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WO2008136164A1 - 復号化回路、復号化方法及び画像再生装置 - Google Patents

復号化回路、復号化方法及び画像再生装置 Download PDF

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Publication number
WO2008136164A1
WO2008136164A1 PCT/JP2008/000369 JP2008000369W WO2008136164A1 WO 2008136164 A1 WO2008136164 A1 WO 2008136164A1 JP 2008000369 W JP2008000369 W JP 2008000369W WO 2008136164 A1 WO2008136164 A1 WO 2008136164A1
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WO
WIPO (PCT)
Prior art keywords
coefficient
processing section
arithmetic processing
prediction
block
Prior art date
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PCT/JP2008/000369
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English (en)
French (fr)
Inventor
Naoki Yoshimatsu
Eri Hirai
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to US12/438,937 priority Critical patent/US8422562B2/en
Priority to EP08720283A priority patent/EP2073556A4/en
Priority to JP2009512870A priority patent/JPWO2008136164A1/ja
Priority to CN2008800006462A priority patent/CN101543080B/zh
Publication of WO2008136164A1 publication Critical patent/WO2008136164A1/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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • 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
    • H04N19/17—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 an image region, e.g. an object
    • H04N19/176—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 an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

　単一回路で各種の画像符号化方式に対応した復号化を行うとともに、汎用性を向上させる。 　係数選択処理部１１は、復号化対象ブロックに隣接する隣接ブロックのＤＣ係数及びＡＣ係数を選択し、係数演算処理部１２は、選択されたＤＣ係数及びＡＣ係数に演算処理を施し、係数比較処理部１３は、演算処理が施されたＤＣ係数に基づいて、水平方向及び垂直方向のブロック間相関関係を求め、方向判定処理部１４は、ブロック間相関関係を用いて予測方法を判定し、予測処理部１５は、判定された予測方法を用いて、演算処理が施されたＤＣ係数及びＡＣ係数を符号化データに加算し、制御部７は、符号化データの内容に応じて、係数選択処理部１１における選択方法、係数演算処理部１２における演算処理方法、方向判定処理部１４における判定方法及び予測処理部１５における予測処理方法のうちの一つ又は複数の方法を制御する。
PCT/JP2008/000369 2007-04-23 2008-02-27 復号化回路、復号化方法及び画像再生装置 WO2008136164A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/438,937 US8422562B2 (en) 2007-04-23 2008-02-27 Decoding circuit, decoding method, and image reproducing apparatus
EP08720283A EP2073556A4 (en) 2007-04-23 2008-02-27 DECODING CIRCUIT, DECODING METHOD AND IMAGE PLAYING DEVICE
JP2009512870A JPWO2008136164A1 (ja) 2007-04-23 2008-02-27 復号化回路、復号化方法及び画像再生装置
CN2008800006462A CN101543080B (zh) 2007-04-23 2008-02-27 解码电路、解码方法及图像再生装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007112553 2007-04-23
JP2007-112553 2007-04-23

Publications (1)

Publication Number Publication Date
WO2008136164A1 true WO2008136164A1 (ja) 2008-11-13

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PCT/JP2008/000369 WO2008136164A1 (ja) 2007-04-23 2008-02-27 復号化回路、復号化方法及び画像再生装置

Country Status (5)

Country Link
US (1) US8422562B2 (ja)
EP (1) EP2073556A4 (ja)
JP (1) JPWO2008136164A1 (ja)
CN (1) CN101543080B (ja)
WO (1) WO2008136164A1 (ja)

Cited By (1)

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CN101835039B (zh) * 2009-03-09 2013-07-31 联发科技股份有限公司 用于视频处理的方法、用于解量化和量化的电子装置

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* Cited by examiner, † Cited by third party
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US8773790B2 (en) * 2009-04-28 2014-07-08 Lsi Corporation Systems and methods for dynamic scaling in a read data processing system
JP5948437B2 (ja) 2012-01-06 2016-07-06 サンライズ アール アンド ディー ホールディングス，エルエルシー 製品情報表示用プロジェクタを有するディスプレイ棚モジュール及びこれを備えるモジュール型棚システム
CN103745443B (zh) * 2014-01-10 2017-06-13 北京优纳科技有限公司 提高图像质量的方法和设备
JP6785244B2 (ja) 2015-05-04 2020-11-18 サンライズ アール アンド ディー ホールディングス，エルエルシー 棚の表示ユニットを制御するためのシステムおよび方法、並びに棚の表示ユニットに情報をグラフィカルに提示するためのシステムおよび方法
US11418792B2 (en) * 2020-03-27 2022-08-16 Tencent America LLC Estimating attributes for the classification of adaptive loop filtering based on projection-slice theorem

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WO1999022524A1 (en) * 1997-10-23 1999-05-06 Mitsubishi Denki Kabushiki Kaisha Image decoder, image encoder, image communication system, and encoded bit stream converter
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Also Published As

Publication number Publication date
US20100014592A1 (en) 2010-01-21
JPWO2008136164A1 (ja) 2010-07-29
EP2073556A4 (en) 2012-01-25
CN101543080B (zh) 2012-06-20
US8422562B2 (en) 2013-04-16
EP2073556A1 (en) 2009-06-24
CN101543080A (zh) 2009-09-23

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