DE602005004196D1 - Schaltung und Verfahren zur Kontrolle des optischen Schwarzwertes - Google Patents
Schaltung und Verfahren zur Kontrolle des optischen SchwarzwertesInfo
- Publication number
- DE602005004196D1 DE602005004196D1 DE602005004196T DE602005004196T DE602005004196D1 DE 602005004196 D1 DE602005004196 D1 DE 602005004196D1 DE 602005004196 T DE602005004196 T DE 602005004196T DE 602005004196 T DE602005004196 T DE 602005004196T DE 602005004196 D1 DE602005004196 D1 DE 602005004196D1
- Authority
- DE
- Germany
- Prior art keywords
- controlling
- circuit
- black level
- optical black
- optical
- 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
- 230000003287 optical effect Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/616—Noise processing, e.g. detecting, correcting, reducing or removing noise involving a correlated sampling function, e.g. correlated double sampling [CDS] or triple sampling
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41C—CORSETS; BRASSIERES
- A41C1/00—Corsets or girdles
- A41C1/02—Elastic corsets
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
- A41B17/00—Selection of special materials for underwear
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41C—CORSETS; BRASSIERES
- A41C1/00—Corsets or girdles
- A41C1/003—Panty-girdles
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41C—CORSETS; BRASSIERES
- A41C1/00—Corsets or girdles
- A41C1/12—Component parts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/63—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/63—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current
- H04N25/633—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current by using optical black pixels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
- H04N25/73—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors using interline transfer [IT]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/68—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004129071A JP4345004B2 (ja) | 2004-04-23 | 2004-04-23 | 光学的黒レベル調整回路 |
JP2004129071 | 2004-04-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE602005004196D1 true DE602005004196D1 (de) | 2008-02-21 |
DE602005004196T2 DE602005004196T2 (de) | 2008-12-24 |
Family
ID=34940896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602005004196T Active DE602005004196T2 (de) | 2004-04-23 | 2005-04-19 | Schaltung und Verfahren zur Kontrolle des optischen Schwarzwertes |
Country Status (6)
Country | Link |
---|---|
US (1) | US7714913B2 (de) |
EP (1) | EP1589747B1 (de) |
JP (1) | JP4345004B2 (de) |
KR (1) | KR101194915B1 (de) |
CN (1) | CN100377569C (de) |
DE (1) | DE602005004196T2 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7084911B1 (en) * | 2002-11-08 | 2006-08-01 | Eastman Kodak Company | Black level calibration method for imager with hysteresis comparison and adaptive step size |
JP4791122B2 (ja) * | 2004-11-12 | 2011-10-12 | オリンパス株式会社 | クランプ回路、及びこのクランプ回路を有するデジタルカメラシステム |
US7427735B2 (en) * | 2005-12-14 | 2008-09-23 | Micron Technology, Inc. | Method and apparatus for setting black level in an imager using both optically black and tied pixels |
JP2007194899A (ja) * | 2006-01-19 | 2007-08-02 | Matsushita Electric Ind Co Ltd | 映像信号クランプ回路 |
JP4931546B2 (ja) | 2006-10-24 | 2012-05-16 | ソニー株式会社 | 固体撮像装置及び撮像装置 |
GB2446844B (en) * | 2006-12-05 | 2011-05-25 | Wolfson Microelectronics Plc | Callibration circuit and asociated method |
US20080203953A1 (en) * | 2007-02-28 | 2008-08-28 | Hong Zhang | Control bandwidth for cost effective ac motor drives in aerospace applications using two dsp devices with dissimilar redundant inter-processor communication link |
JP5104036B2 (ja) | 2007-05-24 | 2012-12-19 | ソニー株式会社 | 固体撮像素子とその製造方法及び撮像装置 |
JP5106017B2 (ja) * | 2007-09-20 | 2012-12-26 | 三洋電機株式会社 | カメラ |
JP4656115B2 (ja) * | 2007-09-27 | 2011-03-23 | ソニー株式会社 | 撮像装置、画像信号処理回路、および画像信号処理方法、並びにコンピュータ・プログラム |
JP5487667B2 (ja) * | 2009-03-23 | 2014-05-07 | 株式会社リコー | 画像読取装置および画像形成装置 |
JP5251777B2 (ja) * | 2009-07-30 | 2013-07-31 | ソニー株式会社 | 固体撮像素子およびカメラシステム |
US8179455B2 (en) * | 2010-03-11 | 2012-05-15 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Optical black-level cancellation for optical sensors using open-loop sample calibration amplifier |
CN102256046B (zh) * | 2010-05-21 | 2013-04-17 | 北京创毅视讯科技有限公司 | 一种快速跳变移动模拟电视视频信号的整形方法和装置 |
JP2012065115A (ja) | 2010-09-15 | 2012-03-29 | Ricoh Co Ltd | 画像処理装置及び方法 |
CN103067675B (zh) * | 2012-12-14 | 2018-02-27 | 上海集成电路研发中心有限公司 | Cmos像素阵列校正系统 |
US9224782B2 (en) | 2013-04-19 | 2015-12-29 | Semiconductor Components Industries, Llc | Imaging systems with reference pixels for image flare mitigation |
JP6090696B2 (ja) * | 2013-05-30 | 2017-03-08 | パナソニックIpマネジメント株式会社 | クランプ処理方法 |
JP2015050671A (ja) * | 2013-09-02 | 2015-03-16 | 株式会社東芝 | 固体撮像装置 |
JP6604907B2 (ja) * | 2016-06-09 | 2019-11-13 | キヤノン株式会社 | 画像読取装置、画像読取方法、及びプログラム |
CN108322679B (zh) * | 2017-12-29 | 2020-06-30 | 成都微光集电科技有限公司 | 一种消除暗电流的电路及系统 |
CN110365922B (zh) * | 2019-07-03 | 2021-09-14 | 成都微光集电科技有限公司 | 一种图像传感器的黑电平校正方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5410365A (en) * | 1992-04-02 | 1995-04-25 | Sony Corporation | Video camera with coarse analog and fine digital black level adjustment |
JP3263789B2 (ja) * | 1992-04-08 | 2002-03-11 | ソニー株式会社 | 撮像装置 |
US5659355A (en) * | 1994-10-31 | 1997-08-19 | Eastman Kodak Company | CCD dark mean level correction circuit employing digital processing and analog subtraction requiring no advance knowledge of dark mean level |
US6750910B1 (en) * | 1998-07-15 | 2004-06-15 | Texas Instruments Incorporated | Optical black and offset correction in CCD signal processing |
JP4454750B2 (ja) * | 1999-12-28 | 2010-04-21 | 日本バーブラウン株式会社 | イメージセンサ用のフロントエンド信号処理の方法および装置 |
US6806901B1 (en) * | 2000-10-31 | 2004-10-19 | Texas Instruments Incorporated | Controlling the range and resolution of offset correction applied to the output of a charge coupled device |
JP4655383B2 (ja) * | 2001-02-23 | 2011-03-23 | ソニー株式会社 | イメージセンサの画像信号処理装置 |
US7259787B2 (en) * | 2003-03-27 | 2007-08-21 | Eastman Kodak Company | Digital black clamp circuit in electronic imaging systems |
US20050007461A1 (en) * | 2003-07-11 | 2005-01-13 | Novatek Microelectronic Co. | Correction system and method of analog front end |
-
2004
- 2004-04-23 JP JP2004129071A patent/JP4345004B2/ja not_active Expired - Fee Related
-
2005
- 2005-04-19 EP EP05252418A patent/EP1589747B1/de not_active Expired - Fee Related
- 2005-04-19 DE DE602005004196T patent/DE602005004196T2/de active Active
- 2005-04-21 US US11/111,014 patent/US7714913B2/en not_active Expired - Fee Related
- 2005-04-22 KR KR1020050033439A patent/KR101194915B1/ko not_active IP Right Cessation
- 2005-04-25 CN CNB2005100674787A patent/CN100377569C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN100377569C (zh) | 2008-03-26 |
KR101194915B1 (ko) | 2012-10-25 |
EP1589747A1 (de) | 2005-10-26 |
US20050237402A1 (en) | 2005-10-27 |
US7714913B2 (en) | 2010-05-11 |
CN1691747A (zh) | 2005-11-02 |
JP4345004B2 (ja) | 2009-10-14 |
DE602005004196T2 (de) | 2008-12-24 |
KR20060047392A (ko) | 2006-05-18 |
JP2005311919A (ja) | 2005-11-04 |
EP1589747B1 (de) | 2008-01-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |