DE69319960T2 - Nichtlineare Video-Signalprozessor unter Verwendung von Bildelementanalyse - Google Patents

Nichtlineare Video-Signalprozessor unter Verwendung von Bildelementanalyse

Info

Publication number
DE69319960T2
DE69319960T2 DE69319960T DE69319960T DE69319960T2 DE 69319960 T2 DE69319960 T2 DE 69319960T2 DE 69319960 T DE69319960 T DE 69319960T DE 69319960 T DE69319960 T DE 69319960T DE 69319960 T2 DE69319960 T2 DE 69319960T2
Authority
DE
Germany
Prior art keywords
video signal
signal processor
pixel analysis
nonlinear video
nonlinear
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69319960T
Other languages
English (en)
Other versions
DE69319960D1 (de
Inventor
William Adamson Lagoni
Albert Paul Pica
James Russell Bergen
Todd J Christopher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics Inc
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
Application filed by Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Publication of DE69319960D1 publication Critical patent/DE69319960D1/de
Application granted granted Critical
Publication of DE69319960T2 publication Critical patent/DE69319960T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
DE69319960T 1992-05-22 1993-05-15 Nichtlineare Video-Signalprozessor unter Verwendung von Bildelementanalyse Expired - Lifetime DE69319960T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88745392A 1992-05-22 1992-05-22

Publications (2)

Publication Number Publication Date
DE69319960D1 DE69319960D1 (de) 1998-09-03
DE69319960T2 true DE69319960T2 (de) 1998-12-10

Family

ID=25391166

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69319960T Expired - Lifetime DE69319960T2 (de) 1992-05-22 1993-05-15 Nichtlineare Video-Signalprozessor unter Verwendung von Bildelementanalyse

Country Status (9)

Country Link
US (1) US5422680A (de)
EP (1) EP0570873B1 (de)
JP (1) JP3563087B2 (de)
KR (1) KR100276369B1 (de)
CN (1) CN1037223C (de)
DE (1) DE69319960T2 (de)
ES (1) ES2118854T3 (de)
MY (1) MY109269A (de)
SG (1) SG63564A1 (de)

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US6414664B1 (en) * 1997-11-13 2002-07-02 Honeywell Inc. Method of and apparatus for controlling contrast of liquid crystal displays while receiving large dynamic range video
EP0963112B1 (de) * 1998-06-02 2004-04-21 Deutsche Thomson-Brandt Gmbh Verfahren und Vorrichtung zur dynamischen Kontrastverbesserung in Videobildern
EP0963111A1 (de) * 1998-06-02 1999-12-08 Deutsche Thomson-Brandt Gmbh Verfahren und Vorrichtung zur dynamischen Kontrastverbesserung in Videobildern
KR100346840B1 (ko) 1999-11-04 2002-08-03 삼성전자 주식회사 화면의 펄럭거림을 최소화하는 흑신장 장치 및 그 방법
JP3685029B2 (ja) * 2000-10-04 2005-08-17 セイコーエプソン株式会社 液晶表示装置、画像信号補正回路、液晶表示装置の駆動方法、および画像信号補正方法、ならびに電子機器
KR100865246B1 (ko) * 2001-03-06 2008-10-27 코닌클리케 필립스 일렉트로닉스 엔.브이. 비디오 신호 강화 방법 및 유닛과 이를 사용하는디스플레이 장치
JP2004519921A (ja) * 2001-03-06 2004-07-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ ビデオ信号強調方法並びにこの方法を用いるユニット及び表示装置
KR100421016B1 (ko) * 2001-10-13 2004-03-04 삼성전자주식회사 비디오 신호의 흑신장 제어 장치 및 방법
JP4420385B2 (ja) * 2001-11-01 2010-02-24 トムソン ライセンシング 動的コントラスト改善方法
US7064740B2 (en) 2001-11-09 2006-06-20 Sharp Laboratories Of America, Inc. Backlit display with improved dynamic range
GB0130652D0 (en) * 2001-12-21 2002-02-06 Bae Systems Plc Improvements in or relating to low light level imaging devices
US7042522B2 (en) * 2002-08-01 2006-05-09 Samsung Electronics Co., Ltd. Adaptive contrast enhancement method using time-varying nonlinear transforms on a video signal
US8243004B2 (en) 2003-03-10 2012-08-14 Fergason Patent Properties, Llc Apparatus and method for preparing, storing, transmitting and displaying images
WO2005052673A2 (en) 2003-11-21 2005-06-09 Sharp Laboratories Of America, Inc. Liquid crystal display with adaptive color
US7164284B2 (en) * 2003-12-18 2007-01-16 Sharp Laboratories Of America, Inc. Dynamic gamma for a liquid crystal display
US7777714B2 (en) 2004-05-04 2010-08-17 Sharp Laboratories Of America, Inc. Liquid crystal display with adaptive width
US8395577B2 (en) 2004-05-04 2013-03-12 Sharp Laboratories Of America, Inc. Liquid crystal display with illumination control
US7612757B2 (en) 2004-05-04 2009-11-03 Sharp Laboratories Of America, Inc. Liquid crystal display with modulated black point
US7505018B2 (en) 2004-05-04 2009-03-17 Sharp Laboratories Of America, Inc. Liquid crystal display with reduced black level insertion
US7872631B2 (en) 2004-05-04 2011-01-18 Sharp Laboratories Of America, Inc. Liquid crystal display with temporal black point
US7532192B2 (en) 2004-05-04 2009-05-12 Sharp Laboratories Of America, Inc. Liquid crystal display with filtered black point
US7023451B2 (en) * 2004-06-14 2006-04-04 Sharp Laboratories Of America, Inc. System for reducing crosstalk
DE102004042792B3 (de) * 2004-09-03 2006-06-08 Siemens Ag Verfahren zur Verbesserung der Darstellung von CT-Aufnahmen
US7556836B2 (en) 2004-09-03 2009-07-07 Solae, Llc High protein snack product
US7898519B2 (en) * 2005-02-17 2011-03-01 Sharp Laboratories Of America, Inc. Method for overdriving a backlit display
US8050511B2 (en) * 2004-11-16 2011-11-01 Sharp Laboratories Of America, Inc. High dynamic range images from low dynamic range images
US8050512B2 (en) 2004-11-16 2011-11-01 Sharp Laboratories Of America, Inc. High dynamic range images from low dynamic range images
US7525528B2 (en) 2004-11-16 2009-04-28 Sharp Laboratories Of America, Inc. Technique that preserves specular highlights
CN101406038B (zh) * 2005-09-30 2011-02-23 Nxp股份有限公司 视频电平的动态柔性削峰
US9143657B2 (en) 2006-01-24 2015-09-22 Sharp Laboratories Of America, Inc. Color enhancement technique using skin color detection
US8121401B2 (en) 2006-01-24 2012-02-21 Sharp Labortories of America, Inc. Method for reducing enhancement of artifacts and noise in image color enhancement
US20080049129A1 (en) * 2006-08-28 2008-02-28 Meacham James H Imaging device with improved signal to noise performance
US8941580B2 (en) 2006-11-30 2015-01-27 Sharp Laboratories Of America, Inc. Liquid crystal display with area adaptive backlight
JP4853337B2 (ja) * 2007-03-09 2012-01-11 ソニー株式会社 信号変換装置
US8483508B2 (en) * 2008-08-19 2013-07-09 Kabushiki Kaisha Toshiba Digital image tone adjustment

