation of at least one of said marking surfaces differing from the environment in respect of a property other than the color of visible light. For identification of the marking surface, at least one identifying detector separate from the detectors of the television camera is used, said detector imaging the object from substantially the same direction as the television camera is shooting. The relation between the image coordinate systems of the television camera and the identifying detector is determined and the areas visible in the television picture of the object are determined by the aid of the marking surfaces detected. Next, the image signal for the television image areas corresponding to the object is modified in a predetermined manner and the partially modified image signal is transmitted.
When the method described above is used, producing and transmitting several parallel television broadcasts is difficult and expensive due to the lim- ited transmission capacity. However, there is a general need for increasing individuality even in television broadcasts.
The object of the invention is to eliminate the above-mentioned drawbacks. A specific object of the invention is to disclose a new type of selection method that allows individual, even spectator-specific modification of television broadcasts. As for the features of the invention, reference is made to the claims.
In the method of the invention for modifying the content of a television image in a television broadcast, an event is imaged by at least one camera and the image signal produced by the camera is transmitted to spectators ' receivers to present the event . According to the invention, along with the image signal transmitted by the camera shooting the event, po- sition data for the television image area to be modified is transmitted, and said position data, together with the image information used in the modification and the information controlling the modification, is fed to a separate modification device. In addition, the spectators are grouped using certain criteria to form spectator groups so that the image signal can be modified in a manner selected separately for each group. Thus, the image signal can be transmitted and the event presented in a desired form appropriately modified for a spectator group meeting certain criteria.
Together with the position data for the area to be modified, distinctive information regarding the area is also transmitted. Thus, while the exact posi- tion in the image of the area to be modified is known, information about the content of this area to be modified or other information relating to it is also received, on the basis of which it will be possible to know at what juncture the area in question is to be modified, i.e. replaced with other image data. Likewise, based on the distinctive information, it will be known what image material is to be used for the modification, i.e. what is to be shown instead of the original image . In a preferred case, several different image signals about the same event are modified simultaneously, and the signals are transmitted and presented to different spectator groups. The image signal is modified e.g. specifically for the region in question, e.g. for each country, so the image signal can be modified in a manner consistent with the legislation, common good practice, religion and/or traditions prevailing in the region concerned. Thus, e.g. in broadcasts to countries where the advertising of tobacco and/or alcohol is forbidden, advertisements on these products can be replaced with other advertisements as appropriate. Similarly, in certain countries some ethical or religious groups do not approve of advertising of certain goods, so such advertisements can be replaced with acceptable ones.
Thus, the image signal to be transmitted can also be modified specifically for each television company, for each Internet server, for each television receiver, or the image signal can even be modified in a spectator-specific manner.
The image signal is preferably modified for a given homogeneous spectator group, which is formed on the basis of spectator interviews, inquiries, gallup polls and/or other information collected. Thus, suitable spectator groups or even individual spectators can supply basic information according to which the broadcasts are to be modified, taking the spectators' interests and negative associations into account. As a survey, it will be sufficient to carry out e.g. a quick inquiry on spectator attitudes to different advertisements or sets of advertisements, to establish whether the attitudes are positive, neutral or negative .
In an embodiment, it is even possible to carry out only receiver-specific inquiries to establish which programs and at what times on different days are watched on the receiver in question. On the basis of this information, a spectator chart for the receiver in question is then formed, said chart indi- eating the average degree of interest in different subjects on the part of the spectators watching broadcasts on that receiver at different times.
