ES2171312T3 - Transcodificacion. - Google Patents
Transcodificacion.Info
- Publication number
- ES2171312T3 ES2171312T3 ES98955804T ES98955804T ES2171312T3 ES 2171312 T3 ES2171312 T3 ES 2171312T3 ES 98955804 T ES98955804 T ES 98955804T ES 98955804 T ES98955804 T ES 98955804T ES 2171312 T3 ES2171312 T3 ES 2171312T3
- Authority
- ES
- Spain
- Prior art keywords
- vectors
- frame
- coding
- coding system
- frames
- 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
- 239000013598 vector Substances 0.000 abstract 8
Classifications
-
- 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
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
Landscapes
- 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
Transcodificador que comprende un decodificador para decodificar una señal de vídeo recibida según un primer sistema de codificación que emplea codificación predictiva intertrama con compensación de movimiento, en el que las tramas se codifican fuera de secuencia de manera que la codificación de algunas tramas requiere la predicción de una trama posterior utilizando vectores de movimiento hacia atrás, y un codificador para codificar de nuevo la señal según un segundo sistema de codificación, en el que por lo menos algunas tramas se codifican utilizando codificación predictiva intertrama con compensación de movimiento basada en una trama de referencia que no es igual en el segundo sistema de codificación que en el primer sistema de codificación, caracterizado porque el transcodificador incluye medios de procesamiento de vectores de movimiento (32) para generar un vector de movimiento estimado para una trama actual de la señal de vídeo, estando conectados los medios de procesamiento de vectores de movimiento para recibir, cuando se procesan vectores de procesamiento para una trama actual, vectores que, en la señal recibida, acompañan por lo menos a otra trama de la señal de vídeo, y siendo apto para invertir el signo de los vectores de movimiento hacia atrás cuando se generan vectores de movimiento estimados para ser utilizados por el codificador cuando se está recodificando mediante predicción hacia delante.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97309575 | 1997-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2171312T3 true ES2171312T3 (es) | 2002-09-01 |
Family
ID=8229639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES98955804T Expired - Lifetime ES2171312T3 (es) | 1997-11-27 | 1998-11-27 | Transcodificacion. |
Country Status (11)
Country | Link |
---|---|
US (1) | US6625320B1 (es) |
EP (1) | EP1010330B1 (es) |
JP (1) | JP4132664B2 (es) |
KR (1) | KR100592651B1 (es) |
CN (1) | CN1156164C (es) |
AU (1) | AU744535B2 (es) |
CA (1) | CA2303516C (es) |
DE (1) | DE69803195T2 (es) |
ES (1) | ES2171312T3 (es) |
HK (1) | HK1029694A1 (es) |
WO (1) | WO1999029113A1 (es) |
Families Citing this family (58)
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---|---|---|---|---|
US6466623B1 (en) * | 1998-03-27 | 2002-10-15 | Industrial Technology Research Institute | Method and apparatus for motion estimation for high performance transcoding |
JP3855522B2 (ja) * | 1999-02-23 | 2006-12-13 | 松下電器産業株式会社 | 動画変換装置 |
EP1083750A3 (en) * | 1999-09-10 | 2009-09-23 | NTT DoCoMo, Inc. | Method and apparatus for transcoding coded video image data |
DE60143927D1 (de) | 2000-03-13 | 2011-03-10 | Sony Corp | Verfahren und vorrichtung zur erzeugung von kompakten metadateien für transcodierungshinweise |
