WO2000060566A1 - Image quality correcting circuit - Google Patents
Image quality correcting circuit Download PDFInfo
- Publication number
- WO2000060566A1 WO2000060566A1 PCT/JP2000/001872 JP0001872W WO0060566A1 WO 2000060566 A1 WO2000060566 A1 WO 2000060566A1 JP 0001872 W JP0001872 W JP 0001872W WO 0060566 A1 WO0060566 A1 WO 0060566A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unit
- correction
- image quality
- output
- value
- Prior art date
Links
- 238000010586 diagram Methods 0.000 claims abstract description 25
- 230000001629 suppression Effects 0.000 claims description 67
- 238000000034 method Methods 0.000 claims description 9
- 230000001934 delay Effects 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 claims 4
- 238000003702 image correction Methods 0.000 claims 1
- 238000009826 distribution Methods 0.000 description 20
- 230000006866 deterioration Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- 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
-
- G06T5/92—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing 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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU33290/00A AU769305B2 (en) | 1999-03-31 | 2000-03-27 | Image quality correcting circuit |
CA002333622A CA2333622A1 (en) | 1999-03-31 | 2000-03-27 | Image quality correcting circuit |
US09/700,495 US7012625B1 (en) | 1999-03-31 | 2000-03-27 | Image quality correcting circuit |
EP00911390A EP1085494A4 (en) | 1999-03-31 | 2000-03-27 | IMAGE QUALITY CORRECTION CIRCUIT |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP09201499A JP4590043B2 (ja) | 1999-03-31 | 1999-03-31 | 画質補正回路 |
JP11/92014 | 1999-03-31 | ||
JP11/280633 | 1999-09-30 | ||
JP28063399A JP2001103338A (ja) | 1999-09-30 | 1999-09-30 | 画質補正回路 |
JP30922499A JP2001125535A (ja) | 1999-10-29 | 1999-10-29 | 画質補正回路 |
JP11/309224 | 1999-10-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000060566A1 true WO2000060566A1 (en) | 2000-10-12 |
Family
ID=27306907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/001872 WO2000060566A1 (en) | 1999-03-31 | 2000-03-27 | Image quality correcting circuit |
Country Status (8)
Country | Link |
---|---|
US (1) | US7012625B1 (ja) |
EP (1) | EP1085494A4 (ja) |
KR (1) | KR100732014B1 (ja) |
CN (1) | CN1163057C (ja) |
AU (1) | AU769305B2 (ja) |
CA (1) | CA2333622A1 (ja) |
TW (1) | TW531721B (ja) |
WO (1) | WO2000060566A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040040699A (ko) * | 2002-11-07 | 2004-05-13 | 삼성전자주식회사 | 콘트라스트 보정 장치 및 방법 |
KR100513273B1 (ko) * | 2003-07-04 | 2005-09-09 | 이디텍 주식회사 | 동영상 신호의 실시간 밝기 제어 장치 및 방법 |
US20050212726A1 (en) * | 2004-03-16 | 2005-09-29 | Pioneer Plasma Display Corporation | Method, display apparatus and burn-in reduction device for reducing burn-in on display device |
JP2006101421A (ja) * | 2004-09-30 | 2006-04-13 | Toshiba Corp | 映像信号処理回路 |
JP2006154452A (ja) * | 2004-11-30 | 2006-06-15 | Toshiba Corp | 映像信号処理装置とグラデーション段差検出方法 |
JP4325552B2 (ja) * | 2004-12-24 | 2009-09-02 | セイコーエプソン株式会社 | 画像処理装置、画像処理方法及び画像処理プログラム |
JP4533330B2 (ja) * | 2005-04-12 | 2010-09-01 | キヤノン株式会社 | 画像形成装置及び画像形成方法 |
JP2006319634A (ja) * | 2005-05-12 | 2006-11-24 | Toshiba Corp | 映像信号処理装置とグラデーション段差検出方法 |
JP4240023B2 (ja) | 2005-08-31 | 2009-03-18 | ソニー株式会社 | 撮像装置、撮像方法および撮像プログラム、ならびに、画像処理装置、画像処理方法および画像処理プログラム |
JP4389882B2 (ja) * | 2006-01-27 | 2009-12-24 | セイコーエプソン株式会社 | 発光装置、画像処理装置および電子機器 |
JP5196731B2 (ja) * | 2006-04-20 | 2013-05-15 | キヤノン株式会社 | 画像処理装置及び画像処理方法 |
JP4198720B2 (ja) * | 2006-05-17 | 2008-12-17 | Necエレクトロニクス株式会社 | 表示装置、表示パネルドライバ、及び表示パネルの駆動方法 |
JP4795473B2 (ja) | 2009-06-29 | 2011-10-19 | キヤノン株式会社 | 画像処理装置及びその制御方法 |
JP5884060B2 (ja) | 2010-08-26 | 2016-03-15 | パナソニックIpマネジメント株式会社 | 映像表示制御装置 |