The substituting image information to be used in the modification can be supplied to the modification device over a television broadcasting network, over the Internet, over a wireless telephone network or over a wired telephone network. The image information may also be supplied together with the program being transmitted. A further possibility is to transmit and load the image information to the modification device beforehand. In this way, the actual transmission from the scene of the event to all receiving parties consists of an identical image signal, and the image signal is modified into the desired form e.g. specifically for each country by means of the modification devices.
It often happens that the television image contains changing, transient and moving visual ob- structions hiding the image area to be modified. For example, an athletic performance, an athlete or a vehicle partially hides an advertisement in the background from view. In this case, from the visual obstructions hiding from view the area to be modified, a masking image is formed, from which a separate image signal is generated. In this way, the image in the background can be replaced and the athletic performance taking place in front of it can be shown unchanged. The method of the invention is preferably used in direct television broadcasts, in other words, the image signal is transmitted and presented on television as a direct telecast. Naturally it is also possible to use recordings as post-telecasts, in which case the modifications can be made in connection with the broadcast or even earlier at a suitable stage. An- other possibility is to use the modified image signal in mobile telephones and/or on the Internet.
As compared with prior art, the method of the invention has significant advantages. The method of the invention makes it possible to freely choose and modify advertisements in television broadcasts by taking aspects of the spectatorship into account. In this way, advertisers will avoid troublesome and annoying contacts with the public or, on the other hand, if such contacts are expressly sought, then that, too, will be easy to achieve via selective advertising according to the invention. Moreover, illegal hidden advertising can be held in check by the method of the invention, because every advertisement visible e.g. at a given sports happening can, if desirable, be replaced with another, allowed advertisement or removed altogether by showing only a void surface of suitable color in its place.
In the following, the invention will be de- scribed in detail by referring to the attached drawing, which presents a diagram of a system applying the method of the invention.
An event is imaged by a television camera 1 and simultaneously the image area is observed by means of auxiliary equipment 2 to identify the image portions to be modified. The auxiliary equipment may consist of e.g. beam splitters and infrared cameras. At the transmitting end 3, the generation of the information controlling the modification of the image takes place in the same way as the generation of the television signal.
The television signal 4 is packed with the modification signal to be transmitted together, and received and decoded 5 at the receiving end, which may consist of a country-specific, regional or even receiver-specific reception system. The signal to be used for the modification can also be transmitted by a separate route and/or as a separate signal along with the television signal to the target.
At the image modification stage 6, both the television image signal and the information needed for the modification, i.e. information specifying the positions of the areas to be replaced in the broadcast, are received. The control information also comprises data indicating when and what change is to be made in each specific area. In other words, for example in an ice hockey match, it is possible to show a different advertisement in a given advertising area during each period, and again different advertisements can be shown during the rest periods .
The replacing content material 7 is transmit- ted e.g. beforehand to each receiver group. Thus, the areas to be replaced or modified may be different for different receiver groups.
Thus, in the method of the invention, the same television image signal is transmitted to each receiver group, regardless of whether that group consists of an individual person or a large country. On a group-specific basis, using the received modification information and group-specific content material, the image signal is modified into a desired form and after the modification the image signal 8 thus modified for a given spectator group is transmitted.
In the foregoing, the invention has been described in detail by the aid of the attached diagram while different embodiments of the invention are pos- sible within the scope defined in the claims.

