CA2265089A1 - Transcoding system using encoding history information - Google Patents

Transcoding system using encoding history information Download PDF

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Publication number
CA2265089A1
CA2265089A1 CA002265089A CA2265089A CA2265089A1 CA 2265089 A1 CA2265089 A1 CA 2265089A1 CA 002265089 A CA002265089 A CA 002265089A CA 2265089 A CA2265089 A CA 2265089A CA 2265089 A1 CA2265089 A1 CA 2265089A1
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Canada
Prior art keywords
encoding
present
encoding process
history information
encoding parameters
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Granted
Application number
CA002265089A
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French (fr)
Other versions
CA2265089C (en
Inventor
Katsumi Tahara
Yoshihiro Murakami
Takuya Kitamura
Kanji Mihara
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Sony Corp
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Sony Corp
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Publication of CA2265089A1 publication Critical patent/CA2265089A1/en
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Publication of CA2265089C publication Critical patent/CA2265089C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive 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
    • H04N19/10—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
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • 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
    • H04N19/115—Selection of the code volume for a coding unit prior to 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
    • H04N19/10—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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H04N19/426—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods
    • H04N19/428—Recompression, e.g. by spatial or temporal decimation
    • 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

Abstract

The present invention provides a transcoder for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process based on MPEG standards. According to the transcoder provided by the present invention, encoding parameters generated in a past encoding process can be transmitted to the MPEG encoder which performs a present encoding process as a history information. And optimum encoding parameters in commensurate with the present encoding process are selected from the transmitted encoding parameters, and the selected encoding parameters are reused in the present encoding process. As a result, the picture quality does not deteriorate even if decoding and encoding processes are carried out repeatedly.
CA002265089A 1998-03-10 1999-03-05 Transcoding system using encoding history information Expired - Fee Related CA2265089C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP5811898 1998-03-10
JPP10-058118 1998-03-10
JP15724398 1998-06-05
JPP10-157243 1998-06-05

Publications (2)

Publication Number Publication Date
CA2265089A1 true CA2265089A1 (en) 1999-09-10
CA2265089C CA2265089C (en) 2007-07-10

Family

ID=26399199

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002265089A Expired - Fee Related CA2265089C (en) 1998-03-10 1999-03-05 Transcoding system using encoding history information

Country Status (6)

Country Link
US (8) US6560282B2 (en)
EP (4) EP0942605A3 (en)
KR (2) KR100729541B1 (en)
CN (3) CN1599463A (en)
BR (1) BR9900981B1 (en)
CA (1) CA2265089C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116800976A (en) * 2023-07-17 2023-09-22 武汉星巡智能科技有限公司 Audio and video compression and restoration method, device and equipment for infant with sleep

Families Citing this family (120)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5715009A (en) 1994-03-29 1998-02-03 Sony Corporation Picture signal transmitting method and apparatus
