CN1328902C - 图像信号处理装置和使用它的电视接收机和图像信号处理方法 - Google Patents
图像信号处理装置和使用它的电视接收机和图像信号处理方法 Download PDFInfo
- Publication number
- CN1328902C CN1328902C CNB2004100970220A CN200410097022A CN1328902C CN 1328902 C CN1328902 C CN 1328902C CN B2004100970220 A CNB2004100970220 A CN B2004100970220A CN 200410097022 A CN200410097022 A CN 200410097022A CN 1328902 C CN1328902 C CN 1328902C
- Authority
- CN
- China
- Prior art keywords
- circuit
- correction
- contrast
- picture signal
- picture
- 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.)
- Active
Links
- 238000003672 processing method Methods 0.000 title claims description 4
- 238000012937 correction Methods 0.000 claims abstract description 171
- 238000009826 distribution Methods 0.000 claims abstract description 12
- 238000005070 sampling Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 11
- 230000003321 amplification Effects 0.000 abstract description 3
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 10
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 5
- 241000255925 Diptera Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
- H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
Abstract
Description
计数器号 | 对应辉度水平(灰度等级) | 计数值(像素数) |
计数器1 | 0-7 | 2356 |
计数器2 | 8-15 | 48909 |
计数器3 | 16-23 | 10975 |
计数器4 | 24-32 | 7891 |
… | … | … |
计数器32 | 248-255 | 3890 |
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003411178A JP4200890B2 (ja) | 2003-12-10 | 2003-12-10 | 映像信号処理装置及びそれを用いたテレビジョン受信機並びに映像信号処理方法 |
JP2003411178 | 2003-12-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1627791A CN1627791A (zh) | 2005-06-15 |
CN1328902C true CN1328902C (zh) | 2007-07-25 |
Family
ID=34650427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100970220A Active CN1328902C (zh) | 2003-12-10 | 2004-12-08 | 图像信号处理装置和使用它的电视接收机和图像信号处理方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7382414B2 (zh) |
JP (1) | JP4200890B2 (zh) |
CN (1) | CN1328902C (zh) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006098803A (ja) * | 2004-09-29 | 2006-04-13 | Toshiba Corp | 動画処理方法、動画処理装置および動画処理プログラム |
US7760938B1 (en) * | 2004-10-12 | 2010-07-20 | Melexis Tessenderlo Nv | Algorithm to enhance the contrast of a monochrome image |
JP2006333202A (ja) * | 2005-05-27 | 2006-12-07 | Matsushita Electric Ind Co Ltd | 映像信号処理装置、および映像信号処理方法 |
JP4419933B2 (ja) * | 2005-08-26 | 2010-02-24 | ソニー株式会社 | 画像処理装置、画像表示装置および画像処理方法 |
WO2007052184A2 (en) * | 2005-11-02 | 2007-05-10 | Koninklijke Philips Electronics N. V. | Image processing system and method for silhouette rendering and display of images during interventional procedures |
KR101156681B1 (ko) * | 2005-12-12 | 2012-06-14 | 삼성전자주식회사 | 디지털 영상 처리 장치에서 가변적인 노이즈 레벨을사용하는 자동 포커싱 방법 |
US7738698B2 (en) * | 2006-01-26 | 2010-06-15 | Vestel Elektronik Sanayi Ve Ticaret A.S. | Method and apparatus for adjusting the contrast of an image |
JP4273428B2 (ja) * | 2006-01-31 | 2009-06-03 | ソニー株式会社 | 画像処理装置、画像処理方法、画像処理方法のプログラム及び画像処理方法のプログラムを記録した記録媒体 |
