DE69522861T2 - Verfahren und Einrichtung zur Codeumwandlung von codiertem Datenstrom - Google Patents

Verfahren und Einrichtung zur Codeumwandlung von codiertem Datenstrom

Info

Publication number
DE69522861T2
DE69522861T2 DE69522861T DE69522861T DE69522861T2 DE 69522861 T2 DE69522861 T2 DE 69522861T2 DE 69522861 T DE69522861 T DE 69522861T DE 69522861 T DE69522861 T DE 69522861T DE 69522861 T2 DE69522861 T2 DE 69522861T2
Authority
DE
Germany
Prior art keywords
data stream
coded data
code conversion
code
conversion
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69522861T
Other languages
English (en)
Other versions
DE69522861D1 (de
Inventor
Gerrit Johan Keesman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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
Priority claimed from FR9408105A external-priority patent/FR2722052A1/fr
Priority claimed from FR9410583A external-priority patent/FR2724280A1/fr
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE69522861D1 publication Critical patent/DE69522861D1/de
Application granted granted Critical
Publication of DE69522861T2 publication Critical patent/DE69522861T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/37—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability with arrangements for assigning different transmission priorities to video input data or to video coded 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
    • H04N19/40—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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
DE69522861T 1994-06-30 1995-06-22 Verfahren und Einrichtung zur Codeumwandlung von codiertem Datenstrom Expired - Lifetime DE69522861T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9408105A FR2722052A1 (fr) 1994-06-30 1994-06-30 Dispositif de transcodage d'une sequence de signaux numeriques
FR9410583A FR2724280A1 (fr) 1994-09-02 1994-09-02 Procede et dispositif de transcodage d'une sequence de signaux numeriques

Publications (2)

Publication Number Publication Date
DE69522861D1 DE69522861D1 (de) 2001-10-31
DE69522861T2 true DE69522861T2 (de) 2002-04-11

Family

ID=26231259

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69522861T Expired - Lifetime DE69522861T2 (de) 1994-06-30 1995-06-22 Verfahren und Einrichtung zur Codeumwandlung von codiertem Datenstrom

Country Status (4)

Country Link
US (1) US5729293A (de)
EP (1) EP0690392B1 (de)
JP (1) JP3720875B2 (de)
DE (1) DE69522861T2 (de)

