BR112022004553A2 - Método de processamento de dados de vídeo, aparelho para processar dados de vídeo, meio de armazenamento e meio de gravação não transitórios legíveis por computador - Google Patents

Método de processamento de dados de vídeo, aparelho para processar dados de vídeo, meio de armazenamento e meio de gravação não transitórios legíveis por computador

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Publication number
BR112022004553A2
BR112022004553A2 BR112022004553A BR112022004553A BR112022004553A2 BR 112022004553 A2 BR112022004553 A2 BR 112022004553A2 BR 112022004553 A BR112022004553 A BR 112022004553A BR 112022004553 A BR112022004553 A BR 112022004553A BR 112022004553 A2 BR112022004553 A2 BR 112022004553A2
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BR
Brazil
Prior art keywords
prediction
video data
block
final
sample
Prior art date
Application number
BR112022004553A
Other languages
English (en)
Inventor
Hongbin Liu
Jizheng Xu
Kai Zhang
Li Zhang
Yang Wang
Yue Wang
Original Assignee
Beijing Bytedance Network Tech Co Ltd
Bytedance Inc
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Application filed by Beijing Bytedance Network Tech Co Ltd, Bytedance Inc filed Critical Beijing Bytedance Network Tech Co Ltd
Publication of BR112022004553A2 publication Critical patent/BR112022004553A2/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
    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/134—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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/176—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 block, e.g. a macroblock
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/186—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 colour or a chrominance component
    • 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
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

método de processamento de dados de vídeo, aparelho para processar dados de vídeo, meio de armazenamento e meio de gravação não transitórios legíveis por computador. um método de processamento de vídeo é descrito. o método compreende: derivar, para uma conversão entre um bloco atual de um vídeo e uma representação codificada do vídeo, um bloco de predição para o bloco atual que é determinado de acordo com uma ferramenta de ponderação de nível de unidade de codificação bidirecional (bcw) na qual ponderadas são usadas para determinar uma soma ponderada de dois blocos de predição iniciais usados para determinar o bloco de predição; e desempenhar a conversão usando o bloco de predição; em que a derivação do bloco de predição compreende: aplicar as ponderadas a duas amostras de predição intermediárias que pertencem respectivamente aos dois blocos de predição iniciais para derivar uma amostra de predição final; e desempenhar uma operação de desvio à direita para a amostra de predição final para converter uma profundidade de bit da amostra de predição final, em que a operação de deslocamento à direita é pbsample>> (shift1+3) ), em que pbsample representa a amostra de predição final, shift1 é preparado como igual a max(2, 14-bitdepth); e determinar o bloco de predição com base na amostra de predição final.
BR112022004553A 2019-09-13 2020-09-11 Método de processamento de dados de vídeo, aparelho para processar dados de vídeo, meio de armazenamento e meio de gravação não transitórios legíveis por computador BR112022004553A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2019105825 2019-09-13
PCT/CN2020/114761 WO2021047632A1 (en) 2019-09-13 2020-09-11 Weighted sample bi-prediction in video coding

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BR112022004553A2 true BR112022004553A2 (pt) 2022-06-07

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US (3) US11595658B2 (pt)
EP (1) EP4011077A4 (pt)
JP (2) JP7323710B2 (pt)
KR (1) KR20220058551A (pt)
CN (2) CN114402610A (pt)
BR (1) BR112022004553A2 (pt)
WO (2) WO2021047632A1 (pt)

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US11595658B2 (en) 2023-02-28
CN114402591A (zh) 2022-04-26
US20220201314A1 (en) 2022-06-23
JP2022548580A (ja) 2022-11-21
CN114402610A (zh) 2022-04-26
JP7323710B2 (ja) 2023-08-08
EP4011077A1 (en) 2022-06-15
WO2021047631A1 (en) 2021-03-18
KR20220058551A (ko) 2022-05-09
WO2021047632A1 (en) 2021-03-18
US20220201310A1 (en) 2022-06-23
JP2023145592A (ja) 2023-10-11
US20240098267A1 (en) 2024-03-21
EP4011077A4 (en) 2022-11-30

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