JPS6342906B2 - - Google Patents

Info

Publication number
JPS6342906B2
JPS6342906B2 JP55027257A JP2725780A JPS6342906B2 JP S6342906 B2 JPS6342906 B2 JP S6342906B2 JP 55027257 A JP55027257 A JP 55027257A JP 2725780 A JP2725780 A JP 2725780A JP S6342906 B2 JPS6342906 B2 JP S6342906B2
Authority
JP
Japan
Prior art keywords
signal
image
level
image signal
output
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
Application number
JP55027257A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55130276A (en
Inventor
Guren Uiginsu Dagurasu
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.)
Xerox Corp
Original Assignee
Xerox Corp
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
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of JPS55130276A publication Critical patent/JPS55130276A/ja
Publication of JPS6342906B2 publication Critical patent/JPS6342906B2/ja
Granted 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
    • 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
    • H04N25/67—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response
    • H04N25/671—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction
    • 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
    • H04N25/701—Line sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Picture Signal Circuits (AREA)
JP2725780A 1979-03-26 1980-03-04 Device and method of controlling video signal gain for video observing device Granted JPS55130276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/023,570 US4216503A (en) 1979-03-26 1979-03-26 Signal restoration and gain control for image viewing devices

Publications (2)

Publication Number Publication Date
JPS55130276A JPS55130276A (en) 1980-10-08
JPS6342906B2 true JPS6342906B2 (cg-RX-API-DMAC7.html) 1988-08-26

Family

ID=21815913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2725780A Granted JPS55130276A (en) 1979-03-26 1980-03-04 Device and method of controlling video signal gain for video observing device

Country Status (5)

Country Link
US (1) US4216503A (cg-RX-API-DMAC7.html)
EP (1) EP0016629B1 (cg-RX-API-DMAC7.html)
JP (1) JPS55130276A (cg-RX-API-DMAC7.html)
CA (1) CA1132244A (cg-RX-API-DMAC7.html)
DE (1) DE3066908D1 (cg-RX-API-DMAC7.html)

Families Citing this family (79)