CA2265089C (en) * 1998-03-10 2007-07-10 Sony Corporation Transcoding system using encoding history information
GB2339101B (en) * 1998-06-25 2002-09-18 Sony Uk Ltd Processing of compressed video signals using picture motion vectors
CN1241416C (en) 1999-02-09 2006-02-08 索尼公司 Coding system and its method, coding device and its method decoding device and its method, recording device and its method, and reproducing device and its method
JP4487374B2 (en) * 1999-06-01 2010-06-23 ソニー株式会社 Encoding apparatus, encoding method, multiplexing apparatus, and multiplexing method
KR100357093B1 (en) * 1999-06-02 2002-10-18 엘지전자 주식회사 apparatus and method for concealing error in moving picture decompression system
GB2350984B (en) * 1999-06-11 2003-10-15 Mitel Corp Synchronisation method and system
US6742019B1 (en) * 1999-07-23 2004-05-25 International Business Machines Corporation Sieved caching for increasing data rate capacity of a heterogeneous striping group
JP3694888B2 (en) * 1999-12-03 2005-09-14 ソニー株式会社 Decoding device and method, encoding device and method, information processing device and method, and recording medium
US20030099293A1 (en) * 1999-12-15 2003-05-29 Shigeyuki Okada Image reproducing method, and image processing method, and image reproducing device, image processing device, and television receiver capable of using the methods
JP3496604B2 (en) * 1999-12-20 2004-02-16 日本電気株式会社 Compressed image data reproducing apparatus and compressed image data reproducing method
FR2809573B1 (en) * 2000-05-26 2002-08-16 Thomson Broadcast Systems METHOD FOR ENCODING A VIDEO IMAGE STREAM
GB0013273D0 (en) * 2000-06-01 2000-07-26 Philips Electronics Nv Video signal encoding and buffer management
JP3519673B2 (en) * 2000-07-07 2004-04-19 松下電器産業株式会社 Video data creation device and video encoding device
KR100463764B1 (en) * 2000-07-21 2004-12-29 마츠시타 덴끼 산교 가부시키가이샤 Signal transmission system
US20030118102A1 (en) * 2000-11-10 2003-06-26 Weiping Li Encoding and decoding of truncated scalable bitstreams
JP3632591B2 (en) * 2000-11-13 2005-03-23 日本電気株式会社 Image processing apparatus, method, and computer-readable recording medium
GB2372657B (en) * 2001-02-21 2005-09-21 Sony Uk Ltd Signal processing
KR100814431B1 (en) * 2001-04-25 2008-03-18 삼성전자주식회사 Apparatus for transmitting broadcast signal, encoding system for encoding broadcast signal adapted variable bit rate and decoding system thereof
US7409094B2 (en) * 2001-05-04 2008-08-05 Hewlett-Packard Development Company, L.P. Methods and systems for packetizing encoded data
JP3548136B2 (en) * 2001-06-01 2004-07-28 三洋電機株式会社 Image processing device
KR100395396B1 (en) * 2001-06-15 2003-08-21 주식회사 성진씨앤씨 Method and apparatus for data compression of multi-channel moving pictures
GB0116119D0 (en) * 2001-06-30 2001-08-22 Koninkl Philips Electronics Nv Transcoding of video data streams
US9894379B2 (en) * 2001-07-10 2018-02-13 The Directv Group, Inc. System and methodology for video compression
US7804899B1 (en) * 2001-07-13 2010-09-28 Cisco Systems Canada Co. System and method for improving transrating of MPEG-2 video
KR100828343B1 (en) * 2001-08-04 2008-05-08 삼성전자주식회사 Method, apparatus and information storage medium for recording broadcast program
US7577333B2 (en) * 2001-08-04 2009-08-18 Samsung Electronics Co., Ltd. Method and apparatus for recording and reproducing video data, and information storage medium in which video data is recorded by the same
EP2819411B1 (en) * 2001-09-14 2018-08-29 NTT DoCoMo, Inc. Coding method and decoding method
CN101360239B (en) * 2001-09-14 2010-10-27 株式会社Ntt都科摩 Coding method, decoding method, coding apparatus, decoding apparatus, and image processing system
US7003035B2 (en) 2002-01-25 2006-02-21 Microsoft Corporation Video coding methods and apparatuses
JP4472347B2 (en) * 2002-01-30 2010-06-02 エヌエックスピー ビー ヴィ Streaming multimedia data over networks with variable bandwidth
JP3874179B2 (en) * 2002-03-14 2007-01-31 Ｋｄｄｉ株式会社 Encoded video converter
EP3525464B1 (en) * 2002-04-19 2021-03-03 Panasonic Intellectual Property Corporation of America Picture coding and decoding method and system
US20040001546A1 (en) 2002-06-03 2004-01-01 Alexandros Tourapis Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation
CN100367802C (en) * 2002-07-02 2008-02-06 松下电器产业株式会社 Motion vector deriving method, motion picture encoding method, and motion picture decoding method
US7154952B2 (en) 2002-07-19 2006-12-26 Microsoft Corporation Timestamp-independent motion vector prediction for predictive (P) and bidirectionally predictive (B) pictures
US20060050784A1 (en) * 2002-11-01 2006-03-09 Ville Lappalainen Method and device for transcoding images
US7403660B2 (en) 2003-04-30 2008-07-22 Nokia Corporation Encoding picture arrangement parameter in picture bitstream
JP4224778B2 (en) * 2003-05-14 2009-02-18 ソニー株式会社 STREAM CONVERTING APPARATUS AND METHOD, ENCODING APPARATUS AND METHOD, RECORDING MEDIUM, AND PROGRAM
JP4196726B2 (en) * 2003-05-14 2008-12-17 ソニー株式会社 Image processing apparatus, image processing method, recording medium, and program
JP4120934B2 (en) * 2003-06-16 2008-07-16 ソニー株式会社 Image processing apparatus, image processing method, recording medium, and program
JP2005065122A (en) * 2003-08-19 2005-03-10 Matsushita Electric Ind Co Ltd Dynamic image encoding device and its method
EP1672927A4 (en) * 2003-09-04 2010-06-16 Nec Corp Motion image data converting method, apparatus and program
JPWO2005043915A1 (en) * 2003-10-31 2007-05-10 株式会社Ｋｄｄｉメディアウィル Video analysis device and video failure detection device
TWI225363B (en) * 2003-11-10 2004-12-11 Mediatek Inc Method and apparatus for controlling quantization level of a video encoding bit stream
US8170096B1 (en) 2003-11-18 2012-05-01 Visible World, Inc. System and method for optimized encoding and transmission of a plurality of substantially similar video fragments
US9715898B2 (en) 2003-12-16 2017-07-25 Core Wireless Licensing S.A.R.L. Method and device for compressed-domain video editing
US7830959B2 (en) * 2003-12-26 2010-11-09 Electronics And Telecommunications Research Institute Apparatus and method for performing intra prediction for image decoder
US7797454B2 (en) * 2004-02-13 2010-09-14 Hewlett-Packard Development Company, L.P. Media data transcoding devices
US20050276548A1 (en) * 2004-06-10 2005-12-15 Jiang Fu Transcoding closed captioning data from broadcast DTV onto DVD
JP3827162B2 (en) * 2004-06-25 2006-09-27 ソニー株式会社 Data recording device
CN1998242B (en) * 2004-08-11 2010-07-07 株式会社日立制作所 Image encoding device and image decoding device
JP4655191B2 (en) * 2004-09-02 2011-03-23 ソニー株式会社 Information processing apparatus and method, recording medium, and program
JP4335779B2 (en) * 2004-10-28 2009-09-30 富士通マイクロエレクトロニクス株式会社 Encoding apparatus, recording apparatus using the same, encoding method, and recording method
JP2006174415A (en) * 2004-11-19 2006-06-29 Ntt Docomo Inc Image decoding apparatus, image decoding program, image decoding method, image encoding apparatus, image encoding program, and image encoding method
US7991908B2 (en) * 2004-12-24 2011-08-02 Telecom Italia S.P.A. Media transcoding in multimedia delivery services
JP2006203682A (en) * 2005-01-21 2006-08-03 Nec Corp Converting device of compression encoding bit stream for moving image at syntax level and moving image communication system
KR100772373B1 (en) * 2005-02-07 2007-11-01 삼성전자주식회사 Apparatus for data processing using a plurality of data processing apparatus, method thereof, and recoding medium storing a program for implementing the method
US7373009B2 (en) * 2005-02-09 2008-05-13 Lsi Corporation Method and apparatus for efficient transmission and decoding of quantization matrices
US20060222251A1 (en) * 2005-04-01 2006-10-05 Bo Zhang Method and system for frame/field coding