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US2760008A (en) * 1950-08-30 1956-08-21 Rca Corp Amplifier having controllable signal expansion and compression characteristics
GB2046051B (en) * 1979-03-29 1983-01-26 Philips Electronic Associated Real time histogram modification system for image processing
FR2456448A1 (fr) * 1979-05-11 1980-12-05 Thomson Csf Dispositif de commande automatique de la fonction de transfert d'un systeme de transmission videofrequence en vue d'ameliorer la perception des images
JPS56107674A (en) * 1980-01-31 1981-08-26 Sony Corp Gradation correcting device of video signal
US4403253A (en) * 1981-12-28 1983-09-06 General Electric Company Uniform distribution video processor with controlled reference voltages
US4589022A (en) * 1983-11-28 1986-05-13 General Electric Company Brightness control system for CRT video display
JPH0411432Y2 (de) * 1985-03-30 1992-03-23
JP2527592B2 (ja) * 1988-02-25 1996-08-28 三洋電機株式会社 撮像装置
US4829381A (en) * 1988-04-18 1989-05-09 Polaroid Corporation System and method for electronic image enhancement by dynamic pixel transformation
JPH031772A (ja) * 1989-05-30 1991-01-08 Sony Corp 撮像装置
US5003394A (en) * 1989-08-25 1991-03-26 Rca Licensing Corporation Dynamic video system including automatic contrast and "white-stretch" processing sections
JPH0437263A (ja) * 1990-05-31 1992-02-07 Matsushita Electric Ind Co Ltd 階調補正装置
JPH04183177A (ja) * 1990-11-19 1992-06-30 Matsushita Electric Ind Co Ltd 累積ヒストグラム回路および補間回路および画質補正回路

Also Published As

Publication number Publication date
CN1037223C (zh) 1998-01-28
JPH0698278A (ja) 1994-04-08
CN1086066A (zh) 1994-04-27
MY109269A (en) 1996-12-31
US5422680A (en) 1995-06-06
KR100276369B1 (ko) 2000-12-15
SG63564A1 (en) 1999-03-30
DE69319960D1 (de) 1998-09-03
ES2118854T3 (es) 1998-10-01
EP0570873A3 (de) 1994-02-16
EP0570873B1 (de) 1998-07-29
KR930024445A (ko) 1993-12-22
EP0570873A2 (de) 1993-11-24
JP3563087B2 (ja) 2004-09-08

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Legal Events

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8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)