KR20070079224A (ko) * | 2006-02-01 | 2007-08-06 | 삼성전자주식회사 | 코어링 장치 및 이를 이용하는 휘도 처리 프로세서와 그방법 |
JP4791884B2 (ja) * | 2006-05-24 | 2011-10-12 | 株式会社東芝 | 映像信号処理装置及び映像信号処理方法 |
JP4791887B2 (ja) * | 2006-05-30 | 2011-10-12 | 株式会社東芝 | 映像信号処理装置及び映像信号処理方法 |
US8134646B2 (en) | 2006-05-24 | 2012-03-13 | Kabushiki Kaisha Toshiba | Video signal processing device and video signal processing method |
JP5125215B2 (ja) * | 2006-06-15 | 2013-01-23 | 株式会社Jvcケンウッド | 映像表示装置及び映像表示方法 |
SG138579A1 (en) * | 2006-06-26 | 2008-01-28 | Genesis Microchip Inc | Universal, highly configurable video and graphic measurement device |
KR101244679B1 (ko) * | 2006-07-27 | 2013-03-18 | 삼성전자주식회사 | 밝기에 따른 동적 이득 조절 방법 및 장치 |
US7881547B2 (en) * | 2006-07-28 | 2011-02-01 | Genesis Microchip Inc. | Video window detector |
JP2008153737A (ja) * | 2006-12-14 | 2008-07-03 | Toshiba Corp | 映像信号処理装置および映像信号処理方法 |
JP4304678B2 (ja) * | 2007-01-16 | 2009-07-29 | セイコーエプソン株式会社 | 画像処理装置 |
JP5103984B2 (ja) * | 2007-03-29 | 2012-12-19 | 株式会社ニコン | 画像処理装置、撮像装置、および画像処理プログラム |
JP4983415B2 (ja) * | 2007-06-11 | 2012-07-25 | ソニー株式会社 | 画像信号処理装置、画像信号処理方法及びプログラム |
JP4835525B2 (ja) * | 2007-07-04 | 2011-12-14 | ソニー株式会社 | 画像処理装置、画像処理方法及びプログラム |
US8411983B2 (en) * | 2007-08-31 | 2013-04-02 | Ati Technologies Ulc | Method and apparatus for producing a contrast enhanced image |
JP4655079B2 (ja) * | 2007-11-06 | 2011-03-23 | ソニー株式会社 | 液晶表示装置、液晶表示モジュールおよび液晶表示装置の駆動方法 |
KR101448642B1 (ko) * | 2008-04-22 | 2014-10-08 | 엘지전자 주식회사 | 영상기기의 블랙 레벨 조정 방법 및 그 방법을 채용한영상기기 |
JP5169652B2 (ja) * | 2008-09-08 | 2013-03-27 | セイコーエプソン株式会社 | 画像処理装置、画像表示装置、画像処理方法及び画像表示方法 |
JP5111310B2 (ja) * | 2008-09-09 | 2013-01-09 | キヤノン株式会社 | 画像処理方法及び画像処理装置 |
JP2010103740A (ja) * | 2008-10-23 | 2010-05-06 | Panasonic Corp | デジタルカメラ |
JP2010278929A (ja) * | 2009-05-29 | 2010-12-09 | Toshiba Corp | 画像処理装置 |
US8395708B2 (en) * | 2009-07-21 | 2013-03-12 | Qualcomm Incorporated | Method and system for detection and enhancement of video images |
US8520133B2 (en) * | 2010-12-21 | 2013-08-27 | Samsung Electronics Co., Ltd | Imaging apparatus and method |
JP5683255B2 (ja) * | 2010-12-21 | 2015-03-11 | キヤノン株式会社 | 画像処理装置及び方法 |
KR101260010B1 (ko) * | 2011-08-05 | 2013-05-06 | 주식회사 아이덴코아 | 보상기능을 갖는 비디오 디코딩 시스템 |
KR101987764B1 (ko) * | 2012-09-12 | 2019-06-11 | 삼성전자주식회사 | 선명도 향상 장치 및 방법 |
KR101634652B1 (ko) * | 2014-08-28 | 2016-06-29 | 인천대학교 산학협력단 | 영상의 대비 강화 방법 및 장치 |
EP3220349A1 (en) * | 2016-03-16 | 2017-09-20 | Thomson Licensing | Methods, apparatus, and systems for extended high dynamic range ("hdr") hdr to hdr tone mapping |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0856316A (ja) * | 1994-06-09 | 1996-02-27 | Sony Corp | 画像処理装置 |
US5696852A (en) * | 1990-04-27 | 1997-12-09 | Canon Kabushiki Kaisha | Image signal processing apparatus |
EP1111907A2 (en) * | 1999-12-22 | 2001-06-27 | Eastman Kodak Company | A method for enhancing a digital image with noise-dependant control of texture |