US7058127B2 (en) * | 2000-12-27 | 2006-06-06 | International Business Machines Corporation | Method and system for video transcoding |
GB2369952B (en) * | 2001-03-10 | 2002-12-04 | Ericsson Telefon Ab L M | Transcoding of video signals |
US7236529B2 (en) | 2001-10-30 | 2007-06-26 | Industrial Technology Research Institute | Methods and systems for video transcoding in DCT domain with low complexity |
US7173947B1 (en) * | 2001-11-28 | 2007-02-06 | Cisco Technology, Inc. | Methods and apparatus to evaluate statistical remultiplexer performance |
US20030105880A1 (en) * | 2001-12-04 | 2003-06-05 | Koninklijke Philips Electronics N.V. | Distributed processing, storage, and transmision of multimedia information |
KR100446083B1 (ko) * | 2002-01-02 | 2004-08-30 | 삼성전자주식회사 | 움직임 추정 및 모드 결정 장치 및 방법 |
JP4193406B2 (ja) * | 2002-04-16 | 2008-12-10 | 三菱電機株式会社 | 映像データ変換装置および映像データ変換方法 |
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 |
AU2004214313B2 (en) | 2003-02-18 | 2010-05-20 | Nokia Technologies Oy | Picture coding method |
MXPA05008405A (es) * | 2003-02-18 | 2005-10-05 | Nokia Corp | Metodo de descodificacion de imagen. |
US7133452B1 (en) * | 2003-02-24 | 2006-11-07 | Vixs Systems, Inc. | Method and system for transcoding video data |
US7327784B2 (en) * | 2003-02-24 | 2008-02-05 | Vixs Systems, Inc. | Method and system for transcoding video data |
US7606305B1 (en) | 2003-02-24 | 2009-10-20 | Vixs Systems, Inc. | Method and system for transcoding video data |
KR100693669B1 (ko) * | 2003-03-03 | 2007-03-09 | 엘지전자 주식회사 | 피일드 매크로 블록의 레퍼런스 픽쳐 결정 방법 |
US20070036218A1 (en) * | 2003-04-17 | 2007-02-15 | Koninklijke Philips Electronics N.V. Groenewoudseweg 1 | Video transcoding |
US8621542B2 (en) * | 2003-08-11 | 2013-12-31 | Warner Bros. Entertainment Inc. | Digital media distribution device |
JP4470431B2 (ja) * | 2003-10-01 | 2010-06-02 | ソニー株式会社 | データ処理装置およびその方法 |
KR100965881B1 (ko) * | 2003-10-10 | 2010-06-24 | 삼성전자주식회사 | 비디오 데이터 인코딩 시스템 및 디코딩 시스템 |
KR100595616B1 (ko) * | 2003-11-24 | 2006-06-30 | 엘지전자 주식회사 | 디지털 동영상 트랜스코딩을 위한 움직임 추정 방법 |
US20050201471A1 (en) * | 2004-02-13 | 2005-09-15 | Nokia Corporation | Picture decoding method |
US7296205B2 (en) | 2004-02-18 | 2007-11-13 | Nokia Corporation | Data repair |
US20070230805A1 (en) * | 2004-07-27 | 2007-10-04 | Yoshihisa Yamada | Coded Data Recording Apparatus, Decoding Apparatus and Program |
US9124907B2 (en) | 2004-10-04 | 2015-09-01 | Nokia Technologies Oy | Picture buffering method |
KR100679022B1 (ko) * | 2004-10-18 | 2007-02-05 | 삼성전자주식회사 | 계층간 필터링을 이용한 비디오 코딩 및 디코딩방법과,비디오 인코더 및 디코더 |
US20060210156A1 (en) * | 2005-03-18 | 2006-09-21 | Sharp Laboratories Of America, Inc. | Video compression for raw rgb format using residual color transform |
US8045618B2 (en) * | 2005-08-05 | 2011-10-25 | Lsi Corporation | Method and apparatus for MPEG-2 to VC-1 video transcoding |
US8208540B2 (en) * | 2005-08-05 | 2012-06-26 | Lsi Corporation | Video bitstream transcoding method and apparatus |
US7881384B2 (en) * | 2005-08-05 | 2011-02-01 | Lsi Corporation | Method and apparatus for H.264 to MPEG-2 video transcoding |
US7912127B2 (en) * | 2005-08-05 | 2011-03-22 | Lsi Corporation | H.264 to VC-1 and VC-1 to H.264 transcoding |
US7903739B2 (en) * | 2005-08-05 | 2011-03-08 | Lsi Corporation | Method and apparatus for VC-1 to MPEG-2 video transcoding |
