BR0303673A - Método de codificação de imagem e método de decodificação de imagem - Google Patents

Método de codificação de imagem e método de decodificação de imagem

Info

Publication number
BR0303673A
BR0303673A BR0303673A BR0303673A BR0303673A BR 0303673 A BR0303673 A BR 0303673A BR 0303673 A BR0303673 A BR 0303673A BR 0303673 A BR0303673 A BR 0303673A BR 0303673 A BR0303673 A BR 0303673A
Authority
BR
Brazil
Prior art keywords
image
memory
encoding
never used
management information
Prior art date
Application number
BR0303673A
Other languages
English (en)
Inventor
Shiniya Kadono
Satoshi Kondo
Makoto Hagai
Kiyofumi Abe
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 BR0303673A publication Critical patent/BR0303673A/pt

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
    • H04N19/10—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
    • 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
    • H04N19/127—Prioritisation of hardware or computational resources
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
    • H04N19/169—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
    • H04N19/17—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 an image region, e.g. an object
    • H04N19/172—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 an image region, e.g. an object the region being a picture, frame or field
    • 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
    • H04N19/17—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 an image region, e.g. an object
    • H04N19/174—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 an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

"MéTODO DE CODIFICAçãO DE IMAGEM E MéTODO DE DECODIFICAçãO DE IMAGEM". A presente invenção refere-se a um método de codificação de imagem e um método de decodificação de imagem pelos quais uma imagem pode ser restaurada corretamente mesmo se parte da informação de gerenciamento de memória for perdida por um erro do canal de transmissão, uma candidata de uma imagem de referência que pode ser referida é selecionada mais apropriadamente e a eficiência da codificação é aperfeiçoada. O método de codificação de imagem inclui a etapa para executar a codificação de uma imagem (Etapa 100), uma etapa para julgar se uma imagem na memória que nunca é utilizada como referência existe (Etapa 102), uma etapa para codificar a informação de gerenciamento de memória para liberar a imagem na memória que nunca é utilizada como referência quando uma imagem na memória que nunca é utilizada como referência existe (Etapa 103), uma etapa para liberar a imagem na memória que nunca é utilizada como referência (Etapa 104), uma etapa para julgar se a informação de gerenciamento de memória que libera a imagem na memória que nunca é utilizada como referência é codificada por se codificar uma imagem imediatamente antes (Etapa 105) e uma etapa para codificar novamente a informação de gerenciamento de memória que libera a imagem na memória que nunca é utilizada como referência quando a informação de gerenciamento de memória é codificada (Etapa 106).
BR0303673A 2002-04-12 2003-04-10 Método de codificação de imagem e método de decodificação de imagem BR0303673A (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2002110424 2002-04-12
US37765602P 2002-05-06 2002-05-06
JP2002190955 2002-06-28
JP2003049711A JP4215197B2 (ja) 2002-04-12 2003-02-26 画像符号化方法および画像復号化方法
PCT/JP2003/004538 WO2003088677A1 (en) 2002-04-12 2003-04-10 Image encoding method and image decoding method

Publications (1)

Publication Number Publication Date
BR0303673A true BR0303673A (pt) 2004-04-20

Family

ID=29255480

Family Applications (3)

Application Number Title Priority Date Filing Date
BRPI0303673-1A BRPI0303673B1 (pt) 2002-04-12 2003-04-10 Método de codificação de imagem
BR0303673A BR0303673A (pt) 2002-04-12 2003-04-10 Método de codificação de imagem e método de decodificação de imagem
BRPI0318816-7A BRPI0318816B1 (pt) 2002-04-12 2003-04-10 Método e aparelho para codificação de imagem

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BRPI0303673-1A BRPI0303673B1 (pt) 2002-04-12 2003-04-10 Método de codificação de imagem

Family Applications After (1)

Application Number Title Priority Date Filing Date
BRPI0318816-7A BRPI0318816B1 (pt) 2002-04-12 2003-04-10 Método e aparelho para codificação de imagem

Country Status (16)

Country Link
US (3) US7167591B2 (pt)
EP (3) EP1381238B1 (pt)
JP (1) JP4215197B2 (pt)
KR (2) KR100985634B1 (pt)
CN (1) CN100438631C (pt)
AU (1) AU2003236032B2 (pt)
BR (3) BRPI0303673B1 (pt)
CA (1) CA2448970C (pt)
DK (1) DK3096515T3 (pt)
ES (1) ES2683241T3 (pt)
HU (1) HUE038680T2 (pt)
MX (1) MXPA03011407A (pt)
MY (1) MY135229A (pt)
PT (1) PT3096515T (pt)
TW (1) TWI262024B (pt)
WO (1) WO2003088677A1 (pt)

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Also Published As

Publication number Publication date
EP3096515B1 (en) 2018-06-06
BRPI0303673B1 (pt) 2019-10-01
EP2178304A3 (en) 2010-09-15
WO2003088677A1 (en) 2003-10-23
AU2003236032A1 (en) 2003-10-27
MY135229A (en) 2008-02-29
MXPA03011407A (es) 2004-06-17
EP2178304A2 (en) 2010-04-21
TW200412152A (en) 2004-07-01
JP4215197B2 (ja) 2009-01-28
CA2448970A1 (en) 2003-10-23
PT3096515T (pt) 2018-10-11
JP2004088723A (ja) 2004-03-18
EP1381238B1 (en) 2016-08-31
HUE038680T2 (hu) 2018-11-28
US7221803B2 (en) 2007-05-22
EP3096515A1 (en) 2016-11-23
EP1381238A1 (en) 2004-01-14
CN100438631C (zh) 2008-11-26
TWI262024B (en) 2006-09-11
US7218787B2 (en) 2007-05-15
US7167591B2 (en) 2007-01-23
EP1381238A4 (en) 2006-07-05
US20070041646A1 (en) 2007-02-22
DK3096515T3 (en) 2018-08-06
EP2178304B1 (en) 2016-09-07
US20040146212A1 (en) 2004-07-29
CA2448970C (en) 2013-03-05
BRPI0318816B1 (pt) 2019-10-01
KR100942344B1 (ko) 2010-02-12
CN1509575A (zh) 2004-06-30
AU2003236032B2 (en) 2008-05-15
KR100985634B1 (ko) 2010-10-05
KR20080023763A (ko) 2008-03-14
ES2683241T3 (es) 2018-09-25
KR20040099094A (ko) 2004-11-26
US20070041648A1 (en) 2007-02-22

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