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US4351004A (en) * 1980-01-31 1982-09-21 Texas Instruments Incorporated CCD Imager
US4345148A (en) * 1980-10-06 1982-08-17 Hughes Aircraft Company Automatic responsivity control for a CCD imager
US4865427A (en) * 1981-01-12 1989-09-12 Massachusetts Institute Of Technology Spatial light modulator
US4696533A (en) * 1981-01-12 1987-09-29 Massachusetts Institute Of Technology Spatial light modulator
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US4578711A (en) * 1983-12-28 1986-03-25 International Business Machines (Ibm) Video data signal digitization and correction system
US4590505A (en) * 1984-01-10 1986-05-20 The United States Of America As Represented By The Secretary Of The Air Force Three dimensional optical receiver having programmable gain sensor stages
US4584610A (en) * 1984-02-16 1986-04-22 Olympus Optical Co., Ltd. Electronic photographing apparatus
JPS60189372A (ja) * 1984-03-08 1985-09-26 Dainippon Screen Mfg Co Ltd 画像入力装置
US4555732A (en) * 1984-03-22 1985-11-26 Xerox Corporation Image sensor correction system
US4636980A (en) * 1984-07-25 1987-01-13 Westinghouse Electric Corp. Three dimensional optical receiver having programmable gain control
JPS6153868A (ja) * 1984-08-24 1986-03-17 Dainippon Screen Mfg Co Ltd 画像走査信号処理におけるキャリブレーション装置
GB8506050D0 (en) * 1985-03-08 1985-04-11 Crosfield Electronics Ltd Operating ccd arrays
JPH07108023B2 (ja) * 1985-09-04 1995-11-15 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン カメラ
US5737016A (en) * 1985-11-15 1998-04-07 Canon Kabushiki Kaisha Solid state image pickup apparatus for reducing noise
JPH084127B2 (ja) * 1986-09-30 1996-01-17 キヤノン株式会社 光電変換装置
US5771070A (en) * 1985-11-15 1998-06-23 Canon Kabushiki Kaisha Solid state image pickup apparatus removing noise from the photoelectric converted signal
US4914519A (en) * 1986-09-19 1990-04-03 Canon Kabushiki Kaisha Apparatus for eliminating noise in a solid-state image pickup device
GB8606200D0 (en) * 1986-03-13 1986-04-16 Crosfield Electronics Ltd Operating radiation sensors
JPS62293384A (ja) * 1986-06-11 1987-12-19 Toshiba Corp 画像入力装置
US4991127A (en) * 1986-08-28 1991-02-05 Hughes Aircraft Company Offset and gain correction system for image data processing
US4862286A (en) * 1986-11-14 1989-08-29 Canon Kabushiki Kaisha Image reading apparatus which adjusts image signals to improve signal balance
US5121230A (en) * 1987-01-19 1992-06-09 Canon Kabushiki Kaisha Image reading apparatus having adjusting circuits for matching the level of and compensating for fluctuation among a plurality of sensing elements
DE3723508C1 (de) * 1987-07-16 1988-11-03 Fraunhofer Ges Forschung Schaltungsanordnung zur Grauwertkorrektur von Videosignalen
US4920428A (en) * 1988-07-08 1990-04-24 Xerox Corporation Offset, gain and bad pixel correction in electronic scanning arrays
US4903144A (en) * 1988-10-27 1990-02-20 Eastman Kodak Company Automatic D.C. offset control for image scanners
US5267053A (en) * 1988-10-27 1993-11-30 Eastman Kodak Company Automatic reference control for image scanners
JPH02164184A (ja) * 1988-12-19 1990-06-25 Toshiba Corp Ｘ線診断装置
JPH0693768B2 (ja) * 1988-12-27 1994-11-16 日本電気株式会社 撮像信号処理装置
US5008739A (en) * 1989-02-13 1991-04-16 Eastman Kodak Company Real-time digital processor for producing full resolution color signals from a multi-color image sensor
US4970598A (en) * 1989-05-30 1990-11-13 Eastman Kodak Company Method for correcting shading effects in video images
US4979042A (en) * 1989-05-30 1990-12-18 Eastman Kodak Company Apparatus for correcting shading effects in video images
JP2787710B2 (ja) * 1989-06-07 1998-08-20 株式会社ニコン 光電変換装置の信号補正装置
US4984085A (en) * 1989-08-03 1991-01-08 Allen-Bradley Company, Inc. Image processor with dark current compensation
US5065443A (en) * 1989-12-04 1991-11-12 Allen-Bradley Company, Inc. Image processor with illumination variation compensation
US5214518A (en) * 1989-12-22 1993-05-25 Fuji Xerox Co., Ltd. Multiple value image input equipment
DE69126895T2 (de) * 1990-01-25 1997-11-20 Hewlett Packard Co Verfahren und Vorrichtung zur Ausstattung eines Dokumentenlesers mit Sensorkompensation
US5272536A (en) * 1990-03-13 1993-12-21 Sony Corporation Dark current and defective pixel correction apparatus
US5086343A (en) * 1990-05-11 1992-02-04 Eastman Kodak Company Method and apparatus for compensating for sensitivity variations in the output of a solid state image sensor
US5047863A (en) * 1990-05-24 1991-09-10 Polaroid Corporation Defect correction apparatus for solid state imaging devices including inoperative pixel detection
US5047861A (en) * 1990-07-31 1991-09-10 Eastman Kodak Company Method and apparatus for pixel non-uniformity correction
WO1992007441A1 (en) * 1990-10-15 1992-04-30 The Gerber Scientific Instrument Company A large area digital scanner
US5204761A (en) * 1991-03-18 1993-04-20 Xerox Corporation Pixel by pixel offset and gain correction in analog data from scanning arrays
JPH04365264A (ja) * 1991-06-12 1992-12-17 Ricoh Co Ltd 原稿読取装置
US5157500A (en) * 1991-09-30 1992-10-20 Xerox Corporation Amplifier-return-driven CCD offset control for scanning arrays
US5153421A (en) * 1991-11-04 1992-10-06 Xerox Corporation Architecture for analog and digital image sensor arrays
JP2725508B2 (ja) * 1991-12-30 1998-03-11 日本電気株式会社 多素子光センサ装置
US5361140A (en) * 1992-02-18 1994-11-01 Neopath, Inc. Method and apparatus for dynamic correction of microscopic image signals
DE69318885T2 (de) * 1992-05-04 1999-01-21 Agfa-Gevaert N.V., Mortsel Automatische Verschiebung und Verstärkungssteuerung für einen Dokumentenabtaster
EP0603593B1 (en) * 1992-12-23 1998-01-21 Eastman Kodak Company Automatic channel gain and offset balance for video cameras employing multichannel sensors
JP3297946B2 (ja) * 1993-03-23 2002-07-02 ソニー株式会社 電荷転送装置
US5519441A (en) * 1993-07-01 1996-05-21 Xerox Corporation Apparatus and method for correcting offset and gain drift present during communication of data
JP3318905B2 (ja) * 1993-12-03 2002-08-26 ソニー株式会社 電荷転送装置
JP3525500B2 (ja) * 1994-07-26 2004-05-10 ミノルタ株式会社 固体撮像装置
US6038038A (en) * 1994-08-24 2000-03-14 Xerox Corporation Method for determining offset and gain correction for a light sensitive sensor
US5563723A (en) * 1994-08-31 1996-10-08 Eastman Kodak Company Method of calibration of image scanner signal processing circuits
US5621217A (en) * 1995-09-28 1997-04-15 Xerox Corporation Apparatus and method for calibrating a digital scanner
FR2743144B1 (fr) * 1995-12-28 1998-01-30 Sagem Procede de determination d'une energie lumineuse mesuree par un capteur
JP3774499B2 (ja) 1996-01-24 2006-05-17 キヤノン株式会社 光電変換装置
DE19605938B4 (de) * 1996-02-17 2004-09-16 Fachhochschule Wiesbaden Bildabtaster
US7173656B1 (en) * 1997-12-03 2007-02-06 Intel Corporation Method and apparatus for processing digital pixel output signals
US6327047B1 (en) * 1999-01-22 2001-12-04 Electronics For Imaging, Inc. Automatic scanner calibration
US6900448B1 (en) 2000-07-31 2005-05-31 Hewlett-Packard Development Company L.P. Method and system for dynamic scanner calibration
US7149002B2 (en) * 2000-12-21 2006-12-12 Hewlett-Packard Development Company, L.P. Scanner including calibration target
US7050098B2 (en) * 2001-03-29 2006-05-23 Canon Kabushiki Kaisha Signal processing apparatus and method, and image sensing apparatus having a plurality of image sensing regions per image frame
US7333423B2 (en) * 2004-03-31 2008-02-19 Intel Corporation Transceiver with calibrated I and Q paths and methods for deconvolved calibration
US9134344B2 (en) 2009-10-28 2015-09-15 Gridview Optical Solutions, Llc. Optical sensor assembly for installation on a current carrying cable
US8076925B2 (en) * 2009-10-28 2011-12-13 Optisense Network, Inc. Optical sensor assembly for installation on a current carrying cable
US8395372B2 (en) * 2009-10-28 2013-03-12 Optisense Network, Llc Method for measuring current in an electric power distribution system
US9535097B2 (en) 2012-07-19 2017-01-03 Gridview Optical Solutions, Llc. Electro-optic current sensor with high dynamic range and accuracy
US9146358B2 (en) 2013-07-16 2015-09-29 Gridview Optical Solutions, Llc Collimator holder for electro-optical sensor