JP5868119B2 (ja) * | 2010-12-09 | 2016-02-24 | キヤノン株式会社 | 画像処理装置、放射線撮影システム、画像処理方法及び記録媒体 |
TWI483555B (zh) * | 2011-12-15 | 2015-05-01 | Silicon Motion Inc | 測試裝置以及類比至數位轉換器之測試方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6339280A (ja) * | 1986-08-04 | 1988-02-19 | Mitsubishi Electric Corp | 画像処理装置 |
JPS6339280B2 (ja) | 1983-01-14 | 1988-08-04 | Yoshiro Nakamatsu | |
JPH03255785A (ja) * | 1990-03-06 | 1991-11-14 | Konica Corp | 画像処理装置 |
GB2281674A (en) | 1993-09-03 | 1995-03-08 | Matsushita Electric Ind Co Ltd | Digital image contrast conversion |
JPH07162715A (ja) * | 1993-12-10 | 1995-06-23 | Fujitsu General Ltd | デジタルガンマ補正方法 |
JPH07281633A (ja) * | 1994-04-06 | 1995-10-27 | Fujitsu General Ltd | 電子ディスプレイの映像表示処理方法およびその装置 |
JPH089197A (ja) * | 1994-06-20 | 1996-01-12 | Fujitsu General Ltd | 画像表示装置 |
JPH08317250A (ja) * | 1995-05-19 | 1996-11-29 | Fujitsu General Ltd | ダイナミック映像制御回路 |
US5808697A (en) | 1995-06-16 | 1998-09-15 | Mitsubishi Denki Kabushiki Kaisha | Video contrast enhancer |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4979136A (en) * | 1988-03-01 | 1990-12-18 | Transitions Research Corporation | Processing system and method for enhancing image data |
JPH06339280A (ja) * | 1993-05-27 | 1994-12-06 | Hitachi Ltd | 電力変換器の低損失スナバ回路 |
JPH0823460A (ja) * | 1994-07-11 | 1996-01-23 | Fujitsu General Ltd | ダイナミックガンマ補正回路 |
JP3003561B2 (ja) * | 1995-09-25 | 2000-01-31 | 松下電器産業株式会社 | 階調変換方法及びその回路と画像表示方法及びその装置と画像信号変換装置 |
KR100213094B1 (ko) * | 1997-02-21 | 1999-08-02 | 윤종용 | 영상 개선장치를 위한 히스토그램 및 cdf 추출방법 및 그 회로 |
JP3267200B2 (ja) * | 1997-07-11 | 2002-03-18 | 松下電器産業株式会社 | 画像処理装置 |
US6504954B1 (en) * | 1999-02-05 | 2003-01-07 | Raytheon Company | Closed loop piecewise-linear histogram specification method and apparatus |
-
2000
- 2000-03-27 WO PCT/JP2000/001872 patent/WO2000060566A1/ja active IP Right Grant
- 2000-03-27 EP EP00911390A patent/EP1085494A4/en not_active Withdrawn
- 2000-03-27 CN CNB008004242A patent/CN1163057C/zh not_active Expired - Fee Related
- 2000-03-27 CA CA002333622A patent/CA2333622A1/en not_active Abandoned
- 2000-03-27 KR KR1020007013488A patent/KR100732014B1/ko not_active IP Right Cessation
- 2000-03-27 AU AU33290/00A patent/AU769305B2/en not_active Ceased
- 2000-03-27 US US09/700,495 patent/US7012625B1/en not_active Expired - Fee Related
- 2000-03-28 TW TW089105647A patent/TW531721B/zh active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6339280B2 (ja) | 1983-01-14 | 1988-08-04 | Yoshiro Nakamatsu | |
JPS6339280A (ja) * | 1986-08-04 | 1988-02-19 | Mitsubishi Electric Corp | 画像処理装置 |
JPH03255785A (ja) * | 1990-03-06 | 1991-11-14 | Konica Corp | 画像処理装置 |
GB2281674A (en) | 1993-09-03 | 1995-03-08 | Matsushita Electric Ind Co Ltd | Digital image contrast conversion |
JPH07162715A (ja) * | 1993-12-10 | 1995-06-23 | Fujitsu General Ltd | デジタルガンマ補正方法 |
JPH07281633A (ja) * | 1994-04-06 | 1995-10-27 | Fujitsu General Ltd | 電子ディスプレイの映像表示処理方法およびその装置 |
JPH089197A (ja) * | 1994-06-20 | 1996-01-12 | Fujitsu General Ltd | 画像表示装置 |
JPH08317250A (ja) * | 1995-05-19 | 1996-11-29 | Fujitsu General Ltd | ダイナミック映像制御回路 |
US5808697A (en) | 1995-06-16 | 1998-09-15 | Mitsubishi Denki Kabushiki Kaisha | Video contrast enhancer |
Non-Patent Citations (1)
Title |
---|
See also references of EP1085494A4 |
Also Published As
Publication number | Publication date |
---|---|
AU3329000A (en) | 2000-10-23 |
AU769305B2 (en) | 2004-01-22 |
CN1306657A (zh) | 2001-08-01 |
TW531721B (en) | 2003-05-11 |
CN1163057C (zh) | 2004-08-18 |
KR100732014B1 (ko) | 2007-06-25 |
KR20010043934A (ko) | 2001-05-25 |
CA2333622A1 (en) | 2000-10-12 |
EP1085494A1 (en) | 2001-03-21 |
EP1085494A4 (en) | 2009-01-07 |
US7012625B1 (en) | 2006-03-14 |
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