DE69522861D1 - Verfahren und Einrichtung zur Codeumwandlung von codiertem Datenstrom - Google Patents
Verfahren und Einrichtung zur Codeumwandlung von codiertem DatenstromInfo
- Publication number
- DE69522861D1 DE69522861D1 DE69522861T DE69522861T DE69522861D1 DE 69522861 D1 DE69522861 D1 DE 69522861D1 DE 69522861 T DE69522861 T DE 69522861T DE 69522861 T DE69522861 T DE 69522861T DE 69522861 D1 DE69522861 D1 DE 69522861D1
- 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
Links
- 238000006243 chemical reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
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
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 true DE69522861D1 (de) | 2001-10-31 |
DE69522861T2 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) |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5715009A (en) | 1994-03-29 | 1998-02-03 | Sony Corporation | Picture signal transmitting method and apparatus |
EP0687112B1 (de) * | 1994-06-08 | 2006-09-20 | Matsushita Electric Industrial Co., Ltd. | Bildumsetzungsvorrichtung |
US5617142A (en) * | 1994-11-08 | 1997-04-01 | General Instrument Corporation Of Delaware | Method and apparatus for changing the compression level of a compressed digital signal |
US5956088A (en) * | 1995-11-21 | 1999-09-21 | Imedia Corporation | Method and apparatus for modifying encoded digital video for improved channel utilization |
AU2453897A (en) * | 1996-04-12 | 1997-11-07 | Imedia Corporation | Video transcoder |
JPH1051766A (ja) | 1996-08-05 | 1998-02-20 | Mitsubishi Electric Corp | 画像符号化データ変換装置 |
US6005624A (en) * | 1996-12-20 | 1999-12-21 | Lsi Logic Corporation | System and method for performing motion compensation using a skewed tile storage format for improved efficiency |
KR100273110B1 (ko) * | 1997-02-26 | 2000-12-01 | 윤종용 | 엠펙 시스템 디코더 및 이 디코더의 데이터 처리 방법 |
US5907374A (en) * | 1997-06-30 | 1999-05-25 | Hewlett-Packard Company | Method and apparatus for processing a compressed input bitstream representing an information signal |
WO1999005870A2 (en) * | 1997-07-22 | 1999-02-04 | Koninklijke Philips Electronics N.V. | Method of switching between video sequences and corresponding device |
US6594311B1 (en) * | 1997-10-20 | 2003-07-15 | Hitachi America, Ltd. | Methods for reduced cost insertion of video subwindows into compressed video |
JP4605212B2 (ja) * | 1997-11-05 | 2011-01-05 | 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 |
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 |
KR100592651B1 (ko) * | 1997-11-27 | 2006-06-23 | 브리티쉬 텔리커뮤니케이션즈 파블릭 리미티드 캄퍼니 | 트랜스코딩 방법 및 장치 |
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 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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. |
-
1995
- 1995-06-22 EP EP95201690A patent/EP0690392B1/de not_active Expired - Lifetime
- 1995-06-22 DE DE69522861T patent/DE69522861T2/de not_active Expired - Lifetime
- 1995-06-29 JP JP16368095A patent/JP3720875B2/ja not_active Expired - Fee Related
- 1995-06-29 US US08/496,344 patent/US5729293A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0690392B1 (de) | 2001-09-26 |
JP3720875B2 (ja) | 2005-11-30 |
DE69522861T2 (de) | 2002-04-11 |
JPH0851631A (ja) | 1996-02-20 |
EP0690392A1 (de) | 1996-01-03 |
US5729293A (en) | 1998-03-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |