BR0300847A - Sistema e método para transformar e codificar progressivamente dados digitais - Google Patents

Sistema e método para transformar e codificar progressivamente dados digitais

Info

Publication number
BR0300847A
BR0300847A BR0300847-9A BR0300847A BR0300847A BR 0300847 A BR0300847 A BR 0300847A BR 0300847 A BR0300847 A BR 0300847A BR 0300847 A BR0300847 A BR 0300847A
Authority
BR
Brazil
Prior art keywords
transform
coefficients
resolution
color space
entropy encoder
Prior art date
Application number
BR0300847-9A
Other languages
English (en)
Inventor
Henrique S Malvar
Original Assignee
Microsoft 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 Microsoft Corp filed Critical Microsoft Corp
Publication of BR0300847A publication Critical patent/BR0300847A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor
    • H04N1/646—Transmitting or storing colour television type signals, e.g. PAL, Lab; Their conversion into additive or subtractive colour signals or vice versa therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • 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
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/93—Run-length coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Color Television Systems (AREA)
  • Image Processing (AREA)
  • Color Image Communication Systems (AREA)

Abstract

"SISTEMA E MéTODO PARA TRANSFORMAR E CODIFICAR PROGRESSIVAMENTE DADOS DIGITAIS". é provido um sistema e método que facilitam transformar e codificar progressivamente gravuras digitais. A presente invenção, via o emprego de uma transformada multi-resolucional superposta, fornece renderização progressiva, bem como mitigação de artefatos de distorção da imagem pelo efeito de bloco e artefatos de ruido tipo mosquito, comparado com muitos sistemas de compressão convencionais. A invenção inclui um mapeador do espaço de cor, uma transformada multi-resolucional superposta, um quantizador, um dispositivo de varredura e um codificador de entropia. A transformada multi-resolucional superposta dá saída nos coeficientes da transformada, por exemplo, os coeficientes da primeira transformada e os coeficientes da segunda transformada. Uma representação multi-resolucional pode ser obtida por meio dos coeficientes da segunda transformada da transformada multi-resolucional superposta. O mapeador do espaço de cor mapeia uma imagem de entrada em uma representação do espaço de cor da imagem de entrada. A representação do espaço de cor da imagem de entrada é então provida à transformada multi-resolucional superposta. O quantizador recebe os coeficientes da primeira transformada e/ou os coeficientes da segunda transformada e fornece uma saída de coeficientes quantizados para uso pelo dispositivo de varredura e/ou o codificador de entropia. O dispositivo de varredura digitaliza os coeficientes quantizados a fim de produzir um vetor unidimensional para uso pelo codificador de entropia. O codificador de entropia codifica os coeficientes quantizados recebidos do quantizador e/ou do dispositivo de varredura, resultando na compressão de dados.
BR0300847-9A 2002-03-27 2003-03-26 Sistema e método para transformar e codificar progressivamente dados digitais BR0300847A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/109,291 US7006699B2 (en) 2002-03-27 2002-03-27 System and method for progressively transforming and coding digital data

Publications (1)

Publication Number Publication Date
BR0300847A true BR0300847A (pt) 2004-08-17

Family

ID=27804407

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0300847-9A BR0300847A (pt) 2002-03-27 2003-03-26 Sistema e método para transformar e codificar progressivamente dados digitais

Country Status (12)

Country Link
US (6) US7006699B2 (pt)
EP (3) EP3169049B1 (pt)
JP (1) JP4444571B2 (pt)
KR (1) KR100882417B1 (pt)
CN (2) CN100463488C (pt)
AU (4) AU2003202423B2 (pt)
BR (1) BR0300847A (pt)
CA (3) CA2775622C (pt)
ES (2) ES2729926T3 (pt)
MX (1) MXPA03002646A (pt)
RU (1) RU2321063C2 (pt)
TW (1) TWI239489B (pt)

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EP1349394B8 (en) 2017-05-31
EP1349394A3 (en) 2008-01-30
AU2003202423A1 (en) 2003-10-23
US20050276472A1 (en) 2005-12-15
AU2008229881A1 (en) 2008-10-30
CA2775691A1 (en) 2003-09-27
CA2423165A1 (en) 2003-09-27
CA2775622A1 (en) 2003-09-27
AU2008229876A1 (en) 2008-10-30
AU2008229880B2 (en) 2010-06-24
AU2003202423B2 (en) 2008-07-17
HK1058987A1 (zh) 2004-06-11
EP3169049B1 (en) 2019-04-10
CA2775691C (en) 2013-07-02
US7155055B2 (en) 2006-12-26
US20030185439A1 (en) 2003-10-02
EP3169050A1 (en) 2017-05-17
CN100348049C (zh) 2007-11-07
AU2008229880A1 (en) 2008-11-06
US20050276494A1 (en) 2005-12-15
CA2775622C (en) 2014-05-27
MXPA03002646A (es) 2004-09-06
JP4444571B2 (ja) 2010-03-31
CN1447285A (zh) 2003-10-08
ES2729926T3 (es) 2019-11-07
US20060023958A1 (en) 2006-02-02
CN1917562A (zh) 2007-02-21
EP3169049A1 (en) 2017-05-17
CN100463488C (zh) 2009-02-18
EP1349394B1 (en) 2017-03-29
US20050281472A1 (en) 2005-12-22
KR20030077959A (ko) 2003-10-04
US7099516B2 (en) 2006-08-29
EP3169050B1 (en) 2019-04-10
TW200305830A (en) 2003-11-01
US7006699B2 (en) 2006-02-28
US7095899B2 (en) 2006-08-22
CA2423165C (en) 2012-07-17
US7110610B2 (en) 2006-09-19
EP1349394A2 (en) 2003-10-01
JP2003324757A (ja) 2003-11-14
ES2733023T3 (es) 2019-11-27
US20050276491A1 (en) 2005-12-15
KR100882417B1 (ko) 2009-02-05
RU2321063C2 (ru) 2008-03-27
US7116834B2 (en) 2006-10-03
TWI239489B (en) 2005-09-11

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