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US6795501B1 (en) * 1997-11-05 2004-09-21 Intel Corporation Multi-layer coder/decoder for producing quantization error signal samples
JP4513856B2 (ja) * 1997-11-05 2010-07-28 ソニー株式会社 ディジタル信号変換方法およびディジタル信号変換装置
JP2008109701A (ja) * 1997-11-05 2008-05-08 Sony Corp ディジタル信号変換方法およびディジタル信号変換装置
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JPH11275592A (ja) * 1998-01-22 1999-10-08 Victor Co Of Japan Ltd 動画像符号列変換装置及びその方法
CA2265089C (en) 1998-03-10 2007-07-10 Sony Corporation Transcoding system using encoding history information
US6466623B1 (en) * 1998-03-27 2002-10-15 Industrial Technology Research Institute Method and apparatus for motion estimation for high performance transcoding
WO1999051033A2 (en) * 1998-03-31 1999-10-07 Koninklijke Philips Electronics N.V. Method and device for modifying data in an encoded data stream
US6477706B1 (en) 1998-05-01 2002-11-05 Cogent Technology, Inc. Cable television system using transcoding method
US6215824B1 (en) * 1998-05-01 2001-04-10 Boom Corporation Transcoding method for digital video networking
US6226328B1 (en) * 1998-05-01 2001-05-01 Boom Corporation Transcoding apparatus for digital video networking
US6483543B1 (en) * 1998-07-27 2002-11-19 Cisco Technology, Inc. System and method for transcoding multiple channels of compressed video streams using a self-contained data unit
US6229852B1 (en) * 1998-10-26 2001-05-08 Sony Corporation Reduced-memory video decoder for compressed high-definition video data
JP2002530949A (ja) 1998-11-17 2002-09-17 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 動きベクトル選択を含む符号化されたビデオ信号をトランスコーディングする方法及び対応するトランスコーダ
EP1069779B1 (de) * 1999-02-09 2016-04-13 Sony Corporation Kodiersystem und entsprechendes verfahren
JP3694888B2 (ja) * 1999-12-03 2005-09-14 ソニー株式会社 復号装置および方法、符号化装置および方法、情報処理装置および方法、並びに記録媒体
JP3871840B2 (ja) 1999-12-24 2007-01-24 日本電気株式会社 圧縮動画像再符号化装置
WO2001052547A1 (en) * 2000-01-14 2001-07-19 Koninklijke Philips Electronics N.V. Simplified logo insertion in encoded signal
EP1175787A1 (de) * 2000-02-04 2002-01-30 Koninklijke Philips Electronics N.V. Quantisierungsverfahren für bitratentranskodierungsanwendungen
JP3561485B2 (ja) * 2000-08-18 2004-09-02 株式会社メディアグルー 符号化信号分離・合成装置、差分符号化信号生成装置、符号化信号分離・合成方法、差分符号化信号生成方法、符号化信号分離・合成プログラムを記録した媒体および差分符号化信号生成プログラムを記録した媒体
US6711212B1 (en) 2000-09-22 2004-03-23 Industrial Technology Research Institute Video transcoder, video transcoding method, and video communication system and method using video transcoding with dynamic sub-window skipping
CN1253006C (zh) 2000-10-24 2006-04-19 皇家菲利浦电子有限公司 代码转换方法和具有嵌入式滤波器的代码转换装置
US6650707B2 (en) 2001-03-02 2003-11-18 Industrial Technology Research Institute Transcoding apparatus and method
DE10119214A1 (de) * 2001-04-19 2002-10-24 Highlight Comm Ag Pfaeffikon Verfahren zum Komprimieren von Videodaten
FR2823943A1 (fr) * 2001-04-24 2002-10-25 Koninkl Philips Electronics Nv Procede de detection de bruit dans un flux de donnees video codees
JP2004521583A (ja) * 2001-07-10 2004-07-15 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 非スケーラブル符号化ビデオ信号からスケーラブル符号化ビデオ信号を発生する方法及び装置
US7236529B2 (en) * 2001-10-30 2007-06-26 Industrial Technology Research Institute Methods and systems for video transcoding in DCT domain with low complexity
JP2003173625A (ja) * 2001-12-04 2003-06-20 Hitachi Ltd ファイル変換方法、ファイル変換装置、及びファイル生成装置
US6700935B2 (en) * 2002-02-08 2004-03-02 Sony Electronics, Inc. Stream based bitrate transcoder for MPEG coded video
US7936814B2 (en) * 2002-03-28 2011-05-03 International Business Machines Corporation Cascaded output for an encoder system using multiple encoders
JP4346868B2 (ja) * 2002-06-17 2009-10-21 株式会社日立製作所 動画符号化装置、及び動画記録再生装置、及び動画再生装置、及び動画符号化方法ならびに動画記録再生方法
KR100533025B1 (ko) * 2003-03-06 2005-12-02 엘지전자 주식회사 동영상 데이터의 분할장치 및 방법
JP4196726B2 (ja) * 2003-05-14 2008-12-17 ソニー株式会社 画像処理装置および画像処理方法、記録媒体、並びに、プログラム
US7675970B2 (en) * 2004-01-12 2010-03-09 General Instrument Corporation Method and apparatus for processing a bitstream in a digital video transcoder
TWI230547B (en) * 2004-02-04 2005-04-01 Ind Tech Res Inst Low-complexity spatial downscaling video transcoder and method thereof
US20080101473A1 (en) * 2006-10-26 2008-05-01 Matsushita Electric Industrial Co., Ltd. Transcoding apparatus and transcoding method
JP4539661B2 (ja) * 2007-02-08 2010-09-08 日本電気株式会社 圧縮動画像の再符号化方法及び装置
JP5401909B2 (ja) * 2008-10-16 2014-01-29 富士通株式会社 トランスコード装置およびトランスコード方法

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GB9015986D0 (en) * 1990-07-20 1990-09-05 Philips Electronic Associated Image display
JPH0530493A (ja) * 1991-07-24 1993-02-05 Sony Corp デイジタルビデオ信号の復号化装置
US5287420A (en) * 1992-04-08 1994-02-15 Supermac Technology Method for image compression on a personal computer
US5294974A (en) 1992-07-24 1994-03-15 Matsushita Electric Corporation Of America High-definition video encoding system having color-sensitive quantization
JP3196906B2 (ja) * 1992-08-21 2001-08-06 富士ゼロックス株式会社 画像信号の符号化装置
NL9201640A (nl) * 1992-09-22 1994-04-18 Nederland Ptt Systeem omvattende ten minste één encoder voor het coderen van een digitaal signaal en ten minste één decoder voor het decoderen van een digitaal signaal, en encoder en decoder voor toepassing in het systeem volgens de uitvinding.

Also Published As

Publication number Publication date
DE69522861D1 (de) 2001-10-31
EP0690392B1 (de) 2001-09-26
JP3720875B2 (ja) 2005-11-30
JPH0851631A (ja) 1996-02-20
EP0690392A1 (de) 1996-01-03
US5729293A (en) 1998-03-17

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