US7912127B2 (en) * 2005-08-05 2011-03-22 Lsi Corporation H.264 to VC-1 and VC-1 to H.264 transcoding
US8045618B2 (en) * 2005-08-05 2011-10-25 Lsi Corporation Method and apparatus for MPEG-2 to VC-1 video transcoding
US8155194B2 (en) * 2005-08-05 2012-04-10 Lsi Corporation Method and apparatus for MPEG-2 to H.264 video transcoding
US7881384B2 (en) 2005-08-05 2011-02-01 Lsi Corporation Method and apparatus for H.264 to MPEG-2 video transcoding
US8208540B2 (en) * 2005-08-05 2012-06-26 Lsi Corporation Video bitstream transcoding method and apparatus
US7903739B2 (en) * 2005-08-05 2011-03-08 Lsi Corporation Method and apparatus for VC-1 to MPEG-2 video transcoding
US7953147B1 (en) * 2006-01-18 2011-05-31 Maxim Integrated Products, Inc. Iteration based method and/or apparatus for offline high quality encoding of multimedia content
JP2009526436A (en) * 2006-02-06 2009-07-16 トムソン ライセンシング Method and apparatus for reusing motion information available as a predictor of motion prediction for video coding
KR100761846B1 (en) * 2006-05-18 2007-09-28 삼성전자주식회사 Apparatus and method for detecting existence of a motion in a successive image
JP4221676B2 (en) * 2006-09-05 2009-02-12 ソニー株式会社 Information processing apparatus, information processing method, recording medium, and program
KR20080035891A (en) * 2006-10-20 2008-04-24 포스데이타 주식회사 Image playback apparatus for providing smart search of motion and method of the same
US8804829B2 (en) * 2006-12-20 2014-08-12 Microsoft Corporation Offline motion description for video generation
EP1978743B1 (en) * 2007-04-02 2020-07-01 Vestel Elektronik Sanayi ve Ticaret A.S. A method and apparatus for transcoding a video signal
US8189676B2 (en) * 2007-04-05 2012-05-29 Hong Kong University Of Science & Technology Advance macro-block entropy coding for advanced video standards
JP4450021B2 (en) * 2007-07-05 2010-04-14 ソニー株式会社 Recording / reproducing apparatus, recording apparatus, reproducing apparatus, recording method, reproducing method, and computer program
US8184715B1 (en) * 2007-08-09 2012-05-22 Elemental Technologies, Inc. Method for efficiently executing video encoding operations on stream processor architectures
JP5018332B2 (en) * 2007-08-17 2012-09-05 ソニー株式会社 Image processing apparatus, imaging apparatus, image processing method, and program
US8098732B2 (en) * 2007-10-10 2012-01-17 Sony Corporation System for and method of transcoding video sequences from a first format to a second format
US8121197B2 (en) 2007-11-13 2012-02-21 Elemental Technologies, Inc. Video encoding and decoding using parallel processors
JP5256803B2 (en) * 2008-03-19 2013-08-07 株式会社メガチップス Transcoder
JP2009272921A (en) * 2008-05-08 2009-11-19 Panasonic Corp Moving image recording apparatus, moving image reproducing apparatus, moving image recording method, moving image reproducing method, and semiconductor integrated circuit
JP5250824B2 (en) * 2008-05-30 2013-07-31 株式会社メガチップス Transcoder
AU2009258316A1 (en) * 2008-06-11 2009-12-17 National University Of Singapore CMOS amplifier with integrated tunable band-pass function
US8249144B2 (en) * 2008-07-08 2012-08-21 Imagine Communications Ltd. Distributed transcoding
US9083976B2 (en) 2008-09-05 2015-07-14 Freescale Semiconductor, Inc. Processing a video stream in real time based on binary information of the video stream
US8767838B1 (en) * 2008-09-05 2014-07-01 Zenverge, Inc. Cascading multiple video transcoders in a video processing system
US8798150B2 (en) 2008-12-05 2014-08-05 Motorola Mobility Llc Bi-directional video compression for real-time video streams during transport in a packet switched network
US8830339B2 (en) * 2009-04-15 2014-09-09 Qualcomm Incorporated Auto-triggered fast frame rate digital video recording
US20100278231A1 (en) * 2009-05-04 2010-11-04 Imagine Communications Ltd. Post-decoder filtering
KR101045191B1 (en) * 2009-06-09 2011-06-30 (주)제너시스템즈 Improved image transcoder and transcoding method
