ES2118854T3 - Procesador de señal de video que emplea analisis de elementos de imagen. - Google Patents
Procesador de señal de video que emplea analisis de elementos de imagen.Info
- Publication number
- ES2118854T3 ES2118854T3 ES93107943T ES93107943T ES2118854T3 ES 2118854 T3 ES2118854 T3 ES 2118854T3 ES 93107943 T ES93107943 T ES 93107943T ES 93107943 T ES93107943 T ES 93107943T ES 2118854 T3 ES2118854 T3 ES 2118854T3
- Authority
- ES
- Spain
- Prior art keywords
- video
- range
- video signal
- processing
- samples
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Television Receiver Circuits (AREA)
- Image Processing (AREA)
Abstract
SE ENVIA UNA SEÑAL DE VIDEO A PROCESAR A UN PROCESADOR NO LINEAL QUE TENGA UNA GANANCIA AJUSTABLE LA CUAL RESPONDE A UNA SEÑAL DE CONTROL EN AL MENOS UNA PORCION DE LA GAMA DE AMPLITUD DE LA SEÑAL DE ENTRADA DE VIDEO. UN CIRCUITO DE MUESTREO, QUE RESPONDE A LA SEÑAL DE VIDEO, GENERA MUESTRAS DE VIDEO SEGUN EL NUMERO DE MUESTRAS QUE SE ENCUENTRAN EN POR LO MENOS UNA GAMA DE AMPLITUD DADA CON LO QUE CONTROLA EL PORCENTAJE DE MUESTRAS DE UNA GAMA DADA EN LAS IMAGENES VISUALIZADAS. PUEDE HABER UNA PLURALIDAD DE CIRCUITOS DE CONTROL Y DE MUESTREO LOS CUALES CONTROLAN EL PROCESAMIENTO DE LA COMPRESION DEL BLANCO, EL PROCESAMIENTO DE LA COMPRESION DEL NEGRO Y EL PROCESAMIENTO DEL PUNTO MEDIO DE VIDEO PARA AUMENTAR EL CONTRASTE A TRAVES DE TODA LA GAMA DE SEÑALES DE VIDEO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88745392A | 1992-05-22 | 1992-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2118854T3 true ES2118854T3 (es) | 1998-10-01 |
Family
ID=25391166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93107943T Expired - Lifetime ES2118854T3 (es) | 1992-05-22 | 1993-05-15 | Procesador de señal de video que emplea analisis de elementos de imagen. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5422680A (es) |
EP (1) | EP0570873B1 (es) |
JP (1) | JP3563087B2 (es) |
KR (1) | KR100276369B1 (es) |
CN (1) | CN1037223C (es) |
DE (1) | DE69319960T2 (es) |
ES (1) | ES2118854T3 (es) |
MY (1) | MY109269A (es) |
SG (1) | SG63564A1 (es) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6184969B1 (en) * | 1994-10-25 | 2001-02-06 | James L. Fergason | Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement |
CA2222289A1 (en) * | 1995-05-31 | 1996-12-05 | Telefonaktiebolaget Lm Ericsson | Local control enhancement in a telecommunications system |
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 |
EP0963111A1 (en) * | 1998-06-02 | 1999-12-08 | Deutsche Thomson-Brandt Gmbh | Method and apparatus for dynamic contrast improvement in video pictures |
EP0963112B1 (en) * | 1998-06-02 | 2004-04-21 | Deutsche Thomson-Brandt Gmbh | Method and apparatus for dynamic contrast improvement in video pictures |
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 |
KR20050040849A (ko) * | 2001-11-01 | 2005-05-03 | 톰슨 라이센싱 에스.에이. | 동적 콘트라스트 개선 방법 |
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 |
JP4757201B2 (ja) * | 2003-12-18 | 2011-08-24 | シャープ株式会社 | 液晶ディスプレイのためのダイナミックガンマ |
US7612757B2 (en) | 2004-05-04 | 2009-11-03 | Sharp Laboratories Of America, Inc. | Liquid crystal display with modulated black point |
US7532192B2 (en) | 2004-05-04 | 2009-05-12 | Sharp Laboratories Of America, Inc. | Liquid crystal display with filtered black point |
US8395577B2 (en) | 2004-05-04 | 2013-03-12 | Sharp Laboratories Of America, Inc. | Liquid crystal display with illumination control |
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 |
US7777714B2 (en) | 2004-05-04 | 2010-08-17 | Sharp Laboratories Of America, Inc. | Liquid crystal display with adaptive width |
