DE69432142D1 - Verfahren und vorrichtung zur effizienten transkodierung - Google Patents

Verfahren und vorrichtung zur effizienten transkodierung

Info

Publication number
DE69432142D1
DE69432142D1 DE69432142T DE69432142T DE69432142D1 DE 69432142 D1 DE69432142 D1 DE 69432142D1 DE 69432142 T DE69432142 T DE 69432142T DE 69432142 T DE69432142 T DE 69432142T DE 69432142 D1 DE69432142 D1 DE 69432142D1
Authority
DE
Germany
Prior art keywords
efficient transcoding
transcoding
efficient
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 - Fee Related
Application number
DE69432142T
Other languages
English (en)
Other versions
DE69432142T2 (de
Inventor
Vedat Eyuboglu
Mei Yong
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of DE69432142D1 publication Critical patent/DE69432142D1/de
Application granted granted Critical
Publication of DE69432142T2 publication Critical patent/DE69432142T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/066—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM]
    • H04B14/068—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM] with adaptive feedback
DE69432142T 1994-01-07 1994-12-01 Verfahren und vorrichtung zur effizienten transkodierung Expired - Fee Related DE69432142T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/179,020 US5537440A (en) 1994-01-07 1994-01-07 Efficient transcoding device and method
PCT/US1994/013840 WO1995019072A1 (en) 1994-01-07 1994-12-01 Efficient transcoding device and method

Publications (2)

Publication Number Publication Date
DE69432142D1 true DE69432142D1 (de) 2003-03-27
DE69432142T2 DE69432142T2 (de) 2003-07-24

Family

ID=22654894

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69432142T Expired - Fee Related DE69432142T2 (de) 1994-01-07 1994-12-01 Verfahren und vorrichtung zur effizienten transkodierung

Country Status (6)

Country Link
US (1) US5537440A (de)
EP (1) EP0691054B1 (de)
JP (1) JPH08507669A (de)
CA (1) CA2154885C (de)
DE (1) DE69432142T2 (de)
WO (1) WO1995019072A1 (de)

