BR0302966A - Método de codificação de imagem em movimento e método de decodificação de imagem em movimento - Google Patents

Método de codificação de imagem em movimento e método de decodificação de imagem em movimento

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Publication number
BR0302966A
BR0302966A BR0302966A BR0302966A BR0302966A BR 0302966 A BR0302966 A BR 0302966A BR 0302966 A BR0302966 A BR 0302966A BR 0302966 A BR0302966 A BR 0302966A BR 0302966 A BR0302966 A BR 0302966A
Authority
BR
Brazil
Prior art keywords
coding
pixels
maximum number
moving image
decoding apparatus
Prior art date
Application number
BR0302966A
Other languages
English (en)
Inventor
Kiyofumi Abe
Shinya Kadono
Makoto Hagai
Satoshi Kondo
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of BR0302966A publication Critical patent/BR0302966A/pt

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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
    • 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
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • 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
    • H04N19/114—Adapting the group of pictures [GOP] structure, e.g. number of B-frames between two anchor frames
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • 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
    • H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
    • 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
    • H04N19/162—User input
    • 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
    • H04N19/164—Feedback from the receiver or from the transmission channel
    • 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
    • H04N19/177—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 being a group of pictures [GOP]
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/58—Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
    • 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

"MéTODO DE CODIFICAçãO DE IMAGEM EM MOVIMENTO E MéTODO DE DECODIFICAçãO DE IMAGEM EM MOVIMENTO". A presente invenção refere-se a um aparelho de codificação de filme (10a) de acordo com a presente invenção, que inclui um analisador de nível (100a), que decide o número máximo de pixels intraquadro, o qual pode ser codificado (Nfpx) e o número máximo de pixels de armazenamento os quais podem ser armazenados em uma memória de ilustração de um aparelho de decodificação (Nspx) com base em um identificador de nível (Lst), que indica um nível de codificação que é projetado pelo usuário, desse modo julgando-se se a codificação de uma imagem de entrada é possível ou não e calculando-se o número máximo de ilustrações de referência (Nrpn) como o número de ilustrações candidatas a referência as quais podem ser referidas em uma codificação de predição interilustração, com base no número máximo de pixels intraquadro (Nfpx) e o tamanho de imagem de entrada (o número de pixels verticais (Nhpx) e o número de pixels horizontais (Nwpx). Um aparelho de decodificação para o qual um fluxo de bits a partir do aparelho de codificação de filme (10a) é suprido sempre pode decodificar o fluxo de bits satisfatoriamente, e realizar uma decodificação de predição interilustração correspondente à codificação de predição interilustração ao término da codificação. Conseq³entemente, áreas de memória de um aparelho de codificação e de um aparelho de decodificação, que são adaptadas a um método de codificação no qual não há restrição quanto à capacidade da área de memória, podem ser projetadas.
BR0302966A 2002-02-01 2003-01-31 Método de codificação de imagem em movimento e método de decodificação de imagem em movimento BR0302966A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002026197 2002-02-01
JP2002334422 2002-11-18
PCT/JP2003/000992 WO2003065733A1 (en) 2002-02-01 2003-01-31 Moving image coding method and moving image decoding method

Publications (1)

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BR0302966A true BR0302966A (pt) 2004-07-06

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BRPI0302966-2A BRPI0302966B1 (pt) 2002-02-01 2003-01-31 Método de codificação de imagem em movimento e método de decodificação de imagem em movimento
BR0302966A BR0302966A (pt) 2002-02-01 2003-01-31 Método de codificação de imagem em movimento e método de decodificação de imagem em movimento

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Country Link
US (6) US7936825B2 (pt)
EP (3) EP1475970B1 (pt)
JP (5) JP4220574B2 (pt)
KR (2) KR100926845B1 (pt)
CN (1) CN1271862C (pt)
AT (3) ATE384404T1 (pt)
AU (1) AU2003208086B2 (pt)
BR (2) BRPI0302966B1 (pt)
CA (1) CA2442945C (pt)
DE (3) DE60312960T2 (pt)
ES (2) ES2299171T3 (pt)
HK (1) HK1110729A1 (pt)
MX (1) MXPA03009131A (pt)
WO (1) WO2003065733A1 (pt)

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Also Published As

Publication number Publication date
JP2008289205A (ja) 2008-11-27
WO2003065733A1 (en) 2003-08-07
US20080063058A1 (en) 2008-03-13
US7664178B2 (en) 2010-02-16
US7715478B2 (en) 2010-05-11
US20080069212A1 (en) 2008-03-20
KR100944552B1 (ko) 2010-02-25
KR20070108572A (ko) 2007-11-12
JP2011254535A (ja) 2011-12-15
EP1475970A4 (en) 2006-07-12
CN1271862C (zh) 2006-08-23
US8396132B2 (en) 2013-03-12
ATE358946T1 (de) 2007-04-15
DE60318757T2 (de) 2009-01-15
JP2012010380A (ja) 2012-01-12
JP4223544B2 (ja) 2009-02-12
JP4860011B2 (ja) 2012-01-25
DE60318758T2 (de) 2009-01-08
ES2299170T3 (es) 2008-05-16
EP1475970A1 (en) 2004-11-10
DE60312960T2 (de) 2007-12-13
US7936825B2 (en) 2011-05-03
JP4860010B2 (ja) 2012-01-25
EP1765018B1 (en) 2008-01-16
EP1765019B1 (en) 2008-01-16
US7664179B2 (en) 2010-02-16
CA2442945C (en) 2012-05-08
ATE384404T1 (de) 2008-02-15
US20080063059A1 (en) 2008-03-13
JP2009077452A (ja) 2009-04-09
HK1110729A1 (en) 2008-07-18
BRPI0302966B1 (pt) 2018-02-14
JP4220574B2 (ja) 2009-02-04
DE60312960D1 (de) 2007-05-16
MXPA03009131A (es) 2004-02-12
EP1475970B1 (en) 2007-04-04
AU2003208086B2 (en) 2007-11-15
US8737473B2 (en) 2014-05-27
CN1498502A (zh) 2004-05-19
JP2008301533A (ja) 2008-12-11
US20040233995A1 (en) 2004-11-25
CA2442945A1 (en) 2003-08-07
DE60318758D1 (de) 2008-03-06
ES2299171T3 (es) 2008-05-16
EP1765018A1 (en) 2007-03-21
ATE384403T1 (de) 2008-02-15
EP1765019A1 (en) 2007-03-21
DE60318757D1 (de) 2008-03-06
US20080063087A1 (en) 2008-03-13
KR20040077444A (ko) 2004-09-04
KR100926845B1 (ko) 2009-11-13
JP4859936B2 (ja) 2012-01-25
AU2003208086A2 (en) 2003-09-02
US20100172406A1 (en) 2010-07-08

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