DK2271108T3 - Fremgangsmåde til kodning af bevægelige billeder og fremgangsmåde til dekodning af bevægelige billeder - Google Patents

Fremgangsmåde til kodning af bevægelige billeder og fremgangsmåde til dekodning af bevægelige billeder Download PDF

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DK2271108T3
DK2271108T3 DK10182783.0T DK10182783T DK2271108T3 DK 2271108 T3 DK2271108 T3 DK 2271108T3 DK 10182783 T DK10182783 T DK 10182783T DK 2271108 T3 DK2271108 T3 DK 2271108T3
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picture
motion vector
block
coding
pictures
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DK10182783.0T
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Satoshi Kondo
Shinya Kadono
Makoto Hagai
Kiyofumi Abe
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Panasonic Ip Corp America
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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
    • 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
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • H—ELECTRICITY
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    • H04N19/127—Prioritisation of hardware or computational resources
    • H—ELECTRICITY
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
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    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
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    • H04N19/16—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter for a given display mode, e.g. for interlaced or progressive display mode
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    • 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
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    • 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
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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    • 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
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    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
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    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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

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  • 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)
  • Processing Or Creating Images (AREA)
  • Television Signal Processing For Recording (AREA)

Claims (6)

  1. FREMGANGSMÅDE TIL KODNING AF BEVÆGELIGE BILLEDER OG FREMGANGSMÅDE TIL DEKODNING AF BEVÆGELIGE BILLEDER
    1. Kodningsfremgangsmåde til kodning af et billede, hvilken kodningsfremgangsmåde omfatter: et kodningstrin til bestemmelse af en første bevægelsesvektor og en anden bevægelsesvektor for en aktuel blok, der skal kodes, baseret på en bevægelsesvektor for en samplaceret blok, der er en blok inkluderet i et tidligere kodet billede og samplaceret med den aktuelle blok, og kodning af den aktuelle blok ved udførelse af bevægelseskompensation på den aktuelle blok i direkte modus ved anvendelse af den første bevægelsesvektor og den anden bevægelsesvektor for den aktuelle blok og et første og et andet referencebillede, der svarer til den første bevægelsesvektor og den anden bevægelsesvektor for den aktuelle blok, kendetegnet ved, at kodningstrinnet indbefatter: såfremt den samplacerede blok er i det andet referencebillede og er kodet ved anvendelse af to bevægelsesvektorer og to referencebilleder, der henholdsvis svarer til de to bevægelsesvektorer, generering af den første bevægelsesvektor og den anden bevægelsesvektor, der skal anvendes til kodning af den aktuelle blok ved udførelse af bevægelseskompensation på den aktuelle blok i direkte modus ved skalering, ved anvendelse af en forskel mellem information, der indikerer afspilningsrækkefølge for billeder, af én af de to bevægelsesvektorer anvendt til kodning af den samplacerede blok; og kodning af den aktuelle blok ved udførelse af bevægelseskompensation på den aktuelle blok i direkte modus ved anvendelse af de genererede første og anden bevægelsesvektorer for den aktuelle blok og de første og anden referencebilleder, der svarer til de genererede første og anden bevægelsesvektorer.
  2. 2. Kodningsfremgangsmåde ifølge krav 1, hvor det andet referencebillede for den aktuelle blok er det tidligere kodede billede indbefattende den samplacerede blok, og det første referencebillede er ét af de to referencebilleder, der er anvendt til kodning af den samplacerede blok og svarer til den bevægelsesvektor, der er skaleret til generering af den første bevægelsesvektor og den anden bevægelsesvektor for den aktuelle blok.
  3. 3. Kodningsfremgangsmåde ifølge krav 1, Hvor, såfremt den samplacerede blok er blevet kodet i direkte modus, den første bevægelsesvektor og den anden bevægelsesvektor for den aktuelle blok genereres ved anvendelse af én af de to bevægelsesvektorer, der er anvendt til kodning af den samplacerede blok i direkte modus.
  4. 4. Kodningsfremgangsmåde ifølge krav 2, hvor informationen, der indikerer afspilningsrækkefølge for billeder, er: første information, der indikerer en position i afspilningsrækkefølgen for billedet indbefattende den aktuelle blok; anden information, der indikerer en position i afspilningsrækkefølgen for det første referencebillede for den aktuelle blok; og tredje information, der indikerer en position i afspilningsrækkefølgen for det andet referencebillede for den aktuelle blok, der ligeledes er billedet indbefattende den samplacerede blok, og forskellene mellem information er en forskel mellem den første information og den anden information, en forskel mellem den første information og den tredje information, og en forskel mellem den anden information og den tredje information.
  5. 5. Kodningsanordning der koder et billede, hvilken kodningsanordning omfatter: en kodningsenhed, der kan anvendes til at bestemme en første bevægelsesvektor og en anden bevægelsesvektor for en aktuel blok, der skal kodes, baseret på en bevægelsesvektor for en samplaceret blok, der er en blok inkluderet i et tidligere kodet billede og samplaceret med den aktuelle blok, og til at kode den aktuelle blok ved udførelse af bevægelseskompensation på den aktuelle blok i direkte modus ved anvendelse af den første bevægelsesvektor og den anden bevægelsesvektor til den aktuelle blok og et første og et andet referencebillede der svarer til den første bevægelsesvektor og den anden bevægelsesvektor for den aktuelle blok, kendetegnet ved, at såfremt den samplacerede blok er i det andet referencebillede og er blevet kodet ved anvendelse af to bevægelsesvektorer og to referencebilleder, der henholdsvis svarer til de to bevægelsesvektorer, kodningsenheden kan anvendes til at generere den første bevægelsesvektor og den anden bevægelsesvektor, der skal anvendes til kodning af den aktuelle blok ved udførelse af bevægelseskompensation på den aktuelle blok i direkte modus ved skalering, ved anvendelse af en forskel mellem information, der indikerer afspilningsrækkefølge for billeder, af én af de to bevægelsesvektorer anvendt til kodning af den samplacerede blok, og til at kode den aktuelle blok ved udførelse af bevægelseskompensation på den aktuelle blok i direkte modus ved anvendelse af de genererede første og anden bevægelsesvektorer for den aktuelle blok og de første og anden referencebilleder, der svarer til de genererede første og anden bevægelsesvektorer.
  6. 6. Datalagringsmedium, hvorpå et program til kodning af et billede er lagret, hvilket program bevirker, at en computer udfører kodningen ved hjælp af kodningsfremgangsmåden ifølge et hvilket som helst af kravene 1 til 4.
DK10182783.0T 2002-03-04 2003-02-26 Fremgangsmåde til kodning af bevægelige billeder og fremgangsmåde til dekodning af bevægelige billeder DK2271108T3 (da)