Families Citing this family (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5835532A (en) * 1994-03-21 1998-11-10 Rca Thomson Licensing Corporation Blind equalizer for a vestigial sideband signal
US5781237A (en) * 1994-03-25 1998-07-14 Matsushita Electric Industrial Co., Ltd. Video coding apparatus and video coding method
US5715009A (en) 1994-03-29 1998-02-03 Sony Corporation Picture signal transmitting method and apparatus
JP3013698B2 (ja) * 1994-04-20 2000-02-28 松下電器産業株式会社 ベクトル量子化符号化装置と復号化装置
US5940130A (en) * 1994-04-21 1999-08-17 British Telecommunications Public Limited Company Video transcoder with by-pass transfer of extracted motion compensation data
SG43051A1 (en) * 1994-04-21 1997-10-17 British Telecomm A transcoder
DE4416967A1 (de) * 1994-05-13 1995-11-16 Thomson Brandt Gmbh Verfahren und Vorrichtung zur Transcodierung von Bitströmen mit Videodaten
US5828421A (en) * 1994-10-11 1998-10-27 Hitachi America, Ltd. Implementation efficient digital picture-in-picture decoding methods and apparatus
US5825970A (en) * 1994-12-20 1998-10-20 Lg Electronics Inc. Quantization number selecting apparatus for DVCR and method therefor
EP0755610B1 (de) * 1995-02-15 2000-04-12 Koninklijke Philips Electronics N.V. Vorrichtung und verfahren zur transkodierung von videosignalen
JP3418485B2 (ja) * 1995-09-14 2003-06-23 シャープ株式会社 画像データ蓄積装置
JP3788823B2 (ja) * 1995-10-27 2006-06-21 株式会社東芝 動画像符号化装置および動画像復号化装置
JPH1051766A (ja) 1996-08-05 1998-02-20 Mitsubishi Electric Corp 画像符号化データ変換装置
US6038256A (en) * 1996-12-31 2000-03-14 C-Cube Microsystems Inc. Statistical multiplexed video encoding using pre-encoding a priori statistics and a priori and a posteriori statistics
US5870146A (en) * 1997-01-21 1999-02-09 Multilink, Incorporated Device and method for digital video transcoding
SE9703849L (sv) * 1997-03-14 1998-09-15 Ericsson Telefon Ab L M Nedskalning av bilder
CN1110963C (zh) * 1997-03-26 2003-06-04 松下电器产业株式会社 图象解码装置
WO1999005870A2 (en) * 1997-07-22 1999-02-04 Koninklijke Philips Electronics N.V. Method of switching between video sequences and corresponding device
US6507672B1 (en) * 1997-09-10 2003-01-14 Lsi Logic Corporation Video encoder for digital video displays
US6731811B1 (en) * 1997-12-19 2004-05-04 Voicecraft, Inc. Scalable predictive coding method and apparatus
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
US6243495B1 (en) * 1998-02-13 2001-06-05 Grass Valley (Us) Inc. Method a group of picture structure in MPEG video
US6058143A (en) * 1998-02-20 2000-05-02 Thomson Licensing S.A. Motion vector extrapolation for transcoding video sequences
CA2265089C (en) * 1998-03-10 2007-07-10 Sony Corporation Transcoding system using encoding history information
CN1179574C (zh) * 1998-03-31 2004-12-08 皇家菲利浦电子有限公司 在编码数据流中修改数据的方法和设备
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
US6477706B1 (en) 1998-05-01 2002-11-05 Cogent Technology, Inc. Cable television system using transcoding method
KR100304103B1 (ko) * 1998-05-29 2001-09-24 이계철 비트율이급변되는재양자화계단크기선택방법및그를이용한비트율제어방법
SE9802286L (sv) 1998-06-26 1999-12-27 Ericsson Telefon Ab L M Effektiv nedskalning av DCT-komprimerade bilder
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
JP2000059790A (ja) * 1998-08-05 2000-02-25 Victor Co Of Japan Ltd 動画像符号列変換装置及びその方法
US6310915B1 (en) * 1998-11-20 2001-10-30 Harmonic Inc. Video transcoder with bitstream look ahead for rate control and statistical multiplexing
KR100312421B1 (ko) * 1998-11-25 2001-12-12 오길록 영상시스템에서의압축동영상변환장치및그방법
US6618442B1 (en) * 1998-12-29 2003-09-09 Intel Corporation Method and apparatus for transcoding digital video signals
ES2569491T3 (es) 1999-02-09 2016-05-11 Sony Corporation Sistema de codificación y método asociado
EP1032212A3 (de) * 1999-02-23 2004-04-28 Matsushita Electric Industrial Co., Ltd. Transkodierer, Verfahren zur Transkodierung, und Aufzeichnungsträger
CN1204751C (zh) * 1999-04-13 2005-06-01 松下电器产业株式会社 编码数据变换方法、再编码方法、再编码系统以及数据记录媒体
US6549147B1 (en) * 1999-05-21 2003-04-15 Nippon Telegraph And Telephone Corporation Methods, apparatuses and recorded medium for reversible encoding and decoding
EP1125439A1 (de) 1999-07-20 2001-08-22 Koninklijke Philips Electronics N.V. Transkodierer ohne abweichung und entsprechendes verfahren
US6401132B1 (en) 1999-08-03 2002-06-04 International Business Machines Corporation Subchaining transcoders in a transcoding framework
US6441754B1 (en) * 1999-08-17 2002-08-27 General Instrument Corporation Apparatus and methods for transcoder-based adaptive quantization
KR100634660B1 (ko) * 1999-09-13 2006-10-16 마츠시타 덴끼 산교 가부시키가이샤 부호화장치 및 부호화방법
DE19946267C2 (de) * 1999-09-27 2002-09-26 Harman Becker Automotive Sys Digitales Transcodiersystem
JP2003520512A (ja) * 2000-01-14 2003-07-02 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 伝送符号化方法及び伝送符号化装置
CN1593062A (zh) * 2000-02-04 2005-03-09 皇家菲利浦电子有限公司 用于位速率变码应用的量化方法
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
KR20020064963A (ko) * 2000-10-24 2002-08-10 코닌클리케 필립스 일렉트로닉스 엔.브이. 임베딩된 필터들을 갖는 트랜스코딩 방법 및 트랜스코딩장치
US6650707B2 (en) 2001-03-02 2003-11-18 Industrial Technology Research Institute Transcoding apparatus and method
US8391482B2 (en) * 2001-05-04 2013-03-05 Hewlett-Packard Development Company, L.P. Signal format that facilitates easy scalability of data streams
US20030007784A1 (en) * 2001-06-20 2003-01-09 Loui Alexander C. System and method for authoring a multimedia enabled disc