US8583898B2 (en) * 2009-06-12 2013-11-12 Cray Inc. System and method for managing processor-in-memory (PIM) operations
US8458685B2 (en) * 2009-06-12 2013-06-04 Cray Inc. Vector atomic memory operation vector update system and method
JP5336945B2 (en) * 2009-06-29 2013-11-06 ルネサスエレクトロニクス株式会社 Image processing device
EP2475174A4 (en) * 2009-09-03 2016-04-27 Nec Corp Video encoding device, video encoding method and video encoding program
EP2355510A1 (en) * 2009-12-21 2011-08-10 Alcatel Lucent Method and arrangement for video coding
US8340188B2 (en) * 2010-01-08 2012-12-25 Research In Motion Limited Method and device for motion vector estimation in video transcoding using union of search areas
US8559519B2 (en) 2010-01-08 2013-10-15 Blackberry Limited Method and device for video encoding using predicted residuals
US8315310B2 (en) 2010-01-08 2012-11-20 Research In Motion Limited Method and device for motion vector prediction in video transcoding using full resolution residuals
US20110170608A1 (en) * 2010-01-08 2011-07-14 Xun Shi Method and device for video transcoding using quad-tree based mode selection
US8358698B2 (en) * 2010-01-08 2013-01-22 Research In Motion Limited Method and device for motion vector estimation in video transcoding using full-resolution residuals
CN103004201B (en) * 2010-07-15 2016-04-13 三菱电机株式会社 Dynamic image encoding device, moving image decoding apparatus, dynamic image encoding method and dynamic image decoding method
TWI759223B (en) 2010-12-03 2022-03-21 美商杜比實驗室特許公司 Audio decoding device, audio decoding method, and audio encoding method
KR101803970B1 (en) * 2011-03-16 2017-12-28 삼성전자주식회사 Method and apparatus for composing content
WO2012158705A1 (en) * 2011-05-19 2012-11-22 Dolby Laboratories Licensing Corporation Adaptive audio processing based on forensic detection of media processing history
CN107483930B (en) 2011-10-17 2020-03-06 株式会社Kt Method for decoding video signal using decoding apparatus
JP5760950B2 (en) * 2011-10-28 2015-08-12 富士通株式会社 Moving picture re-encoding device, moving picture re-encoding method, and moving picture re-encoding computer program
CN102799572B (en) * 2012-07-27 2015-09-09 深圳万兴信息科技股份有限公司 A kind of text code mode and text code device
US9992490B2 (en) * 2012-09-26 2018-06-05 Sony Corporation Video parameter set (VPS) syntax re-ordering for easy access of extension parameters
US20140177729A1 (en) * 2012-12-21 2014-06-26 Ati Technologies Ulc Method and apparatus for transcoding video data
ITMI20131710A1 (en) 2013-10-15 2015-04-16 Sky Italia S R L "ENCODING CLOUD SYSTEM"
KR102071580B1 (en) * 2014-11-03 2020-01-30 삼성전자주식회사 Method and apparatus for re-encoding an image
US20160148279A1 (en) 2014-11-26 2016-05-26 Adobe Systems Incorporated Content Creation, Deployment Collaboration, and Badges
KR102437698B1 (en) * 2015-08-11 2022-08-30 삼성전자주식회사 Apparatus and method for encoding image thereof
US10200694B2 (en) * 2015-09-17 2019-02-05 Mediatek Inc. Method and apparatus for response of feedback information during video call
US10408289B2 (en) * 2016-08-12 2019-09-10 Akebono Brake Industry Co., Ltd. Parking brake torque locking mechanism
US11575922B2 (en) * 2017-12-06 2023-02-07 V-Nova International Limited Methods and apparatuses for hierarchically encoding and decoding a bytestream
CN110198474B (en) * 2018-02-27 2022-03-15 中兴通讯股份有限公司 Code stream processing method and device
CN110620635A (en) * 2018-06-20 2019-12-27 深圳市华星光电技术有限公司 Decoding method, apparatus and readable storage medium
CN113037733A (en) * 2021-03-01 2021-06-25 安徽商信政通信息技术股份有限公司 Non-physical contact nondestructive transmission method and system for aerospace secret-related data
CN113038277B (en) * 2021-03-15 2023-06-23 北京汇钧科技有限公司 Video processing method and device

Family Cites Families (97)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443769A2 (en) 1978-12-08 1980-07-04 Telediffusion Fse COMPRESSION AND EXPANSION (QUANTIFICATION) OF DIFFERENTIALLY CODED TELEVISION DIGITAL SIGNALS
