BR112022005632A2 - Método de decodificação, dispositivo de decodificação, meio legível por computador não transitório, aparelho e sistema de codificação - Google Patents

Método de decodificação, dispositivo de decodificação, meio legível por computador não transitório, aparelho e sistema de codificação

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Publication number
BR112022005632A2
BR112022005632A2 BR112022005632A BR112022005632A BR112022005632A2 BR 112022005632 A2 BR112022005632 A2 BR 112022005632A2 BR 112022005632 A BR112022005632 A BR 112022005632A BR 112022005632 A BR112022005632 A BR 112022005632A BR 112022005632 A2 BR112022005632 A2 BR 112022005632A2
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BR
Brazil
Prior art keywords
value
poc
indicator
decoding
sps
Prior art date
Application number
BR112022005632A
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English (en)
Inventor
Wang Ye-Kui
Original Assignee
Huawei Tech Co Ltd
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Publication date
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Publication of BR112022005632A2 publication Critical patent/BR112022005632A2/pt

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/103Selection of coding mode or of prediction mode
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46Embedding additional information in the video signal during the compression process
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/103Selection of coding mode or of prediction mode
    • H04N19/105Selection 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/103Selection of coding mode or of prediction mode
    • H04N19/107Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/103Selection of coding mode or of prediction mode
    • H04N19/11Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • HELECTRICITY
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    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods 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
    • H04N19/136Incoming video signal characteristics or properties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods 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
    • H04N19/136Incoming video signal characteristics or properties
    • H04N19/14Coding unit complexity, e.g. amount of activity or edge presence estimation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods 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
    • H04N19/157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • HELECTRICITY
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    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/17Methods 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
    • H04N19/172Methods 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
    • HELECTRICITY
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    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/17Methods 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
    • H04N19/176Methods 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 block, e.g. a macroblock
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    • H04N19/169Methods 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
    • H04N19/184Methods 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 bits, e.g. of the compressed video stream
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    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/187Methods 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 scalable video layer
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    • H04N19/42Methods 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
    • H04N19/43Hardware specially adapted for motion estimation or compensation
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    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
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    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/573Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
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    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
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    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70Methods 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)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

É fornecido um método de decodificação implementado por um decodificador de vídeo. O método inclui receber (1002) um fluxo de bits incluindo um conjunto de parâmetros de sequência (SPS) contendo um primeiro indicador e um indicador de comprimento de um valor de bits mais significativos (MSB) de contagem de ordem de imagem (POC) quando presente em um cabeçalho referente ao SPS, onde um valor do primeiro indicador especifica que um segundo indicador está presente no cabeçalho referente ao SPS, e onde um valor do segundo indicador especifica que o valor POC MSB está presente no cabeçalho; determinar (1004) um valor POC com base no valor POC MSB; identificar (1006) uma imagem do fluxo de bits com base no valor POC; e decodificar (1008) a imagem para obter uma imagem decodificada.
BR112022005632A 2019-09-24 2020-09-16 Método de decodificação, dispositivo de decodificação, meio legível por computador não transitório, aparelho e sistema de codificação BR112022005632A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962905141P 2019-09-24 2019-09-24
PCT/US2020/050985 WO2021061462A1 (en) 2019-09-24 2020-09-16 Support of mixed irap and non-irap pictures within an access unit in multi-layer video bitstreams

Publications (1)

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BR112022005632A2 true BR112022005632A2 (pt) 2022-07-12

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BR122022009499-6A BR122022009499A2 (pt) 2019-09-24 2020-09-16 Método de codificação implementado por um codificador de vídeo, dispositivo de codificação, sistema e meio legível por computador não transitório
BR122022009501-1A BR122022009501A2 (pt) 2019-09-24 2020-09-16 Método de codificação implementado por um codificador de vídeo, meio legível por computador não transitório, dispositivo de codificação e sistema
BR112022005632A BR112022005632A2 (pt) 2019-09-24 2020-09-16 Método de decodificação, dispositivo de decodificação, meio legível por computador não transitório, aparelho e sistema de codificação
BR112022005396A BR112022005396A2 (pt) 2019-09-24 2020-09-16 Método de decodificação, dispositivo de decodificação, sistema e meio legível por computador não transitório

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BR122022009501-1A BR122022009501A2 (pt) 2019-09-24 2020-09-16 Método de codificação implementado por um codificador de vídeo, meio legível por computador não transitório, dispositivo de codificação e sistema

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US (2) US20220217369A1 (pt)
EP (2) EP4018663A4 (pt)
JP (3) JP2022553128A (pt)
KR (2) KR20220058961A (pt)
CN (4) CN114430907A (pt)
AU (2) AU2020352446A1 (pt)
BR (4) BR122022009499A2 (pt)
CA (2) CA3152298A1 (pt)
CL (2) CL2022000689A1 (pt)
IL (1) IL291614A (pt)
MX (2) MX2022003362A (pt)
WO (2) WO2021080710A1 (pt)

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JP2024075651A (ja) 2024-06-04
WO2021080710A1 (en) 2021-04-29
CN114845117A (zh) 2022-08-02
MX2022003362A (es) 2022-04-11
CN114845116B (zh) 2023-03-03
JP2022553128A (ja) 2022-12-22
BR112022005396A2 (pt) 2022-06-21
WO2021061462A1 (en) 2021-04-01
CN114424564A (zh) 2022-04-29
EP4018665A4 (en) 2022-11-09
KR20220058960A (ko) 2022-05-10
CN114845116A (zh) 2022-08-02
CL2022000689A1 (es) 2022-10-14
US12081784B2 (en) 2024-09-03
EP4018665A1 (en) 2022-06-29
US20220217386A1 (en) 2022-07-07
CA3152298A1 (en) 2021-04-01
JP2022549128A (ja) 2022-11-24
EP4018663A4 (en) 2022-11-09
MX2022003449A (es) 2022-04-19
AU2020372257A1 (en) 2022-04-14
IL291614A (en) 2022-05-01
AU2020372257A8 (en) 2022-05-12
CA3152933A1 (en) 2021-04-29
AU2020352446A1 (en) 2022-04-14
KR20220058961A (ko) 2022-05-10
CN114845117B (zh) 2023-04-11
EP4018663A1 (en) 2022-06-29
BR122022009499A2 (pt) 2022-07-05
US20220217369A1 (en) 2022-07-07
BR122022009501A2 (pt) 2022-07-26
CL2022000700A1 (es) 2022-11-18
CN114430907A (zh) 2022-05-03

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