US7236529B2 (en) * 2001-10-30 2007-06-26 Industrial Technology Research Institute Methods and systems for video transcoding in DCT domain with low complexity
DE10300048B4 (de) * 2002-01-05 2005-05-12 Samsung Electronics Co., Ltd., Suwon Verfahren und Vorrichtung zur Bildcodierung und -decodierung
US7236521B2 (en) * 2002-03-27 2007-06-26 Scientific-Atlanta, Inc. Digital stream transcoder
US7190723B2 (en) * 2002-03-27 2007-03-13 Scientific-Atlanta, Inc. Digital stream transcoder with a hybrid-rate controller
US7469012B2 (en) * 2002-05-14 2008-12-23 Broadcom Corporation System and method for transcoding entropy-coded bitstreams
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
TWI230547B (en) * 2004-02-04 2005-04-01 Ind Tech Res Inst Low-complexity spatial downscaling video transcoder and method thereof
US20050232497A1 (en) * 2004-04-15 2005-10-20 Microsoft Corporation High-fidelity transcoding
US7692683B2 (en) * 2004-10-15 2010-04-06 Lifesize Communications, Inc. Video conferencing system transcoder
US20060248210A1 (en) * 2005-05-02 2006-11-02 Lifesize Communications, Inc. Controlling video display mode in a video conferencing system
US8422546B2 (en) * 2005-05-25 2013-04-16 Microsoft Corporation Adaptive video encoding using a perceptual model
US7818632B2 (en) * 2005-06-30 2010-10-19 Motorola Mobility, Inc. Code-word list algorithm
US20070237237A1 (en) * 2006-04-07 2007-10-11 Microsoft Corporation Gradient slope detection for video compression
US8059721B2 (en) 2006-04-07 2011-11-15 Microsoft Corporation Estimating sample-domain distortion in the transform domain with rounding compensation
US8503536B2 (en) 2006-04-07 2013-08-06 Microsoft Corporation Quantization adjustments for DC shift artifacts
US7995649B2 (en) 2006-04-07 2011-08-09 Microsoft Corporation Quantization adjustment based on texture level
US8711925B2 (en) 2006-05-05 2014-04-29 Microsoft Corporation Flexible quantization
US20070286277A1 (en) * 2006-06-13 2007-12-13 Chen Xuemin Sherman Method and system for video compression using an iterative encoding algorithm
US8238424B2 (en) 2007-02-09 2012-08-07 Microsoft Corporation Complexity-based adaptive preprocessing for multiple-pass video compression
US20080240257A1 (en) * 2007-03-26 2008-10-02 Microsoft Corporation Using quantization bias that accounts for relations between transform bins and quantization bins
US8498335B2 (en) * 2007-03-26 2013-07-30 Microsoft Corporation Adaptive deadzone size adjustment in quantization
US8243797B2 (en) 2007-03-30 2012-08-14 Microsoft Corporation Regions of interest for quality adjustments
US8442337B2 (en) 2007-04-18 2013-05-14 Microsoft Corporation Encoding adjustments for animation content
US8331438B2 (en) * 2007-06-05 2012-12-11 Microsoft Corporation Adaptive selection of picture-level quantization parameters for predicted video pictures
US8319814B2 (en) * 2007-06-22 2012-11-27 Lifesize Communications, Inc. Video conferencing system which allows endpoints to perform continuous presence layout selection
US8139100B2 (en) * 2007-07-13 2012-03-20 Lifesize Communications, Inc. Virtual multiway scaler compensation
US8457958B2 (en) * 2007-11-09 2013-06-04 Microsoft Corporation Audio transcoder using encoder-generated side information to transcode to target bit-rate
US8150187B1 (en) * 2007-11-29 2012-04-03 Lsi Corporation Baseband signal quantizer estimation
US8189933B2 (en) 2008-03-31 2012-05-29 Microsoft Corporation Classifying and controlling encoding quality for textured, dark smooth and smooth video content
US8897359B2 (en) 2008-06-03 2014-11-25 Microsoft Corporation Adaptive quantization for enhancement layer video coding
US8326075B2 (en) 2008-09-11 2012-12-04 Google Inc. System and method for video encoding using adaptive loop filter
US8514265B2 (en) * 2008-10-02 2013-08-20 Lifesize Communications, Inc. Systems and methods for selecting videoconferencing endpoints for display in a composite video image
US20100110160A1 (en) * 2008-10-30 2010-05-06 Brandt Matthew K Videoconferencing Community with Live Images
US8396114B2 (en) * 2009-01-29 2013-03-12 Microsoft Corporation Multiple bit rate video encoding using variable bit rate and dynamic resolution for adaptive video streaming
US8311115B2 (en) * 2009-01-29 2012-11-13 Microsoft Corporation Video encoding using previously calculated motion information
US8643695B2 (en) * 2009-03-04 2014-02-04 Lifesize Communications, Inc. Videoconferencing endpoint extension
US8456510B2 (en) * 2009-03-04 2013-06-04 Lifesize Communications, Inc. Virtual distributed multipoint control unit
US8270473B2 (en) * 2009-06-12 2012-09-18 Microsoft Corporation Motion based dynamic resolution multiple bit rate video encoding
US8350891B2 (en) * 2009-11-16 2013-01-08 Lifesize Communications, Inc. Determining a videoconference layout based on numbers of participants
US8705616B2 (en) 2010-06-11 2014-04-22 Microsoft Corporation Parallel multiple bitrate video encoding to reduce latency and dependences between groups of pictures
US9591318B2 (en) 2011-09-16 2017-03-07 Microsoft Technology Licensing, Llc Multi-layer encoding and decoding
US11089343B2 (en) 2012-01-11 2021-08-10 Microsoft Technology Licensing, Llc Capability advertisement, configuration and control for video coding and decoding
US9635334B2 (en) * 2012-12-03 2017-04-25 Avago Technologies General Ip (Singapore) Pte. Ltd. Audio and video management for parallel transcoding

