DE69512099T2 - Verfahren und Vorrichtung zur adaptiven Subband-Analyse und -Synthese - Google Patents

Verfahren und Vorrichtung zur adaptiven Subband-Analyse und -Synthese

Info

Publication number
DE69512099T2
DE69512099T2 DE69512099T DE69512099T DE69512099T2 DE 69512099 T2 DE69512099 T2 DE 69512099T2 DE 69512099 T DE69512099 T DE 69512099T DE 69512099 T DE69512099 T DE 69512099T DE 69512099 T2 DE69512099 T2 DE 69512099T2
Authority
DE
Germany
Prior art keywords
synthesis
subband analysis
adaptive subband
adaptive
analysis
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
DE69512099T
Other languages
English (en)
Other versions
DE69512099D1 (de
Inventor
Laurent Perdrieau
Michel Pecot
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.)
Technicolor SA
Original Assignee
Thomson Multimedia SA
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 Thomson Multimedia SA filed Critical Thomson Multimedia SA
Application granted granted Critical
Publication of DE69512099D1 publication Critical patent/DE69512099D1/de
Publication of DE69512099T2 publication Critical patent/DE69512099T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • H04N19/635—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by filter definition or implementation details
    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/1883—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit relating to sub-band structure, e.g. hierarchical level, directional tree, e.g. low-high [LH], high-low [HL], high-high [HH]
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69512099T 1994-01-21 1995-01-13 Verfahren und Vorrichtung zur adaptiven Subband-Analyse und -Synthese Expired - Lifetime DE69512099T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9400633A FR2715527B1 (fr) 1994-01-21 1994-01-21 Procédé et dispositif d'analyse et de synthèse en sous bandes adaptatifs.

Publications (2)

Publication Number Publication Date
DE69512099D1 DE69512099D1 (de) 1999-10-21
DE69512099T2 true DE69512099T2 (de) 2000-03-02

Family

ID=9459253

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69512099T Expired - Lifetime DE69512099T2 (de) 1994-01-21 1995-01-13 Verfahren und Vorrichtung zur adaptiven Subband-Analyse und -Synthese

Country Status (4)

Country Link
US (1) US5844610A (de)
EP (1) EP0664652B1 (de)
DE (1) DE69512099T2 (de)
FR (1) FR2715527B1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6757326B1 (en) * 1998-12-28 2004-06-29 Motorola, Inc. Method and apparatus for implementing wavelet filters in a digital system
FR2790172A1 (fr) * 1999-02-24 2000-08-25 Canon Kk Dispositif et procede de transformation de signal numerique
FR2790171A1 (fr) * 1999-02-24 2000-08-25 Canon Kk Dispositif et procede de transformation de signal numerique
FR2790173A1 (fr) * 1999-02-24 2000-08-25 Canon Kk Dispositif et procede de transformation de signal numerique
FR2790168A1 (fr) * 1999-02-24 2000-08-25 Canon Kk Dispositif et procede de transformation de signal numerique
EP1032216A1 (de) 1999-02-24 2000-08-30 Canon Kabushiki Kaisha Vorrichtung und Verfahren zur Transformation eines digitalen Signals
FR2796506B1 (fr) * 1999-07-13 2001-10-05 Canon Kk Procede et dispositif de filtrage de signal numerique
CN100401778C (zh) * 2002-09-17 2008-07-09 弗拉迪米尔·切佩尔科维奇 具有高压缩率和最小必需资源的快速codec
SE0301273D0 (sv) * 2003-04-30 2003-04-30 Coding Technologies Sweden Ab Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
FR2887711A1 (fr) * 2005-06-23 2006-12-29 Thomson Licensing Sa Procede de codage et decodage hierarchique
US8958510B1 (en) * 2010-06-10 2015-02-17 Fredric J. Harris Selectable bandwidth filter
US20120189064A1 (en) * 2011-01-14 2012-07-26 Ebrisk Video Inc. Adaptive loop filtering using multiple filter shapes

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122873A (en) * 1987-10-05 1992-06-16 Intel Corporation Method and apparatus for selectively encoding and decoding a digital motion video signal at multiple resolution levels
FR2643531B1 (fr) * 1989-02-21 1996-04-26 Thomson Csf Procede et dispositif de compression de l'information destine au decodage compatible d'une famille de signaux de television de resolutions croissantes
US4969040A (en) * 1989-10-26 1990-11-06 Bell Communications Research, Inc. Apparatus and method for differential sub-band coding of video signals
FR2654887B1 (fr) * 1989-11-20 1995-06-16 Thomson Csf Procede et dispositif de codage et de decodage compatibles d'images de television de resolutions differentes.
US5218435A (en) * 1991-02-20 1993-06-08 Massachusetts Institute Of Technology Digital advanced television systems
FR2677836B1 (fr) * 1991-06-11 1997-08-29 Thomson Csf Codeur-decodeur sous bandes de signaux de television a niveaux compatibilite differents.
FR2680924B1 (fr) * 1991-09-03 1997-06-06 France Telecom Procede de filtrage adapte d'un signal transforme en sous-bandes, et dispositif de filtrage correspondant.
GB2263373B (en) * 1992-01-09 1995-05-24 Sony Broadcast & Communication Data error concealment
US5469517A (en) * 1992-01-21 1995-11-21 Nec Corporation Motion compensation circuit
CA2088082C (en) * 1992-02-07 1999-01-19 John Hartung Dynamic bit allocation for three-dimensional subband video coding

Also Published As

Publication number Publication date
FR2715527B1 (fr) 1996-02-23
FR2715527A1 (fr) 1995-07-28
US5844610A (en) 1998-12-01
EP0664652A1 (de) 1995-07-26
EP0664652B1 (de) 1999-09-15
DE69512099D1 (de) 1999-10-21

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