JP5102122B2 - 復号化装置及び復号化方法 - Google Patents

復号化装置及び復号化方法 Download PDF

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Publication number
JP5102122B2
JP5102122B2 JP2008153395A JP2008153395A JP5102122B2 JP 5102122 B2 JP5102122 B2 JP 5102122B2 JP 2008153395 A JP2008153395 A JP 2008153395A JP 2008153395 A JP2008153395 A JP 2008153395A JP 5102122 B2 JP5102122 B2 JP 5102122B2
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Japan
Prior art keywords
image
orthogonal transform
inverse orthogonal
quantization
decoding
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JP2008153395A
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English (en)
Japanese (ja)
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JP2009302777A5 (enExample
JP2009302777A (ja
Inventor
正樹 鈴木
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Canon Inc
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Canon Inc
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Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2008153395A priority Critical patent/JP5102122B2/ja
Priority to US12/475,929 priority patent/US8452114B2/en
Priority to CN2009101473302A priority patent/CN101605265B/zh
Publication of JP2009302777A publication Critical patent/JP2009302777A/ja
Publication of JP2009302777A5 publication Critical patent/JP2009302777A5/ja
Application granted granted Critical
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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)
JP2008153395A 2008-06-11 2008-06-11 復号化装置及び復号化方法 Expired - Fee Related JP5102122B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008153395A JP5102122B2 (ja) 2008-06-11 2008-06-11 復号化装置及び復号化方法
US12/475,929 US8452114B2 (en) 2008-06-11 2009-06-01 Decoding apparatus and control method thereof
CN2009101473302A CN101605265B (zh) 2008-06-11 2009-06-11 解码设备及其控制方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008153395A JP5102122B2 (ja) 2008-06-11 2008-06-11 復号化装置及び復号化方法

Publications (3)

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JP2009302777A JP2009302777A (ja) 2009-12-24
JP2009302777A5 JP2009302777A5 (enExample) 2011-07-28
JP5102122B2 true JP5102122B2 (ja) 2012-12-19

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JP2008153395A Expired - Fee Related JP5102122B2 (ja) 2008-06-11 2008-06-11 復号化装置及び復号化方法

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US (1) US8452114B2 (enExample)
JP (1) JP5102122B2 (enExample)
CN (1) CN101605265B (enExample)

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

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP3703195B2 (ja) * 1995-03-27 2005-10-05 ヒューレット・パッカード・カンパニー カラー画像伝送装置
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
KR100846774B1 (ko) * 2002-05-03 2008-07-16 삼성전자주식회사 블록킹 효과를 제거하기 위한 필터링 방법 및 그 장치
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

Also Published As

Publication number Publication date
CN101605265B (zh) 2011-11-30
US20090310878A1 (en) 2009-12-17
CN101605265A (zh) 2009-12-16
US8452114B2 (en) 2013-05-28
JP2009302777A (ja) 2009-12-24

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