US7023451B2 (en) * | 2004-06-14 | 2006-04-04 | Sharp Laboratories Of America, Inc. | System for reducing crosstalk |
US7556836B2 (en) | 2004-09-03 | 2009-07-07 | Solae, Llc | High protein snack product |
DE102004042792B3 (de) * | 2004-09-03 | 2006-06-08 | Siemens Ag | Verfahren zur Verbesserung der Darstellung von CT-Aufnahmen |
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 |
US8203574B2 (en) * | 2005-09-30 | 2012-06-19 | Nxp B.V. | Dynamic softclipping of video levels |
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 |
US9143657B2 (en) | 2006-01-24 | 2015-09-22 | Sharp Laboratories Of America, Inc. | Color enhancement technique using skin color detection |
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 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 (es) * | 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 |
-
1993
- 1993-05-15 ES ES93107943T patent/ES2118854T3/es not_active Expired - Lifetime
- 1993-05-15 DE DE69319960T patent/DE69319960T2/de not_active Expired - Lifetime
- 1993-05-15 EP EP93107943A patent/EP0570873B1/en not_active Expired - Lifetime
- 1993-05-15 SG SG1996002592A patent/SG63564A1/en unknown
- 1993-05-21 MY MYPI93000952A patent/MY109269A/en unknown
- 1993-05-21 CN CN93107314A patent/CN1037223C/zh not_active Expired - Fee Related
- 1993-05-22 KR KR1019930008881A patent/KR100276369B1/ko not_active IP Right Cessation
- 1993-05-24 JP JP14562093A patent/JP3563087B2/ja not_active Expired - Fee Related
-
1994
- 1994-08-24 US US08/296,074 patent/US5422680A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0570873B1 (en) | 1998-07-29 |
DE69319960T2 (de) | 1998-12-10 |
CN1086066A (zh) | 1994-04-27 |
KR930024445A (ko) | 1993-12-22 |
KR100276369B1 (ko) | 2000-12-15 |
SG63564A1 (en) | 1999-03-30 |
CN1037223C (zh) | 1998-01-28 |
JP3563087B2 (ja) | 2004-09-08 |
EP0570873A3 (es) | 1994-02-16 |
DE69319960D1 (de) | 1998-09-03 |
US5422680A (en) | 1995-06-06 |
EP0570873A2 (en) | 1993-11-24 |
JPH0698278A (ja) | 1994-04-08 |
MY109269A (en) | 1996-12-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2118854T3 (es) | Procesador de señal de video que emplea analisis de elementos de imagen. | |
KR940005091A (ko) | 영상 신호 합성 장치 및 그 방법 | |
ES2096568T3 (es) | Un sistema de video dinamico que incluye secciones de tratamiento del contraste automatico y de "extension del blanco". | |
KR850002198A (ko) | 다이나믹 신호 코어링회로 | |
FR2384402A1 (fr) | Generateur d'effets speciaux de television | |
FR2400809A1 (fr) | Dispositif a effet video numerique | |
US3535443A (en) | X-ray image viewing apparatus | |
KR840000144A (ko) | 칼라 텔레비젼 신호의 수평 및 수직 영상 세부처리 | |
KR830004025A (ko) | 비데오 영상 수직미세정보의 비선형 처리장치 | |
KR910019463A (ko) | 비디오 신호 처리장치 | |
ATE29192T1 (de) | Bildverarbeitungseinrichtung. | |
SE8003336L (sv) | Anordning for vertikaldetaljaterstellning och -stegring i en videobild | |
KR850006821A (ko) | 순차주사용 비데오신호 처리기 | |
KR950029804A (ko) | 2판넬 액정프로젝터의 신호처리장치 및 그 방법 | |
KR920022876A (ko) | 비선형 휘도 신호 프로세서를 구비한 텔레비젼 수상기 | |
DE3782845D1 (de) | Einrichtung zur untertitelung von fernsehsignalen. | |
JPH0263271A (ja) | 映像信号処理回路 | |
DE3876358D1 (de) | Schaltungsanordnung zur bearbeitung von videokomponenten. | |
KR870000823A (ko) | 텔레비전의 화면윤곽 강조회로 | |
KR850000861A (ko) | 영상 신호 처리장치 | |
KR850004001A (ko) | 수직 디테일 비데오 신호 처리용 장치 | |
KR910008709A (ko) | 영상잡음저감회로 | |
GB2002196A (en) | Polar scanning and electronic processing of thermal images | |
Berger | A high speed processor for binary images | |
Hallows | Electronic brightness contouring |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 570873 Country of ref document: ES |