BR112022016529A2 - Método de processamento de vídeo, aparelho para processar dados de vídeo e meios legíveis por computador - Google Patents

Método de processamento de vídeo, aparelho para processar dados de vídeo e meios legíveis por computador

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Publication number
BR112022016529A2
BR112022016529A2 BR112022016529A BR112022016529A BR112022016529A2 BR 112022016529 A2 BR112022016529 A2 BR 112022016529A2 BR 112022016529 A BR112022016529 A BR 112022016529A BR 112022016529 A BR112022016529 A BR 112022016529A BR 112022016529 A2 BR112022016529 A2 BR 112022016529A2
Authority
BR
Brazil
Prior art keywords
video
syntax element
pps
image
processing
Prior art date
Application number
BR112022016529A
Other languages
English (en)
Inventor
Wang Ye-Kui
Zhang Li
Original Assignee
Bytedance Inc
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 Bytedance Inc filed Critical Bytedance Inc
Publication of BR112022016529A2 publication Critical patent/BR112022016529A2/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
    • H04N19/50—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
    • H04N19/70—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
    • H04N19/10—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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/10—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
    • H04N19/10—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
    • H04N19/188—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 video data packet, e.g. a network abstraction layer [NAL] unit
    • 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
    • H04N19/577—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
    • H04N19/60—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

Landscapes

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

Abstract

MÉTODO DE PROCESSAMENTO DE VÍDEO, APARELHO PARA PROCESSAR DADOS DE VÍDEO E MEIOS LEGÍVEIS POR COMPUTADOR. Sistemas, métodos e aparelhos para processamento de vídeo, que incluem predição ponderada para blocos de vídeo, são descritos. Um método de exemplo inclui desempenhar uma conversão, de acordo com uma regra, entre uma fatia atual de uma imagem atual de um vídeo e um bitstream do vídeo, em que a regra especifica que um primeiro elemento de sintaxe de um conjunto de parâmetros de imagem (PPS) e um segundo elemento de sintaxe do PPS controlam se um terceiro elemento de sintaxe está incluído no bitstream e em que o primeiro elemento de sintaxe indica se uma predição ponderada está habilitada para fatias bidirecionais de imagens codificadas referentes ao PPS, o segundo elemento de sintaxe indica se a informação relacionada à predição ponderada está presente em cabeçalhos de imagem ou cabeçalhos de fatia de imagens codificadas referentes ao PPS e o terceiro elemento de sintaxe indica um número de ponderações associadas a uma lista de imagens de referência 1 da fatia atual.
BR112022016529A 2020-02-19 2021-01-26 Método de processamento de vídeo, aparelho para processar dados de vídeo e meios legíveis por computador BR112022016529A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202062978740P 2020-02-19 2020-02-19
PCT/US2021/015006 WO2021167755A1 (en) 2020-02-19 2021-01-26 Signalling of weights of a reference picture list

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US (4) US12041257B2 (pt)
EP (3) EP4091327A4 (pt)
JP (4) JP7410316B2 (pt)
KR (3) KR20220143023A (pt)
CN (3) CN115152207B (pt)
AR (3) AR121197A1 (pt)
BR (1) BR112022016529A2 (pt)
MX (1) MX2022009920A (pt)
WO (3) WO2021167755A1 (pt)

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US12615395B2 (en) 2026-04-28
KR20220138053A (ko) 2022-10-12
CN115152207A (zh) 2022-10-04
EP4091327A1 (en) 2022-11-23
JP2023514772A (ja) 2023-04-10
KR20220143030A (ko) 2022-10-24
CN115136598B (zh) 2025-06-13
EP4091328A4 (en) 2023-05-03
JP7410315B2 (ja) 2024-01-09
MX2022009920A (es) 2022-09-09
WO2021167755A1 (en) 2021-08-26
AR121198A1 (es) 2022-04-27
JP7410316B2 (ja) 2024-01-09
JP2023514774A (ja) 2023-04-10
JP2024026463A (ja) 2024-02-28
EP4091327A4 (en) 2023-05-03
KR102873374B1 (ko) 2025-10-20
EP4091322A1 (en) 2022-11-23
AR121197A1 (es) 2022-04-27
US20220400279A1 (en) 2022-12-15
AR121196A1 (es) 2022-04-27
JP7768961B2 (ja) 2025-11-12
US11863781B2 (en) 2024-01-02
CN115152207B (zh) 2025-05-13
US20220400278A1 (en) 2022-12-15
US20220400290A1 (en) 2022-12-15
WO2021167757A1 (en) 2021-08-26
JP7410317B2 (ja) 2024-01-09
CN115136598A (zh) 2022-09-30
KR102928905B1 (ko) 2026-02-23
WO2021167758A1 (en) 2021-08-26
JP2023514773A (ja) 2023-04-10
EP4091328A1 (en) 2022-11-23
KR20220143023A (ko) 2022-10-24
US12301855B2 (en) 2025-05-13
EP4091322A4 (en) 2023-04-26
CN115136606A (zh) 2022-09-30
CN115136606B (zh) 2025-05-09
US12041257B2 (en) 2024-07-16
US20240107047A1 (en) 2024-03-28

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