DE3613343A1 (en) * 1986-04-19 1987-10-22 Philips Patentverwaltung HYBRID CODERS
US4825448A (en) 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system
US5187755A (en) 1988-06-30 1993-02-16 Dainippon Screen Mfg. Co., Ltd. Method of and apparatus for compressing image data
WO1991003901A1 (en) 1989-09-04 1991-03-21 Fujitsu Limited Time-division multiplex data relay exchange system
EP0492528B1 (en) 1990-12-27 1996-10-09 Kabushiki Kaisha Toshiba Recording/reproducing apparatus
US5260783A (en) 1991-02-21 1993-11-09 Gte Laboratories Incorporated Layered DCT video coder for packet switched ATM networks
US5148272A (en) * 1991-02-27 1992-09-15 Rca Thomson Licensing Corporation Apparatus for recombining prioritized video data
US5212549A (en) 1991-04-29 1993-05-18 Rca Thomson Licensing Corporation Error concealment apparatus for a compressed video signal processing system
US5227878A (en) 1991-11-15 1993-07-13 At&T Bell Laboratories Adaptive coding and decoding of frames and fields of video
US5831668A (en) 1992-02-25 1998-11-03 Imatran Voima Oy Assembly for combustion chamber monitoring camera
US5327520A (en) 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
JP3196906B2 (en) 1992-08-21 2001-08-06 富士ゼロックス株式会社 Image signal encoding device
JP3358835B2 (en) * 1992-12-14 2002-12-24 ソニー株式会社 Image coding method and apparatus
JP3163830B2 (en) * 1993-03-29 2001-05-08 ソニー株式会社 Image signal transmission method and apparatus
TW301098B (en) * 1993-03-31 1997-03-21 Sony Co Ltd
JPH06292019A (en) * 1993-04-02 1994-10-18 Fujitsu Ltd Picture data compressor and picture code compressor
JP3085024B2 (en) * 1993-06-01 2000-09-04 松下電器産業株式会社 Image recompressor and image recording device
JPH0795584A (en) 1993-07-30 1995-04-07 Matsushita Electric Ind Co Ltd Picture coder
NL9301358A (en) 1993-08-04 1995-03-01 Nederland Ptt Transcoder.
JP3081425B2 (en) 1993-09-29 2000-08-28 シャープ株式会社 Video coding device
US5452006A (en) 1993-10-25 1995-09-19 Lsi Logic Corporation Two-part synchronization scheme for digital video decoders
KR970003789B1 (en) 1993-11-09 1997-03-21 한국전기통신공사 Bit allocation method for controlling bit-rate of video encoder
EP0656729B1 (en) * 1993-12-01 2000-02-09 Matsushita Electric Industrial Co., Ltd. Method and apparatus for editing or mixing compressed pictures
US6870886B2 (en) * 1993-12-15 2005-03-22 Koninklijke Philips Electronics N.V. Method and apparatus for transcoding a digitally compressed high definition television bitstream to a standard definition television bitstream
US5537440A (en) 1994-01-07 1996-07-16 Motorola, Inc. Efficient transcoding device and method
US5563593A (en) * 1994-03-18 1996-10-08 Lucent Technologies Inc. Video coding with optimized low complexity variable length codes
US5500678A (en) 1994-03-18 1996-03-19 At&T Corp. Optimized scanning of transform coefficients in video coding
US5754235A (en) * 1994-03-25 1998-05-19 Sanyo Electric Co., Ltd. Bit-rate conversion circuit for a compressed motion video bitstream
US5715009A (en) 1994-03-29 1998-02-03 Sony Corporation Picture signal transmitting method and apparatus
US5541852A (en) * 1994-04-14 1996-07-30 Motorola, Inc. Device, method and system for variable bit-rate packet video communications
US5534937A (en) 1994-04-14 1996-07-09 Motorola, Inc. Minimum-delay jitter smoothing device and method for packet video communications
JPH07288804A (en) 1994-04-18 1995-10-31 Kokusai Denshin Denwa Co Ltd <Kdd> Re-coding device for picture signal
US5940130A (en) 1994-04-21 1999-08-17 British Telecommunications Public Limited Company Video transcoder with by-pass transfer of extracted motion compensation data
DE4416967A1 (en) * 1994-05-13 1995-11-16 Thomson Brandt Gmbh Method and device for transcoding bit streams with video data
