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BR112021006547A2 - método de previsão para decodificação, dispositivo de previsão para decodificação e mídia de armazenamento de computador que armazena um programa de previsão para decodificação - Google Patents

método de previsão para decodificação, dispositivo de previsão para decodificação e mídia de armazenamento de computador que armazena um programa de previsão para decodificação

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Publication number
BR112021006547A2
BR112021006547A2 BR112021006547A BR112021006547A BR112021006547A2 BR 112021006547 A2 BR112021006547 A2 BR 112021006547A2 BR 112021006547 A BR112021006547 A BR 112021006547A BR 112021006547 A BR112021006547 A BR 112021006547A BR 112021006547 A2 BR112021006547 A2 BR 112021006547A2
Authority
BR
Brazil
Prior art keywords
decoding
prediction
pixel points
adjacent
storage media
Prior art date
Application number
BR112021006547A
Other languages
English (en)
Inventor
Yang Fuzheng
Huo Junyan
Wan Shuai
Li Xinwei
Ma Yanzhuo
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp 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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Publication of BR112021006547A2 publication Critical patent/BR112021006547A2/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
    • 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
    • H04N19/132—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
    • H04N19/134—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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)

Abstract

método de previsão para decodificação, dispositivo de previsão para decodificação e mídia de armazenamento de computador que armazena um programa de previsão para decodificação. a presente revelação se refere a um método e aparelho de previsão de decodificação e uma mídia de armazenamento de computador. o método compreende: obter pontos de pixel de referência adjacentes a pelo menos uma borda de um bloco a ser decodificado de modo a obter um primeiro conjunto de pixels de referência adjacentes; determinar um ponto de referência da pelo menos uma borda e determinar posições de pontos de pixel de referência a serem selecionadas que correspondam à pelo menos uma borda de acordo com um número predefinido de amostras; com base nas posições dos pontos de pixel de referência a serem selecionados, selecionar pontos de pixel de referência que correspondam às posições dos pontos de pixel de referência a serem selecionados a partir do primeiro conjunto de pixels de referência adjacentes e formar um subconjunto de pixels de referência adjacentes dos pontos de pixel de referência selecionados; e com base no subconjunto dos pixels de referência adjacentes, realizar a decodificação preditiva no bloco a ser decodificado.
BR112021006547A 2018-12-25 2018-12-25 método de previsão para decodificação, dispositivo de previsão para decodificação e mídia de armazenamento de computador que armazena um programa de previsão para decodificação BR112021006547A2 (pt)

Applications Claiming Priority (1)

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PCT/CN2018/123657 WO2020132908A1 (zh) 2018-12-25 2018-12-25 解码预测方法、装置及计算机存储介质

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US (6) US11297313B2 (pt)
EP (2) EP4404564A3 (pt)
JP (2) JP7481332B2 (pt)
KR (1) KR20210106547A (pt)
CN (8) CN116456084A (pt)
AU (1) AU2018454766A1 (pt)
BR (1) BR112021006547A2 (pt)
CA (2) CA3113787C (pt)
IL (1) IL281399A (pt)
MX (1) MX2021003940A (pt)
PH (1) PH12021550515A1 (pt)
SG (1) SG11202102435VA (pt)
WO (1) WO2020132908A1 (pt)
ZA (1) ZA202101726B (pt)

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PH12021550515A1 (en) 2022-02-21
US11683477B2 (en) 2023-06-20
IL281399A (en) 2021-04-29
CN113068025A (zh) 2021-07-02
SG11202102435VA (en) 2021-04-29
US11297313B2 (en) 2022-04-05
WO2020132908A1 (zh) 2020-07-02
US20220182610A1 (en) 2022-06-09
CN116456082A (zh) 2023-07-18
EP3829167A4 (en) 2021-08-11
US11785208B2 (en) 2023-10-10
EP4404564A2 (en) 2024-07-24
US20220182608A1 (en) 2022-06-09
CN116456084A (zh) 2023-07-18
US20220182611A1 (en) 2022-06-09
CA3222255A1 (en) 2020-07-02
CA3113787C (en) 2024-02-13
JP2024099733A (ja) 2024-07-25
CA3113787A1 (en) 2020-07-02
US20230308643A1 (en) 2023-09-28
EP3829167A1 (en) 2021-06-02
CN116456081A (zh) 2023-07-18
ZA202101726B (en) 2022-07-27
CN113068026B (zh) 2023-05-05
JP2022520295A (ja) 2022-03-30
KR20210106547A (ko) 2021-08-30
US20220182609A1 (en) 2022-06-09
US20210243431A1 (en) 2021-08-05
JP7481332B2 (ja) 2024-05-10
EP3829167B1 (en) 2024-07-17
AU2018454766A1 (en) 2021-04-08
CN116614622A (zh) 2023-08-18
MX2021003940A (es) 2021-05-27
US11683478B2 (en) 2023-06-20
CN113068026A (zh) 2021-07-02
CN116456083A (zh) 2023-07-18
EP4404564A3 (en) 2024-10-23
CN112470468A (zh) 2021-03-09
CN113068025B (zh) 2023-05-12
US11677936B2 (en) 2023-06-13

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