Claims

1. Method for modifying the content of a television image in a television broadcast, in which an event is imaged using at least one camera and the image signal produced by the camera is transmitted to spectators' television receivers to present the event, characterized in that, in the method, along with the image signal transmitted by the camera shooting the event, position data defining the television image area to be modified is transmitted, image information to be used for the modification and information controlling the modification are supplied to a separate modification device, - the spectators are grouped using certain criteria to form spectator groups, the image signal is modified in a manner chosen separately for each group, and the image signal is transmitted and the event is presented to a selected spectator group.
2. Method according to claim 1, charac teri zed in that distinctive information regarding the area to be modified is transmitted in connection with the position data.
3. Method according to claim 1, charac terized in that several different image signals about the same event are modified simultaneously, and the signals are transmitted and presented to different spectator groups.
4. Method according to claim 1, charac teri zed in that the image signal is modified specifically for each region, e.g. for each country.
5. Method according to claim 4, charac terized in that the image signal is modified in a manner consistent with the legislation, common good practice, religion and/or traditions prevailing in the region concerned.
6. Method according to claim 1, charac teri zed in that the image signal is modified specifically for each television company.
7. Method according to claim 1, charac - terized in that the television signal is modified specifically for each Internet server.
8. Method according to claim 1, charac terized in that the television signal is modified specifically for each television receiver.
9. Method according to claim 1, charac teri zed in that the television signal is modified specifically for each spectator.
10. Method according to claim 1, charac teri zed in that the image signal is modified for a given homogeneous spectator group, which is formed on the basis of spectator interviews, inquiries, gallup polls and/or other information collected.
11. Method according to claim 1, charac teri zed in that the substituting information to be used for the modification is supplied to the modification device over a television broadcasting network, over the Internet, over a wireless telephone network or over a wired telephone network.
12. Method according to claim 11, charac - terized in that the image information is supplied during the program being transmitted.
13. Method according to claim 11, charac terized in that the image information is transmitted and loaded to the modification device before- hand.
14. Method according to claim 1, charac teri zed in that a masking image is formed from visual obstructions hiding the television image area to be modified, and a separate image signal is gener- ated from said masking image.
15. Method as defined in any one of claims 1 - 14, characteri zed in that the image signal is transmitted and presented on television as a direct broadcast .
16. Method as defined in any one of claims 1 - 14, characterized in that the modified image signal is used in mobile telephones and/or on the Internet .
PCT/FI2002/000706 2001-09-03 2002-09-02 Method for modifying the content of a television image WO2003021957A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI20011750 2001-09-03
FI20011750A FI20011750A0 (en) 2001-09-03 2001-09-03 Television image processing
FI20011988 2001-10-12
FI20011988A FI20011988A0 (en) 2001-10-12 2001-10-12 Geographic processing of a TV image

Publications (1)

Publication Number Publication Date
WO2003021957A1 true WO2003021957A1 (en) 2003-03-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2002/000706 WO2003021957A1 (en) 2001-09-03 2002-09-02 Method for modifying the content of a television image

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Country Link
WO (1) WO2003021957A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1999644A1 (en) * 2005-11-14 2008-12-10 Clive Barton-Grimley Layered information technology
EP2232845A1 (en) * 2007-12-13 2010-09-29 Supponor Systems Ltd. A method for modifying the content of a television image

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5513854A (en) * 1993-04-19 1996-05-07 Daver; Gil J. G. System used for real time acquistion of data pertaining to persons in motion
US5592236A (en) * 1995-06-01 1997-01-07 International Business Machines Corporation Method and apparatus for overlaying two video signals using an input-lock
WO1997002699A1 (en) * 1995-06-30 1997-01-23 Fox Sports Productions, Inc. A system for enhancing the television presentation of an object at a sporting event
US6266100B1 (en) * 1998-09-04 2001-07-24 Sportvision, Inc. System for enhancing a video presentation of a live event
WO2001058147A1 (en) * 2000-01-31 2001-08-09 Erkki Rantalainen Method for modifying a visible object shot with a television camera

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5513854A (en) * 1993-04-19 1996-05-07 Daver; Gil J. G. System used for real time acquistion of data pertaining to persons in motion
US5592236A (en) * 1995-06-01 1997-01-07 International Business Machines Corporation Method and apparatus for overlaying two video signals using an input-lock
WO1997002699A1 (en) * 1995-06-30 1997-01-23 Fox Sports Productions, Inc. A system for enhancing the television presentation of an object at a sporting event
US6266100B1 (en) * 1998-09-04 2001-07-24 Sportvision, Inc. System for enhancing a video presentation of a live event
WO2001058147A1 (en) * 2000-01-31 2001-08-09 Erkki Rantalainen Method for modifying a visible object shot with a television camera

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1999644A1 (en) * 2005-11-14 2008-12-10 Clive Barton-Grimley Layered information technology
EP2232845A1 (en) * 2007-12-13 2010-09-29 Supponor Systems Ltd. A method for modifying the content of a television image
EP2232845A4 (en) * 2007-12-13 2011-06-01 Supponor Oy A method for modifying the content of a television image

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