DE69535553T2 (en) * 1994-06-17 2007-12-06 Snell & Wilcox Ltd., Havant VIDEO COMPRESSION
GB9413001D0 (en) * 1994-06-28 1994-08-17 Ntl Methods for the synchronisation of successive digital video compression/decompression systems
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
JPH0865663A (en) 1994-08-19 1996-03-08 Canon Inc Digital image information processor
JP3629728B2 (en) * 1994-08-31 2005-03-16 ソニー株式会社 Moving picture signal encoding method, moving picture signal encoding apparatus, and moving picture signal recording medium
JP3623989B2 (en) 1994-09-22 2005-02-23 キヤノン株式会社 Image conversion method and apparatus
JP3293369B2 (en) 1994-10-12 2002-06-17 ケイディーディーアイ株式会社 Image information re-encoding method and apparatus
JP3058028B2 (en) 1994-10-31 2000-07-04 三菱電機株式会社 Image encoded data re-encoding device
JP3588153B2 (en) * 1994-10-31 2004-11-10 三洋電機株式会社 Data editing method and editing device
US5889561A (en) * 1994-11-04 1999-03-30 Rca Thomson Licensing Corporation Method and apparatus for scaling a compressed video bitstream
GB9501736D0 (en) * 1995-01-30 1995-03-22 Snell & Wilcox Ltd Video signal processing
DE69607696T2 (en) * 1995-02-15 2000-10-19 Koninkl Philips Electronics Nv DEVICE AND METHOD FOR TRANSCODING VIDEO SIGNALS
US5812197A (en) * 1995-05-08 1998-09-22 Thomson Consumer Electronics, Inc. System using data correlation for predictive encoding of video image data subject to luminance gradients and motion
US5774206A (en) 1995-05-10 1998-06-30 Cagent Technologies, Inc. Process for controlling an MPEG decoder
GB2301970B (en) * 1995-06-06 2000-03-01 Sony Uk Ltd Motion compensated video processing
DE69608231T2 (en) * 1995-07-19 2000-11-30 Koninkl Philips Electronics Nv METHOD AND DEVICE FOR DECODING DIGITAL VIDEO BIT DATA AND RECEIVER DEVICE THEREFOR
EP0779744A3 (en) * 1995-12-06 1997-08-20 Thomson Multimedia Sa Method and apparatus for decoding digital video signals
JPH09182083A (en) * 1995-12-27 1997-07-11 Matsushita Electric Ind Co Ltd Video image encoding method and decoding method and device therefor
JPH09307861A (en) * 1996-05-17 1997-11-28 Sony Corp Signal processing method and signal process
ATE278297T1 (en) 1996-07-15 2004-10-15 Snell & Wilcox Ltd VIDEO SIGNAL COMPRESSION
US6856650B1 (en) * 1996-07-16 2005-02-15 Kokusai Denshin Denwa Co., Ltd. Method and apparatus for second or later generation coding of video signal
JPH1032830A (en) 1996-07-16 1998-02-03 Kokusai Denshin Denwa Co Ltd <Kdd> Re-encoding method and device for image information
JP3956323B2 (en) 1996-07-16 2007-08-08 Ｋｄｄｉ株式会社 Image information re-encoding method and apparatus
JPH1051766A (en) * 1996-08-05 1998-02-20 Mitsubishi Electric Corp Image coding data converter
US5936616A (en) * 1996-08-07 1999-08-10 Microsoft Corporation Method and system for accessing and displaying a compressed display image in a computer system
JP3623056B2 (en) * 1996-09-10 2005-02-23 ソニー株式会社 Video compression device
GB2318472B (en) * 1996-10-09 2000-11-15 Sony Uk Ltd Processing encoded signals
GB2318246B (en) 1996-10-09 2000-11-15 Sony Uk Ltd Processing digitally encoded signals
KR100599017B1 (en) * 1996-12-12 2006-12-13 소니 가부시끼 가이샤 Image data compression device and method
US5870146A (en) * 1997-01-21 1999-02-09 Multilink, Incorporated Device and method for digital video transcoding
BR9809251A (en) 1997-05-09 2000-06-27 Neomedia Technologies Inc Soci Method for inserting links to a network resource in a transmission medium
JP3022405B2 (en) * 1997-06-03 2000-03-21 日本電気株式会社 Image memory controller
US5990958A (en) * 1997-06-17 1999-11-23 National Semiconductor Corporation Apparatus and method for MPEG video decompression
US5907374A (en) 1997-06-30 1999-05-25 Hewlett-Packard Company Method and apparatus for processing a compressed input bitstream representing an information signal
US6012091A (en) * 1997-06-30 2000-01-04 At&T Corporation Video telecommunications server and method of providing video fast forward and reverse
