DE69826878D1 - Wiederkodierung von dekodierten signalen - Google Patents

Wiederkodierung von dekodierten signalen

Info

Publication number
DE69826878D1
DE69826878D1 DE69826878T DE69826878T DE69826878D1 DE 69826878 D1 DE69826878 D1 DE 69826878D1 DE 69826878 T DE69826878 T DE 69826878T DE 69826878 T DE69826878 T DE 69826878T DE 69826878 D1 DE69826878 D1 DE 69826878D1
Authority
DE
Germany
Prior art keywords
recoding
decoded signals
decoded
signals
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
DE69826878T
Other languages
English (en)
Other versions
DE69826878T2 (de
Inventor
Andrew Fletcher
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.)
British Broadcasting Corp
Original Assignee
British Broadcasting Corp
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 British Broadcasting Corp filed Critical British Broadcasting Corp
Publication of DE69826878D1 publication Critical patent/DE69826878D1/de
Application granted granted Critical
Publication of DE69826878T2 publication Critical patent/DE69826878T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/60—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
    • 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
    • H04N19/124—Quantisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE69826878T 1997-07-18 1998-07-20 Wiederkodierung von dekodierten signalen Expired - Lifetime DE69826878T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9715234 1997-07-18
GB9715234A GB2327577B (en) 1997-07-18 1997-07-18 Re-encoding decoded signals
PCT/GB1998/002164 WO1999004572A1 (en) 1997-07-18 1998-07-20 Re-encoding decoded signals

Publications (2)

Publication Number Publication Date
DE69826878D1 true DE69826878D1 (de) 2004-11-11
DE69826878T2 DE69826878T2 (de) 2005-10-13

Family

ID=10816118

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69826878T Expired - Lifetime DE69826878T2 (de) 1997-07-18 1998-07-20 Wiederkodierung von dekodierten signalen

Country Status (8)

Country Link
US (1) US6560283B1 (de)
EP (1) EP1016285B1 (de)
JP (1) JP2001510965A (de)
AU (1) AU761415B2 (de)
CA (1) CA2295753C (de)
DE (1) DE69826878T2 (de)
GB (1) GB2327577B (de)
WO (1) WO1999004572A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2340351B (en) * 1998-07-29 2004-06-09 British Broadcasting Corp Data transmission
GB2344728B (en) * 1998-09-23 2004-03-17 British Broadcasting Corp Audio compression
DE10000934C1 (de) 2000-01-12 2001-09-27 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Bestimmen eines Codierungs-Blockrasters eines decodierten Signals
DE10010849C1 (de) * 2000-03-06 2001-06-21 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Analysieren eines Analyse-Zeitsignals
US7190723B2 (en) * 2002-03-27 2007-03-13 Scientific-Atlanta, Inc. Digital stream transcoder with a hybrid-rate controller
FR2840495B1 (fr) 2002-05-29 2004-07-30 Canon Kk Procede et dispositif de selection d'une methode de transcodage parmi un ensemble de methodes de transcodage
TWI220753B (en) * 2003-01-20 2004-09-01 Mediatek Inc Method for determining quantization parameters
NO318973B1 (no) * 2003-07-01 2005-05-30 Tandberg Telecom As Fremgangsmate for stoyreduksjon
JP4325657B2 (ja) * 2006-10-02 2009-09-02 ソニー株式会社 光ディスク再生装置、信号処理方法、およびプログラム
CN113222097B (zh) * 2020-01-21 2024-09-17 上海商汤智能科技有限公司 数据处理方法和相关产品
WO2024012040A1 (en) * 2022-07-15 2024-01-18 Huawei Technologies Co., Ltd. Method for speech generation and related device

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1762313C3 (de) * 1967-05-27 1978-08-24 Fujitsu Ltd., Kawasaki, Kanagawa (Japan) Kodierer in Kaskadeschaltung
JPH01158825A (ja) 1987-12-16 1989-06-21 Fujitsu Ltd 適応型符号化制御方式
GB2251097B (en) * 1990-12-08 1995-05-10 Dowty Information Systems An adaptive data compression system
FR2674710B1 (fr) * 1991-03-27 1994-11-04 France Telecom Procede et systeme de traitement des preechos d'un signal audio-numerique code par transformee frequentielle.
ATE162918T1 (de) * 1991-04-18 1998-02-15 Ampex Systems Corp Verfahren und anordnung zur bestimmung eines quantisierungsfaktors für prozesse mit datenkomprimierung und -dekomprimierung
JP2991833B2 (ja) * 1991-10-11 1999-12-20 松下電器産業株式会社 インターレス走査ディジタルビデオ信号の符号化装置及びその方法
US5227878A (en) * 1991-11-15 1993-07-13 At&T Bell Laboratories Adaptive coding and decoding of frames and fields of video
US5237397A (en) * 1991-12-24 1993-08-17 Apple Computer, Inc. Color video data processing
US5717816A (en) * 1993-01-13 1998-02-10 Hitachi America Ltd. Method and apparatus for the selection of data for use in VTR trick playback operation in a system using intra-coded video frames
US5376968A (en) * 1993-03-11 1994-12-27 General Instrument Corporation Adaptive compression of digital video data using different modes such as PCM and DPCM
JP3163830B2 (ja) 1993-03-29 2001-05-08 ソニー株式会社 画像信号伝送方法及び装置
US5533052A (en) * 1993-10-15 1996-07-02 Comsat Corporation Adaptive predictive coding with transform domain quantization based on block size adaptation, backward adaptive power gain control, split bit-allocation and zero input response compensation
JP3277679B2 (ja) * 1994-04-15 2002-04-22 ソニー株式会社 高能率符号化方法と高能率符号化装置及び高能率復号化方法と高能率復号化装置
TW374283B (en) * 1994-05-25 1999-11-11 Sony Corp A multiple coding device
JPH088842A (ja) * 1994-06-15 1996-01-12 Philips Electron Nv データ圧縮伝送システム
JP3076201B2 (ja) * 1994-07-28 2000-08-14 日本電気株式会社 画像データ伸張方式
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
US5838874A (en) * 1995-05-08 1998-11-17 Kabushiki Kaisha Toshiba Audiovisual encoding system with a reduced number of audio encoders
US5929916A (en) * 1995-12-26 1999-07-27 Legall; Didier J. Variable bit rate encoding
JPH1051766A (ja) * 1996-08-05 1998-02-20 Mitsubishi Electric Corp 画像符号化データ変換装置
US6304676B1 (en) * 1996-10-03 2001-10-16 Mark A. Mathews Apparatus and method for successively refined competitive compression with redundant decompression

Also Published As

Publication number Publication date
AU761415B2 (en) 2003-06-05
GB2327577A (en) 1999-01-27
WO1999004572A1 (en) 1999-01-28
EP1016285A1 (de) 2000-07-05
JP2001510965A (ja) 2001-08-07
GB2327577B (en) 2002-09-11
AU8452398A (en) 1999-02-10
CA2295753A1 (en) 1999-01-28
CA2295753C (en) 2007-09-25
US6560283B1 (en) 2003-05-06
EP1016285B1 (de) 2004-10-06
DE69826878T2 (de) 2005-10-13
GB9715234D0 (en) 1997-09-24

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Legal Events

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