US8155194B2 (en) * | 2005-08-05 | 2012-04-10 | Lsi Corporation | Method and apparatus for MPEG-2 to H.264 video transcoding |
US8559525B2 (en) * | 2005-10-21 | 2013-10-15 | Amimon Ltd. | Apparatus and method for uncompressed, wireless transmission of video |
US7860180B2 (en) * | 2005-10-21 | 2010-12-28 | Amimon Ltd | OFDM modem for transmission of continuous complex numbers |
US20070297612A1 (en) * | 2005-10-21 | 2007-12-27 | Meir Feder | Method, device and system of encrypted wireless communication |
EP1938624A4 (en) * | 2005-10-21 | 2009-10-28 | Amimon Ltd | APPARATUS AND METHOD FOR WIRELESS TRANSMISSION OF UNCOMPRESSED VIDEO |
ZA200805337B (en) | 2006-01-09 | 2009-11-25 | Thomson Licensing | Method and apparatus for providing reduced resolution update mode for multiview video coding |
WO2007106844A2 (en) | 2006-03-14 | 2007-09-20 | Divx, Inc. | Federated digital rights management scheme including trusted systems |
US8290036B2 (en) * | 2008-06-11 | 2012-10-16 | Optibase Technologies Ltd. | Method, apparatus and system for concurrent processing of multiple video streams |
EP2384475A4 (en) | 2009-01-07 | 2014-01-22 | Sonic Ip Inc | AUTOMATED SINGLE AND GROUP PRODUCTION OF A MEDIA LEADER FOR ONLINE CONTENT |
US8687685B2 (en) | 2009-04-14 | 2014-04-01 | Qualcomm Incorporated | Efficient transcoding of B-frames to P-frames |
WO2011068668A1 (en) | 2009-12-04 | 2011-06-09 | Divx, Llc | Elementary bitstream cryptographic material transport systems and methods |
US8914534B2 (en) | 2011-01-05 | 2014-12-16 | Sonic Ip, Inc. | Systems and methods for adaptive bitrate streaming of media stored in matroska container files using hypertext transfer protocol |
US9467708B2 (en) | 2011-08-30 | 2016-10-11 | Sonic Ip, Inc. | Selection of resolutions for seamless resolution switching of multimedia content |
US8909922B2 (en) | 2011-09-01 | 2014-12-09 | Sonic Ip, Inc. | Systems and methods for playing back alternative streams of protected content protected using common cryptographic information |
US8964977B2 (en) | 2011-09-01 | 2015-02-24 | Sonic Ip, Inc. | Systems and methods for saving encoded media streamed using adaptive bitrate streaming |
KR20150014496A (ko) | 2012-05-14 | 2015-02-06 | 루카 로사토 | 지원 정보에 기반한 잔차 데이터의 인코딩 및 복원 |
US9313510B2 (en) | 2012-12-31 | 2016-04-12 | Sonic Ip, Inc. | Use of objective quality measures of streamed content to reduce streaming bandwidth |
US9191457B2 (en) | 2012-12-31 | 2015-11-17 | Sonic Ip, Inc. | Systems, methods, and media for controlling delivery of content |
US10397292B2 (en) | 2013-03-15 | 2019-08-27 | Divx, Llc | Systems, methods, and media for delivery of content |
US9906785B2 (en) * | 2013-03-15 | 2018-02-27 | Sonic Ip, Inc. | Systems, methods, and media for transcoding video data according to encoding parameters indicated by received metadata |
US9094737B2 (en) | 2013-05-30 | 2015-07-28 | Sonic Ip, Inc. | Network video streaming with trick play based on separate trick play files |
US9967305B2 (en) | 2013-06-28 | 2018-05-08 | Divx, Llc | Systems, methods, and media for streaming media content |
US9866878B2 (en) | 2014-04-05 | 2018-01-09 | Sonic Ip, Inc. | Systems and methods for encoding and playing back video at different frame rates using enhancement layers |
US10498795B2 (en) | 2017-02-17 | 2019-12-03 | Divx, Llc | Systems and methods for adaptive switching between multiple content delivery networks during adaptive bitrate streaming |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9301358A (nl) * | 1993-08-04 | 1995-03-01 | Nederland Ptt | Transcodeerinrichting. |
