FR2663802B1 - Dispositif de compensation d'effets du courant obscurite dans un dispositif electronique de formation d'image. - Google Patents

Dispositif de compensation d'effets du courant obscurite dans un dispositif electronique de formation d'image.

Info

Publication number
FR2663802B1
FR2663802B1 FR9106317A FR9106317A FR2663802B1 FR 2663802 B1 FR2663802 B1 FR 2663802B1 FR 9106317 A FR9106317 A FR 9106317A FR 9106317 A FR9106317 A FR 9106317A FR 2663802 B1 FR2663802 B1 FR 2663802B1
Authority
FR
France
Prior art keywords
dark current
ccd
compensating
image forming
electronic image
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 - Fee Related
Application number
FR9106317A
Other languages
English (en)
Other versions
FR2663802A1 (fr
Inventor
Tani Nobuhiro
Nobuhiro Tani
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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
Priority claimed from JP2136521A external-priority patent/JP2802960B2/ja
Priority claimed from JP2136522A external-priority patent/JP2802961B2/ja
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2663802A1 publication Critical patent/FR2663802A1/fr
Application granted granted Critical
Publication of FR2663802B1 publication Critical patent/FR2663802B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H04N25/63—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
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components
    • 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
    • H04N25/62—Detection or reduction of noise due to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels
    • H04N25/621—Detection or reduction of noise due to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels for the control of blooming
    • H04N25/622—Detection or reduction of noise due to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels for the control of blooming by controlling anti-blooming drains
    • 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
    • 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
    • H04N2101/00—Still video cameras

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

Dispositif de commande comprenant un système de commande pour éliminer un effet d'un courant d'obscurité produit dans un CCD (11). Le système de commande exécute une opération de pompage de charges dans le CCD (11), après qu'un objet ait été photographié, jusqu'à ce qu'un diaphragme (13) soit fermé. Le système de commande extrait une composante de courant d'obscurité produite au cours d'une période pendant laquelle le diaphragme (13) est fermé après une opération de photographie en se basant sur une composante de courant d'obscurité sortie par le CCD (11) pendant une période prédéterminée, et ensuite il soustrait la composante de courant d'obscurité de l'information sortie par le CCD (11) en fonction d'un signal d'image correspondant à l'objet.
FR9106317A 1990-05-25 1991-05-27 Dispositif de compensation d'effets du courant obscurite dans un dispositif electronique de formation d'image. Expired - Fee Related FR2663802B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2136521A JP2802960B2 (ja) 1990-05-25 1990-05-25 撮像素子駆動装置
JP2136522A JP2802961B2 (ja) 1990-05-25 1990-05-25 撮像素子駆動装置

Publications (2)

Publication Number Publication Date
FR2663802A1 FR2663802A1 (fr) 1991-12-27
FR2663802B1 true FR2663802B1 (fr) 1995-10-27

Family

ID=26470073

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9106317A Expired - Fee Related FR2663802B1 (fr) 1990-05-25 1991-05-27 Dispositif de compensation d'effets du courant obscurite dans un dispositif electronique de formation d'image.

Country Status (4)

Country Link
US (2) US5477265A (fr)
DE (1) DE4117020C2 (fr)
FR (1) FR2663802B1 (fr)
GB (1) GB2246267B (fr)

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JP3222586B2 (ja) * 1992-10-26 2001-10-29 旭光学工業株式会社 撮像素子駆動装置
JP3847811B2 (ja) * 1995-06-30 2006-11-22 キヤノン株式会社 撮像装置
JPH09222397A (ja) * 1996-02-16 1997-08-26 Mitsui Mining & Smelting Co Ltd 散乱光による観察装置
US6760060B1 (en) * 1996-02-16 2004-07-06 Mitsui Mining & Smelting Co., Ltd. Observation apparatus for observing a defect in a moving target object using scattered light
JP4329128B2 (ja) * 1996-07-12 2009-09-09 ソニー株式会社 固体撮像装置、固体撮像装置の駆動方法およびカメラ
GB2317522B (en) * 1996-09-12 2000-09-27 Vsli Vision Limited Low noise operation of an image sensor
JP3981173B2 (ja) * 1996-12-24 2007-09-26 オリンパス株式会社 撮像装置
US7173656B1 (en) * 1997-12-03 2007-02-06 Intel Corporation Method and apparatus for processing digital pixel output signals
US6211975B1 (en) 1998-08-14 2001-04-03 Eastman Kodak Company Method and apparatus for controlling image data transfer in a photographic film scanner
US6965410B1 (en) * 1998-12-03 2005-11-15 Canon Kabushiki Kaisha Image sensing apparatus employing dark image data to correct dark noise
JP4347948B2 (ja) 1999-05-28 2009-10-21 Ｈｏｙａ株式会社 撮像素子駆動装置
JP4497759B2 (ja) * 2000-06-30 2010-07-07 キヤノン株式会社 画像処理装置及びその処理方法
JP2002077739A (ja) * 2000-08-30 2002-03-15 Chinon Ind Inc 固体撮像素子、レンズ装置および撮像装置
US7064785B2 (en) * 2002-02-07 2006-06-20 Eastman Kodak Company Apparatus and method of correcting for dark current in a solid state image sensor
JP4358606B2 (ja) * 2003-11-20 2009-11-04 オリンパス株式会社 インターバル撮影に適用される撮像装置およびそのための暗時ノイズ抑圧処理方法
CN104270581B (zh) * 2014-09-29 2017-06-06 南京大学 一种便携式真随机码发生装置及方法

