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WO2008090793A1 - 画像再符号化装置、画像再符号化方法及び画像符号化プログラム - Google Patents

画像再符号化装置、画像再符号化方法及び画像符号化プログラム Download PDF

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Publication number
WO2008090793A1
WO2008090793A1 PCT/JP2008/050490 JP2008050490W WO2008090793A1 WO 2008090793 A1 WO2008090793 A1 WO 2008090793A1 JP 2008050490 W JP2008050490 W JP 2008050490W WO 2008090793 A1 WO2008090793 A1 WO 2008090793A1
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WIPO (PCT)
Prior art keywords
encoding
image
encoding method
image data
block
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Ceased
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PCT/JP2008/050490
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English (en)
French (fr)
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Shoji Yachida
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NEC Corp
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NEC Corp
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Priority to JP2008555024A priority Critical patent/JP5418756B2/ja
Priority to US12/524,020 priority patent/US8326064B2/en
Publication of WO2008090793A1 publication Critical patent/WO2008090793A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04N19/865—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 with detection of the former encoding block subdivision in decompressed video
    • 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
    • H04N19/134—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
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/134—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
    • H04N19/16—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter for a given display mode, e.g. for interlaced or progressive display mode
    • 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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
    • 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
    • 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
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

第１の符号化方法で符号化された画像データを第２の符号化方法に従って再符号化を行う際、ブロック歪みの削減とメモリの削減を同時に満たす画像再符号方法を提供する。 画像データであって、第１の符号化方法によりブロック毎に符号化されたものを復号する復号ステップと、前記復号ステップで復号された前記画像データを第２の符号化方法によりブロック毎に符号化する符号化ステップと、を備える画像再符号化方法であって、前記符号化ステップは、前記第１の符号化方法により符号化された画像データを利用して前記第１の符号化方法により符号化された画像データのブロック境界部分を検出する境界部分検出ステップと、前記境界部分検出ステップで検出された前記ブロック境界部分に対し、デブロッキングフィルタ処理を施すデブロッキングステップと、を備える。
PCT/JP2008/050490 2007-01-22 2008-01-17 画像再符号化装置、画像再符号化方法及び画像符号化プログラム Ceased WO2008090793A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008555024A JP5418756B2 (ja) 2007-01-22 2008-01-17 画像再符号化装置、画像再符号化方法及び画像再符号化プログラム
US12/524,020 US8326064B2 (en) 2007-01-22 2008-01-17 Image re-encoding method to decode image data which is orthogonally transformed per first block and encoded by a first encoding method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-011329 2007-01-22
JP2007011329 2007-01-22

Publications (1)

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WO2008090793A1 true WO2008090793A1 (ja) 2008-07-31

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Country Status (5)

Country Link
US (1) US8326064B2 (ja)
JP (1) JP5418756B2 (ja)
CN (1) CN101589624A (ja)
TW (1) TW200847792A (ja)
WO (1) WO2008090793A1 (ja)

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JP2008205534A (ja) * 2007-02-16 2008-09-04 Matsushita Electric Ind Co Ltd 符号化方式変換装置
JP2010088083A (ja) * 2008-10-03 2010-04-15 Sony Corp 画像表示システム、画像再生装置及び表示装置
JP2022524963A (ja) * 2019-03-17 2022-05-11 インターナショナル・ビジネス・マシーンズ・コーポレーション ライブ・ストリーミング・ビデオの低遅延のコンテンツの無害化および再構築（ｃｄｒ）
JP2023528180A (ja) * 2021-04-30 2023-07-04 テンセント・アメリカ・エルエルシー ポストフィルタリングを伴うニューラル画像圧縮におけるブロック単位のコンテンツ適応オンライン訓練の方法、装置、およびコンピュータプログラム

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JP4656452B2 (ja) * 2008-05-20 2011-03-23 ソニー株式会社 画像信号処理装置および画像信号処理方法、予測係数生成装置および予測係数生成処理方法、並びに各方法をコンピュータに実行させるためのプログラム
JP5137687B2 (ja) * 2008-05-23 2013-02-06 キヤノン株式会社 復号装置及び復号方法、プログラム
FR2951891B1 (fr) * 2009-10-22 2011-12-30 Viaccess Sa Procedes d'emission et de reception de flux d'images, support d'enregistrement, dispositif d'emission, module de transformation pour ces procedes
CN102104777B (zh) * 2009-12-16 2016-10-05 晨星软件研发(深圳)有限公司 区块边界侦测方法及区块边界侦测装置
JP2011151431A (ja) * 2009-12-25 2011-08-04 Sony Corp 画像処理装置および方法
US8471890B1 (en) * 2009-12-30 2013-06-25 Insors Integrated Communications Adaptive video communication channel
CN103119937B (zh) * 2010-07-20 2016-02-10 Sk电信有限公司 用于解块滤波的方法和装置以及利用该方法和装置进行编码和解码的方法和装置
KR20120012385A (ko) * 2010-07-31 2012-02-09 오수미 인트라 예측 부호화 장치
KR101963097B1 (ko) * 2010-12-07 2019-03-27 소니 주식회사 화상 처리 장치 및 화상 처리 방법
KR101607781B1 (ko) 2011-06-30 2016-03-30 미쓰비시덴키 가부시키가이샤 화상 부호화 장치, 화상 복호 장치, 화상 부호화 방법, 화상 복호 방법 및 기억 매체
US20130170543A1 (en) * 2011-12-30 2013-07-04 Ning Lu Systems, methods, and computer program products for streaming out of data for video transcoding and other applications
AR092786A1 (es) * 2012-01-09 2015-05-06 Jang Min Metodos para eliminar artefactos de bloque
MX347522B (es) * 2012-04-13 2017-04-27 Mitsubishi Electric Corp Dispositivo de codificación de imagen, dispositvo de decodificación de imagen, método de codificación de imagen, y método de decodificación de imagen.
RU2616548C2 (ru) * 2012-10-19 2017-04-17 КОЛЕН, Жан-Клод Обратимый способ преобразования файла, закодированного первым кодированием, в файл, закодированный вторым кодированием
WO2017217656A1 (ko) * 2016-06-15 2017-12-21 주식회사 에벤에셀케이 동영상 압축방법, 장치 및 이에 대한 컴퓨터 프로그램
KR101930389B1 (ko) * 2016-06-15 2019-01-02 주식회사 에벤에셀케이 동영상 압축방법, 장치 및 이에 대한 컴퓨터 프로그램
AU2016273973A1 (en) * 2016-12-16 2018-07-05 Canon Kabushiki Kaisha Transcode PCL delta-row compressed image to edges
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JP7372013B2 (ja) 2019-03-17 2023-10-31 インターナショナル・ビジネス・マシーンズ・コーポレーション ライブ・ストリーミング・ビデオの低遅延のコンテンツの無害化および再構築（ｃｄｒ）
JP2023528180A (ja) * 2021-04-30 2023-07-04 テンセント・アメリカ・エルエルシー ポストフィルタリングを伴うニューラル画像圧縮におけるブロック単位のコンテンツ適応オンライン訓練の方法、装置、およびコンピュータプログラム

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JP5418756B2 (ja) 2014-02-19
CN101589624A (zh) 2009-11-25
JPWO2008090793A1 (ja) 2010-05-20
US8326064B2 (en) 2012-12-04
TW200847792A (en) 2008-12-01
US20100086225A1 (en) 2010-04-08

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