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JP2002056919 2002-03-04
JP2002118598 2002-04-19
JP2002193027 2002-07-02
EP03707082.8A EP1406450B1 (en) 2002-03-04 2003-02-26 Moving picture coding method and moving picture decoding method

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DK03707082.8T DK1406450T3 (da) 2002-03-04 2003-02-26 Fremgangsmåde til kodning af levende billeder og fremgangsmåde til afkodning af levende billeder
DK10182789.7T DK2271109T3 (da) 2002-03-04 2003-02-26 Fremgangsmåde til kodning af levende billeder og fremgangsmåde til afkodning af levende billeder
DK10182783.0T DK2271108T3 (da) 2002-03-04 2003-02-26 Fremgangsmåde til kodning af bevægelige billeder og fremgangsmåde til dekodning af bevægelige billeder
DK16156358.0T DK3054679T3 (da) 2002-03-04 2003-02-26 Fremgangsmåde til kodning af levende billeder og fremgangsmåde til afkodning af levende billeder
DK10182775.6T DK2271107T3 (da) 2002-03-04 2003-02-26 Fremgangsmåde til kodning af levende billeder og fremgangsmåde til afkodning af levende billeder
DK16156344.0T DK3051814T3 (da) 2002-03-04 2003-02-26 Fremgangsmåde til kodning af levende billeder og fremgangsmåde til afkodning af levende billeder

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DK16156344.0T DK3051814T3 (da) 2002-03-04 2003-02-26 Fremgangsmåde til kodning af levende billeder og fremgangsmåde til afkodning af levende billeder

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EP (9) EP3490254B1 (da)
JP (1) JP2004088722A (da)
KR (2) KR100948714B1 (da)
CN (1) CN100474933C (da)
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CA (3) CA2443848C (da)
CY (3) CY1115427T1 (da)
DK (6) DK1406450T3 (da)
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HU (6) HUE024412T2 (da)
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MY (1) MY139955A (da)
PT (6) PT2271107E (da)
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