US6579239B1 (en) * | 2002-04-05 | 2003-06-17 | Ge Medical Systems Global Technology Company, Llc | System and method for automatic adjustment of brightness and contrast in images |
JP2003348377A (ja) * | 2002-05-22 | 2003-12-05 | Sony Corp | 画像表示装置および画像処理装置、並びに画像処理方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5271064A (en) * | 1991-06-14 | 1993-12-14 | University Of Cincinnati | Apparatus and method for smoothing regions and enhancing edges in gray scale images |
JP2752810B2 (ja) | 1991-08-23 | 1998-05-18 | 三菱電機株式会社 | 輪郭修整回路 |
US5224177A (en) * | 1991-10-31 | 1993-06-29 | The University Of Chicago | High quality film image correction and duplication method and system |
CA2130340C (en) * | 1992-02-18 | 2000-06-06 | Shih-Jong James Lee | Method for identifying objects using data processing techniques |
US6118886A (en) * | 1993-03-30 | 2000-09-12 | The United States Of America As Represented By The United States Department Of Energy | Automatic target recognition apparatus and method |
US5978497A (en) * | 1994-09-20 | 1999-11-02 | Neopath, Inc. | Apparatus for the identification of free-lying cells |
JP3298330B2 (ja) | 1994-10-06 | 2002-07-02 | 松下電器産業株式会社 | 撮像装置 |
US6040860A (en) | 1994-09-30 | 2000-03-21 | Matsushita Electric Industrial Co., Ltd. | Imaging apparatus for supplying images with rich gradation across the entire luminance range for all subject types |
JP3714491B2 (ja) | 1996-02-26 | 2005-11-09 | 富士写真フイルム株式会社 | 輪郭強調方法 |
JP3696345B2 (ja) * | 1996-10-03 | 2005-09-14 | 富士写真フイルム株式会社 | 画像処理方法及び装置 |
US6583811B2 (en) * | 1996-10-25 | 2003-06-24 | Fuji Photo Film Co., Ltd. | Photographic system for recording data and reproducing images using correlation data between frames |
JP4131348B2 (ja) | 1998-11-18 | 2008-08-13 | ソニー株式会社 | 画像処理装置及び画像処理方法 |
JP3215400B1 (ja) | 1999-05-10 | 2001-10-02 | 松下電器産業株式会社 | 画像表示装置および画像表示方法 |
KR20020007411A (ko) * | 2000-03-15 | 2002-01-26 | 요트.게.아. 롤페즈 | 피킹 필터를 갖는 비디오 장치 |
JP3769463B2 (ja) * | 2000-07-06 | 2006-04-26 | 株式会社日立製作所 | 表示装置、表示装置を備えた画像再生装置及びその駆動方法 |
-
2003
- 2003-12-10 JP JP2003411178A patent/JP4200890B2/ja not_active Expired - Lifetime
-
2004
- 2004-11-29 US US10/998,163 patent/US7382414B2/en active Active
- 2004-12-08 CN CNB2004100970220A patent/CN1328902C/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5696852A (en) * | 1990-04-27 | 1997-12-09 | Canon Kabushiki Kaisha | Image signal processing apparatus |
JPH0856316A (ja) * | 1994-06-09 | 1996-02-27 | Sony Corp | 画像処理装置 |
EP1111907A2 (en) * | 1999-12-22 | 2001-06-27 | Eastman Kodak Company | A method for enhancing a digital image with noise-dependant control of texture |
US6579239B1 (en) * | 2002-04-05 | 2003-06-17 | Ge Medical Systems Global Technology Company, Llc | System and method for automatic adjustment of brightness and contrast in images |
JP2003348377A (ja) * | 2002-05-22 | 2003-12-05 | Sony Corp | 画像表示装置および画像処理装置、並びに画像処理方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2005175735A (ja) | 2005-06-30 |
JP4200890B2 (ja) | 2008-12-24 |
