JP4574144B2 - デジタルクランプ装置、デジタルクランプ方法、及びプログラム及び記憶媒体 - Google Patents

デジタルクランプ装置、デジタルクランプ方法、及びプログラム及び記憶媒体 Download PDF

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Publication number
JP4574144B2
JP4574144B2 JP2003317325A JP2003317325A JP4574144B2 JP 4574144 B2 JP4574144 B2 JP 4574144B2 JP 2003317325 A JP2003317325 A JP 2003317325A JP 2003317325 A JP2003317325 A JP 2003317325A JP 4574144 B2 JP4574144 B2 JP 4574144B2
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Japan
Prior art keywords
line
image data
quantization step
image
digital
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JP2003317325A
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Japanese (ja)
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JP2005086551A5 (https=
JP2005086551A (ja
Inventor
雄資 白川
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Canon Inc
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Canon Inc
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Priority to JP2003317325A priority Critical patent/JP4574144B2/ja
Priority to US10/938,367 priority patent/US7626623B2/en
Publication of JP2005086551A publication Critical patent/JP2005086551A/ja
Publication of JP2005086551A5 publication Critical patent/JP2005086551A5/ja
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed 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
    • H04N5/16—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
    • H04N5/185—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Studio Devices (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP2003317325A 2003-09-09 2003-09-09 デジタルクランプ装置、デジタルクランプ方法、及びプログラム及び記憶媒体 Expired - Fee Related JP4574144B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003317325A JP4574144B2 (ja) 2003-09-09 2003-09-09 デジタルクランプ装置、デジタルクランプ方法、及びプログラム及び記憶媒体
US10/938,367 US7626623B2 (en) 2003-09-09 2004-09-09 Signal processing apparatus, signal processing method, program, and storage medium employing random number generation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003317325A JP4574144B2 (ja) 2003-09-09 2003-09-09 デジタルクランプ装置、デジタルクランプ方法、及びプログラム及び記憶媒体

Publications (3)

Publication Number Publication Date
JP2005086551A JP2005086551A (ja) 2005-03-31
JP2005086551A5 JP2005086551A5 (https=) 2009-08-27
JP4574144B2 true JP4574144B2 (ja) 2010-11-04

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JP2003317325A Expired - Fee Related JP4574144B2 (ja) 2003-09-09 2003-09-09 デジタルクランプ装置、デジタルクランプ方法、及びプログラム及び記憶媒体

Country Status (2)

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US (1) US7626623B2 (https=)
JP (1) JP4574144B2 (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007053691A (ja) * 2005-08-19 2007-03-01 Micron Technol Inc サブｌｓｂを用いた拡張デジタルデータ路構造
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
US8379848B2 (en) 2011-07-07 2013-02-19 Cape Light Institute, Inc. Method of providing a portable true random number generator based on the microstructure and noise found in digital images
US8750504B1 (en) 2011-07-07 2014-06-10 Cape Light Institute Incorporated Method of providing a portable true random number generator based on the microstructure and noise found in digital images
EP3920461A4 (en) * 2019-01-30 2022-02-23 Sony Group Corporation SENSING DEVICE AND ENCRYPTION METHOD
GB2589362B (en) * 2019-11-28 2022-10-26 Andor Tech Limited Method and apparatus for processing image sensor output to improve image quality

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56100572A (en) * 1980-01-17 1981-08-12 Fuji Photo Film Co Ltd Signal processing system of variable density picture
JPH0628386B2 (ja) * 1986-09-01 1994-04-13 株式会社日立製作所 デジタルブランキング再生回路
US5121446A (en) * 1989-02-10 1992-06-09 Canon Kabushiki Kaisha Image processing apparatus capable of obtaining multi-level data
US5153925A (en) * 1989-04-27 1992-10-06 Canon Kabushiki Kaisha Image processing apparatus
US5394250A (en) * 1991-03-10 1995-02-28 Canon Kabushiki Kaisha Image processing capable of handling multi-level image data without deterioration of image quality in highlight areas
JP3384673B2 (ja) * 1996-03-12 2003-03-10 三洋電機株式会社 ディジタルビデオカメラ
JP3428287B2 (ja) * 1996-04-12 2003-07-22 ソニー株式会社 クランプ回路およびそれを用いた撮像装置
JP3487074B2 (ja) 1996-04-12 2004-01-13 ソニー株式会社 映像信号クランプ装置及び方法
JPH1067127A (ja) * 1996-04-23 1998-03-10 Canon Inc インクジェット記録装置及び画像処理方法
US6236769B1 (en) * 1998-01-28 2001-05-22 Cognex Corporation Machine vision systems and methods for morphological transformation of an image with zero or other uniform offsets
US6347115B1 (en) * 1998-05-20 2002-02-12 Xerox Corporation Method and system for predictive coding of images treated with the Roberts Method
EP1095505A1 (en) * 1998-07-01 2001-05-02 Equator Technologies, Inc. Image processing circuit and method for modifying a pixel value
US6750910B1 (en) * 1998-07-15 2004-06-15 Texas Instruments Incorporated Optical black and offset correction in CCD signal processing
EP1043898A4 (en) * 1998-10-06 2008-05-07 Sony Corp CODING DEVICE AND METHOD, DECODING DEVICE AND METHOD AND RECORDING MEDIUM
JP2000307881A (ja) * 1999-04-16 2000-11-02 Hitachi Ltd 信号処理装置および信号処理方法
JP2001051831A (ja) * 1999-08-10 2001-02-23 Sony Corp 乱数発生装置及び乱数発生方法
JP2002232713A (ja) * 2001-02-06 2002-08-16 Mitsubishi Electric Corp 画像処理装置及び画像処理方法
US6952240B2 (en) * 2001-05-18 2005-10-04 Exar Corporation Image sampling circuit with a blank reference combined with the video input
US7084912B2 (en) * 2001-09-20 2006-08-01 Yuen-Shung Chieh Method for reducing coherent row-wise and column-wise fixed pattern noise in CMOS image sensors
JP3949931B2 (ja) * 2001-10-30 2007-07-25 株式会社ルネサステクノロジ 画像形成装置
JP4107059B2 (ja) * 2002-03-20 2008-06-25 富士ゼロックス株式会社 画像処理方法および画像処理装置
JP3919612B2 (ja) * 2002-06-28 2007-05-30 キヤノン株式会社 画像処理装置及び方法、並びにコンピュータプログラム及びコンピュータ可読記憶媒体
US7259787B2 (en) * 2003-03-27 2007-08-21 Eastman Kodak Company Digital black clamp circuit in electronic imaging systems

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Publication number Publication date
US7626623B2 (en) 2009-12-01
US20050052555A1 (en) 2005-03-10
JP2005086551A (ja) 2005-03-31

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