US6043845A (en) * 1997-08-29 2000-03-28 Logitech Video capture and compression system and method for composite video
JP3338774B2 (en) * 1997-12-22 2002-10-28 エヌイーシーソフト株式会社 MPEG encoding apparatus, MPEG PS multiplexing method, and recording medium recording PS multiplexing program
US6100940A (en) 1998-01-21 2000-08-08 Sarnoff Corporation Apparatus and method for using side information to improve a coding system
GB2333656B (en) 1998-01-22 2002-08-14 British Broadcasting Corp Compressed signals
US6574274B2 (en) * 1998-02-27 2003-06-03 Sony Corporation Picture signal processing system, decoder, picture signal processing method, and decoding method
JP3724204B2 (en) 1998-03-10 2005-12-07 ソニー株式会社 Encoding apparatus and method, and recording medium
CA2265089C (en) 1998-03-10 2007-07-10 Sony Corporation Transcoding system using encoding history information
EP0993644A2 (en) * 1998-04-30 2000-04-19 Koninklijke Philips Electronics N.V. Transcoding of a data stream
US6665687B1 (en) * 1998-06-26 2003-12-16 Alexander James Burke Composite user interface and search system for internet and multimedia applications
US6167084A (en) * 1998-08-27 2000-12-26 Motorola, Inc. Dynamic bit allocation for statistical multiplexing of compressed and uncompressed digital video signals
JP2000209425A (en) * 1998-11-09 2000-07-28 Canon Inc Device and method for processing image and storage medium
CN1241416C (en) * 1999-02-09 2006-02-08 索尼公司 Coding system and its method, coding device and its method decoding device and its method, recording device and its method, and reproducing device and its method
US6437787B1 (en) * 1999-03-30 2002-08-20 Sony Corporation Display master control
JP4295861B2 (en) 1999-05-31 2009-07-15 株式会社東芝 Transcoder device
KR100357093B1 (en) * 1999-06-02 2002-10-18 엘지전자 주식회사 apparatus and method for concealing error in moving picture decompression system
GB9920929D0 (en) * 1999-09-03 1999-11-10 Sony Uk Ltd Video signal processor
JP3694888B2 (en) 1999-12-03 2005-09-14 ソニー株式会社 Decoding device and method, encoding device and method, information processing device and method, and recording medium
US7151800B1 (en) * 2000-01-15 2006-12-19 Sony Corporation Implementation of a DV video decoder with a VLIW processor and a variable length decoding unit
US6369722B1 (en) * 2000-03-17 2002-04-09 Matra Nortel Communications Coding, decoding and transcoding methods
FR2809573B1 (en) * 2000-05-26 2002-08-16 Thomson Broadcast Systems METHOD FOR ENCODING A VIDEO IMAGE STREAM
US20020016755A1 (en) * 2000-07-17 2002-02-07 Pearce Kenneth F. Method of establishing a commercial relationship between a service provider and a potential customer of the service, including a reasoning criterion, and method of face-to-face advertising in a public place
JP3632591B2 (en) * 2000-11-13 2005-03-23 日本電気株式会社 Image processing apparatus, method, and computer-readable recording medium
US8782254B2 (en) * 2001-06-28 2014-07-15 Oracle America, Inc. Differentiated quality of service context assignment and propagation
EP1292153B1 (en) * 2001-08-29 2015-08-19 Canon Kabushiki Kaisha Image processing method and apparatus, computer program, and storage medium
JPWO2003054848A1 (en) * 2001-12-21 2005-04-28 松下電器産業株式会社 Computer display system, computer device and display device
JP2005304065A (en) 2005-05-16 2005-10-27 Sony Corp Decoding device and method, coding device and method, information processing device and method, and recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116800976A (en) * 2023-07-17 2023-09-22 武汉星巡智能科技有限公司 Audio and video compression and restoration method, device and equipment for infant with sleep
CN116800976B (en) * 2023-07-17 2024-03-12 武汉星巡智能科技有限公司 Audio and video compression and restoration method, device and equipment for infant with sleep

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