CN1627791A (zh) | 2005-06-15 |
US7382414B2 (en) | 2008-06-03 |
US20050128358A1 (en) | 2005-06-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1328902C (zh) | 图像信号处理装置和使用它的电视接收机和图像信号处理方法 | |
EP0856813A2 (en) | Method for improving contrast in picture sequences | |
US8374430B2 (en) | Apparatus and method for feature-based dynamic contrast enhancement | |
CN100515032C (zh) | 图像显示装置 | |
US20060082689A1 (en) | Method of generating transfer curves for adaptive contrast enhancement | |
KR102490304B1 (ko) | 디스플레이장치와 기록매체 | |
EP1883225B1 (en) | Dynamic gain adjustment method based on brightness and apparatus thereof | |
JP4605654B2 (ja) | 映像信号処理装置及び同装置を備えた表示装置 | |
CN100342718C (zh) | 图像信号处理装置 | |
US7609282B2 (en) | Image display method and apparatus | |
US20060285768A1 (en) | Video processing methods and systems | |
US8134646B2 (en) | Video signal processing device and video signal processing method | |
US6781625B2 (en) | Noise reducing apparatus | |
JP4303652B2 (ja) | 階調補正回路及びこれを用いたテレビジョン受像機 | |
US20060221244A1 (en) | Image-quality adjusting apparatus, image-quality adjusting method, and display apparatus | |
KR100813620B1 (ko) | 명암대비 보정장치 및 보정방법 | |
EP1758370A3 (en) | Image processing apparatus, image display and image processing method | |
KR100425324B1 (ko) | 영상 신호의 콘트라스트 처리 방법 | |
JP4392650B2 (ja) | 画像補正装置及び方法 | |
JP3318755B2 (ja) | 映像信号処理装置 | |
KR100606740B1 (ko) | 다이나믹 콘트라스트 조정 방법 | |
KR20100028247A (ko) | 영상 표시 기기의 명암 보정 장치 및 방법 | |
JP4466454B2 (ja) | 映像補正装置 | |
KR100252993B1 (ko) | 티브이(tv)의 휘도 및 콘트라스트 보정방법 | |
JP3934363B2 (ja) | ガンマ補正回路 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: HITACHI LTD. Free format text: FORMER OWNER: HITACHI,LTD. Effective date: 20130821 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130821 Address after: Tokyo, Japan Patentee after: HITACHI CONSUMER ELECTRONICS Co.,Ltd. Address before: Tokyo, Japan Patentee before: Hitachi, Ltd. |
|
ASS | Succession or assignment of patent right |
Owner name: HITACHI MAXELL LTD. Free format text: FORMER OWNER: HITACHI LTD. Effective date: 20150304 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150304 Address after: Osaka Japan Patentee after: Hitachi Maxell, Ltd. Address before: Tokyo, Japan Patentee before: Hitachi Consumer Electronics Co.,Ltd. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20180302 Address after: Kyoto Japan Patentee after: MAXELL, Ltd. Address before: Osaka Japan Patentee before: Hitachi Maxell, Ltd. |
|
TR01 | Transfer of patent right | ||
CP01 | Change in the name or title of a patent holder |
Address after: Kyoto Japan Patentee after: MAXELL, Ltd. Address before: Kyoto Japan Patentee before: MAXELL HOLDINGS, Ltd. |
|
CP01 | Change in the name or title of a patent holder | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220526 Address after: Kyoto Japan Patentee after: MAXELL HOLDINGS, Ltd. Address before: Kyoto Japan Patentee before: MAXELL, Ltd. |
|
TR01 | Transfer of patent right |