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US3931510A (en) * 1974-07-12 1976-01-06 Texas Instruments Incorporated Equalization storage in recirculating memories
JPS6053383A (ja) * 1983-09-02 1985-03-27 Toshiba Corp 電子カメラにおける撮像方式
DE3441025A1 (de) * 1983-11-11 1985-05-30 Canon K.K., Tokio/Tokyo Bildaufnahmeeinrichtung
JPH0767153B2 (ja) * 1984-02-20 1995-07-19 三洋電機株式会社 固体撮像素子の駆動方法
JPH0831991B2 (ja) * 1984-04-17 1996-03-27 オリンパス光学工業株式会社 固体撮像装置
US4679212A (en) * 1984-07-31 1987-07-07 Texas Instruments Incorporated Method and apparatus for using surface trap recombination in solid state imaging devices
US4589025A (en) * 1984-11-30 1986-05-13 Rca Corporation Dark current measurement and correction for video from field-transfer imagers
EP0205189B1 (fr) * 1985-06-14 1991-10-16 Fuji Photo Film Co., Ltd. Caméra électronique d'image immobile
JPH084127B2 (ja) * 1986-09-30 1996-01-17 キヤノン株式会社 光電変換装置
CH669699A5 (fr) * 1986-02-20 1989-03-31 Gx Holding Ag
JPH0797830B2 (ja) * 1986-04-08 1995-10-18 ソニー株式会社 ビデオカメラの黒レベル補正回路
JPH0815322B2 (ja) * 1986-05-21 1996-02-14 キヤノン株式会社 固体撮像装置
JP2576860B2 (ja) * 1987-01-19 1997-01-29 キヤノン株式会社 撮像装置
JPS63234676A (ja) * 1987-03-23 1988-09-29 Canon Inc カメラ
JPS63296478A (ja) * 1987-05-28 1988-12-02 Nippon Hoso Kyokai <Nhk> 固体撮像装置
JPS6423548A (en) * 1987-07-20 1989-01-26 Hitachi Ltd Semiconductor integrated circuit device
JPH0628396B2 (ja) * 1987-09-25 1994-04-13 旭光学工業株式会社 電子スチルカメラ
JP2704624B2 (ja) * 1988-03-16 1998-01-26 キヤノン株式会社 撮像装置
US4972267A (en) * 1988-06-14 1990-11-20 Fuji Photo Film Co., Ltd. Still-video camera for eliminating dark current differences
JPH0231571A (ja) * 1988-07-21 1990-02-01 Fuji Photo Film Co Ltd 固体撮像装置及びその駆動方法
US5031048A (en) * 1988-08-09 1991-07-09 Minolta Camera Kabushiki Kaisha Electric shutter control device for use in a still video camera, for example, and a method of controlling same
JP2587470B2 (ja) * 1988-09-02 1997-03-05 富士写真フイルム株式会社 イメージセンサの暗時出力補正装置
JPH088666B2 (ja) * 1988-12-16 1996-01-29 旭光学工業株式会社 撮像素子の駆動装置
DE3914575A1 (de) * 1989-05-03 1990-11-08 Bosch Gmbh Robert Einrichtung zur bildaufnahme
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JP2808315B2 (ja) * 1989-08-08 1998-10-08 旭光学工業株式会社 撮像素子駆動装置
DE69116905T2 (de) * 1990-03-13 1996-06-13 Sony Corp., Tokio/Tokyo Schattierungseffektenkorrekturvorrichtung
JPH04219063A (ja) * 1990-05-15 1992-08-10 Ricoh Co Ltd 画像読取装置
JP2802962B2 (ja) * 1990-05-25 1998-09-24 旭光学工業株式会社 撮像素子駆動装置

Also Published As

Publication number Publication date
GB2246267A (en) 1992-01-22
DE4117020C2 (de) 1993-12-02
US5477265A (en) 1995-12-19
GB9111429D0 (en) 1991-07-17
US5719625A (en) 1998-02-17
GB2246267B (en) 1994-07-20
DE4117020A1 (de) 1991-11-28
FR2663802A1 (fr) 1991-12-27

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Effective date: 20070131