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8005950A (nl) * 1980-10-30 1982-05-17 Philips Nv Differentieel pulscode modulatie overdrachtstelsel.
JPH01238229A (ja) * 1988-03-17 1989-09-22 Sony Corp デイジタル信号処理装置
US4972260A (en) * 1988-08-22 1990-11-20 Matsushita Electric Industrial Co., Ltd. Apparatus for coding a moving-picture signal
JPH0828875B2 (ja) * 1989-08-21 1996-03-21 三菱電機株式会社 符号化装置および復号化装置
JPH0472909A (ja) * 1990-07-13 1992-03-06 Sony Corp オーディオ信号の量子化誤差低減装置
JP2753126B2 (ja) * 1990-09-20 1998-05-18 株式会社東芝 ディジタル・シグマデルタ変調器
GB9022326D0 (en) * 1990-10-15 1990-11-28 British Telecomm Signal coding
JPH05167998A (ja) * 1991-12-16 1993-07-02 Nippon Telegr & Teleph Corp <Ntt> 画像の符号化制御処理方法

Also Published As

Publication number Publication date
EP0691054A4 (de) 1999-04-14
EP0691054B1 (de) 2003-02-19
WO1995019072A1 (en) 1995-07-13
JPH08507669A (ja) 1996-08-13
CA2154885C (en) 1999-07-20
DE69432142T2 (de) 2003-07-24
CA2154885A1 (en) 1995-07-13
EP0691054A1 (de) 1996-01-10
US5537440A (en) 1996-07-16

Similar Documents

Publication Publication Date Title
DE69432142T2 (de) Verfahren und vorrichtung zur effizienten transkodierung
DE69521969D1 (de) Verfahren und Vorrichtung zur Lichtbogen unterstützten CVD
DE69822687D1 (de) Vorrichtung und Verfahren zur Zusammenfassung
DE69532916D1 (de) Verfahren und vorrichtung zur bilddarstellung
DE69529636D1 (de) Verfahren und Vorrichtung zur Bewegtbildkodierung
DE69528950T2 (de) Verfahren und Vorrichtung zur Netzwerkanalyse
DE69727895D1 (de) Verfahren und Vorrichtung zur Sprachkodierung
DE69532029D1 (de) Verfahren zur Kodierung und Vorrichtung dafür
DE69737666D1 (de) Verfahren und Vorrichtung zur Dokument-Verarbeitung
DE69601552T2 (de) Verfahren und vorrichtung zur bildverbesserung
DE69731937D1 (de) Verfahren und vorrichtung zur datencodierung
DE69519820D1 (de) Verfahren und Vorrichtung zur Sprachsynthese
DE59601862D1 (de) Verfahren und Vorrichtung zur Elektrolyse
ATE247513T1 (de) Vorrichtung und verfahren zur trennung
DE69837361D1 (de) Verfahren und Vorrichtung zur Bildkodierung
DE69834320D1 (de) Verfahren und Vorrichtung zur Folgeschätzung
DE69715071T2 (de) Verfahren und Vorrichtung zur Sprachverarbeitung
DE69522327T2 (de) Verfahren und vorrichtung zur richtungsbestimmung
DE59708284D1 (de) Vorrichtung und verfahren zur formgebung von oberflächen
DE69622420D1 (de) Verfahren und vorrichtung zur reduzierung unerwünschter rückkopplung
DE69818981D1 (de) Vorrichtung und verfahren zur kristallisation
DE69506449T2 (de) Verfahren und vorrichtung zur zwischenbildkodierung
DE69514965D1 (de) Verfahren und Vorrichtung zur Gradationsumsetzung
DE69425817D1 (de) Vorrichtung und Verfahren zur Luminiszenzanalyse
DE69519818D1 (de) Verfahren und Vorrichtung zur Sprachsynthese

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee