CN101605265B - 解码设备及其控制方法 - Google Patents

解码设备及其控制方法 Download PDF

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Publication number
CN101605265B
CN101605265B CN2009101473302A CN200910147330A CN101605265B CN 101605265 B CN101605265 B CN 101605265B CN 2009101473302 A CN2009101473302 A CN 2009101473302A CN 200910147330 A CN200910147330 A CN 200910147330A CN 101605265 B CN101605265 B CN 101605265B
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signal
picture quality
quality enhancing
unit
orthogonal transformation
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CN2009101473302A
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Chinese (zh)
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CN101605265A (zh
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铃木正树
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Canon Inc
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Canon Inc
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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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
    • 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
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CN2009101473302A 2008-06-11 2009-06-11 解码设备及其控制方法 Expired - Fee Related CN101605265B (zh)

Applications Claiming Priority (3)

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JP2008153395A JP5102122B2 (ja) 2008-06-11 2008-06-11 復号化装置及び復号化方法
JP2008153395 2008-06-11
JP2008-153395 2008-06-11

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CN101605265A CN101605265A (zh) 2009-12-16
CN101605265B true CN101605265B (zh) 2011-11-30

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013165476A (ja) * 2011-11-11 2013-08-22 Mitsubishi Electric Corp 画像処理装置、画像処理方法、画像表示装置、プログラム及び記録媒体
TWI627857B (zh) * 2012-06-29 2018-06-21 Sony Corp Image processing device and method
GB2521607B (en) * 2013-12-23 2016-03-23 Nordic Semiconductor Asa Integrated-Circuit Radio

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5850484A (en) * 1995-03-27 1998-12-15 Hewlett-Packard Co. Text and image sharpening of JPEG compressed images in the frequency domain
CN1547853A (zh) * 2002-05-03 2004-11-17 ���ǵ�����ʽ���� 用于消除区块效应和/或铃振噪声的滤波方法和装置

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JP2831139B2 (ja) * 1991-01-10 1998-12-02 オリンパス光学工業株式会社 画像信号復号化装置
US5379122A (en) * 1992-10-02 1995-01-03 Xerox Corporation Decompression of standard ADCT-compressed images
JP3825825B2 (ja) 1995-12-28 2006-09-27 キヤノン株式会社 フィルタ装置
US6463182B1 (en) * 1995-12-28 2002-10-08 Canon Kabushiki Kaisha Image processing apparatus and method for removing noise near an edge of an image
JP4028900B2 (ja) * 1996-01-11 2007-12-26 富士通株式会社 動画像符号化装置及び動画像復号化装置
US7062098B1 (en) * 2000-05-12 2006-06-13 International Business Machines Corporation Method and apparatus for the scaling down of data
JP2003018600A (ja) * 2001-07-04 2003-01-17 Hitachi Ltd 画像復号装置
US7356190B2 (en) * 2002-07-02 2008-04-08 Canon Kabushiki Kaisha Image area extraction method, image reconstruction method using the extraction result and apparatus thereof
JP4702928B2 (ja) * 2004-03-12 2011-06-15 キヤノン株式会社 動画像符号化装置及び復号装置及びその制御方法、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
JP2005295505A (ja) * 2004-03-12 2005-10-20 Canon Inc 動画像符号化装置及び動画像復号装置及びそれらの制御方法、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
JP2006333436A (ja) * 2005-01-07 2006-12-07 Ntt Docomo Inc 動画像符号化装置、動画像復号装置、動画像符号化方法、動画像復号方法、動画像符号化プログラム、及び、動画像復号プログラム
JP4775756B2 (ja) * 2005-03-18 2011-09-21 富士ゼロックス株式会社 復号化装置及びそのプログラム
JP4737711B2 (ja) * 2005-03-23 2011-08-03 富士ゼロックス株式会社 復号化装置、逆量子化方法、分布決定方法及びこのプログラム
US7778468B2 (en) * 2005-03-23 2010-08-17 Fuji Xerox Co., Ltd. Decoding apparatus, dequantizing method, and program thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5850484A (en) * 1995-03-27 1998-12-15 Hewlett-Packard Co. Text and image sharpening of JPEG compressed images in the frequency domain
CN1547853A (zh) * 2002-05-03 2004-11-17 ���ǵ�����ʽ���� 用于消除区块效应和/或铃振噪声的滤波方法和装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JP特开2000-299860A 2000.10.24
JP特开2003-189107A 2003.07.04

Also Published As

Publication number Publication date
US20090310878A1 (en) 2009-12-17
CN101605265A (zh) 2009-12-16
US8452114B2 (en) 2013-05-28
JP2009302777A (ja) 2009-12-24
JP5102122B2 (ja) 2012-12-19

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