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GB1391452A (en) * 1971-04-21 1975-04-23 Image Analysing Computers Ltd Method and circuit arrangement for amplitude correction of a video signal obtained by line scanning
US3962681A (en) * 1972-06-19 1976-06-08 Recognition Equipment Incorporated Page width optical character processing method and system
US3800079A (en) * 1972-12-18 1974-03-26 Ibm Compensation for a scanning system
US3800078A (en) * 1972-12-18 1974-03-26 Ibm Digitally compensated scanning system
GB1526801A (en) * 1976-01-08 1978-10-04 British Broadcasting Corp Compensating interference from solid state image sensing devices
US4065788A (en) * 1976-02-09 1977-12-27 Mcdonnell Douglas Corporation Realtime image processor
US4074320A (en) * 1976-12-13 1978-02-14 Bell Telephone Laboratories, Incorporated High quality light emitting diode array imaging system
US4129853A (en) * 1977-09-26 1978-12-12 International Business Machines Corporation Method and apparatus for producing compensated signals for individual light sensors arranged in a predetermined relation

Also Published As

Publication number Publication date
US4216503A (en) 1980-08-05
EP0016629A2 (en) 1980-10-01
EP0016629A3 (en) 1980-10-15
JPS55130276A (en) 1980-10-08
EP0016629B1 (en) 1984-03-14
DE3066908D1 (en) 1984-04-19
CA1132244A (en) 1982-09-21

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