US5473379A (en) * | 1993-11-04 | 1995-12-05 | At&T Corp. | Method and apparatus for improving motion compensation in digital video coding |
JP3031152B2 (ja) * | 1993-12-24 | 2000-04-10 | 日本電気株式会社 | 動き予測プロセッサ及び動き予測装置 |
EP0661885A1 (en) * | 1993-12-28 | 1995-07-05 | Canon Kabushiki Kaisha | Image processing method and apparatus for converting between data coded in different formats |
SG43051A1 (en) | 1994-04-21 | 1997-10-17 | British Telecomm | A transcoder |
US5940130A (en) * | 1994-04-21 | 1999-08-17 | British Telecommunications Public Limited Company | Video transcoder with by-pass transfer of extracted motion compensation data |
EP0690392B1 (en) | 1994-06-30 | 2001-09-26 | Koninklijke Philips Electronics N.V. | Method and device for transcoding a sequence of coded digital signals |
US5512953A (en) * | 1994-08-09 | 1996-04-30 | At&T Corp. | Method and apparatus for conversion of compressed bit stream representation of video signal |
JP3058028B2 (ja) | 1994-10-31 | 2000-07-04 | 三菱電機株式会社 | 画像符号化データ再符号化装置 |
US5600646A (en) * | 1995-01-27 | 1997-02-04 | Videoserver, Inc. | Video teleconferencing system with digital transcoding |
US5774206A (en) * | 1995-05-10 | 1998-06-30 | Cagent Technologies, Inc. | Process for controlling an MPEG decoder |
US5956088A (en) | 1995-11-21 | 1999-09-21 | Imedia Corporation | Method and apparatus for modifying encoded digital video for improved channel utilization |
JPH09182083A (ja) * | 1995-12-27 | 1997-07-11 | Matsushita Electric Ind Co Ltd | ビデオ画像符号化方法及び復号化方法とその装置 |
JPH1051766A (ja) * | 1996-08-05 | 1998-02-20 | Mitsubishi Electric Corp | 画像符号化データ変換装置 |
SE515535C2 (sv) | 1996-10-25 | 2001-08-27 | Ericsson Telefon Ab L M | En transkoder |
-
1998
- 1998-11-27 JP JP2000523808A patent/JP4132664B2/ja not_active Expired - Fee Related
- 1998-11-27 ES ES98955804T patent/ES2171312T3/es not_active Expired - Lifetime
- 1998-11-27 AU AU12528/99A patent/AU744535B2/en not_active Ceased
- 1998-11-27 US US09/485,597 patent/US6625320B1/en not_active Expired - Lifetime
- 1998-11-27 CA CA002303516A patent/CA2303516C/en not_active Expired - Fee Related
- 1998-11-27 EP EP98955804A patent/EP1010330B1/en not_active Expired - Lifetime
- 1998-11-27 WO PCT/GB1998/003553 patent/WO1999029113A1/en active IP Right Grant
- 1998-11-27 KR KR1020007004175A patent/KR100592651B1/ko not_active IP Right Cessation
- 1998-11-27 DE DE69803195T patent/DE69803195T2/de not_active Expired - Lifetime
- 1998-11-27 CN CNB988115794A patent/CN1156164C/zh not_active Expired - Lifetime
-
2000
- 2000-12-07 HK HK00107887A patent/HK1029694A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU1252899A (en) | 1999-06-16 |
DE69803195T2 (de) | 2002-08-29 |
HK1029694A1 (en) | 2001-04-06 |
US6625320B1 (en) | 2003-09-23 |
EP1010330A1 (en) | 2000-06-21 |
JP2001525638A (ja) | 2001-12-11 |
CN1156164C (zh) | 2004-06-30 |
KR20010031222A (ko) | 2001-04-16 |
CA2303516A1 (en) | 1999-06-10 |
CA2303516C (en) | 2007-09-11 |
JP4132664B2 (ja) | 2008-08-13 |
AU744535B2 (en) | 2002-02-28 |
CN1280743A (zh) | 2001-01-17 |
EP1010330B1 (en) | 2002-01-16 |
WO1999029113A1 (en) | 1999-06-10 |
DE69803195D1 (de) | 2002-02-21 |
KR100592651B1 (ko) | 2006-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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