BR112020026590A2 - Aparelho de codificação de imagem, método de codificação de imagem e programa, e aparelho de decodificação de imagem, método de decodificação de imagem e programa - Google Patents

Aparelho de codificação de imagem, método de codificação de imagem e programa, e aparelho de decodificação de imagem, método de decodificação de imagem e programa Download PDF

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Publication number
BR112020026590A2
BR112020026590A2 BR112020026590-0A BR112020026590A BR112020026590A2 BR 112020026590 A2 BR112020026590 A2 BR 112020026590A2 BR 112020026590 A BR112020026590 A BR 112020026590A BR 112020026590 A2 BR112020026590 A2 BR 112020026590A2
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Brazil
Prior art keywords
quantization
blocks
block
sub
size
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BR112020026590-0A
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English (en)
Portuguese (pt)
Inventor
Osamu Kawaguchi
Masato Shima
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Canon Kabushiki Kaisha
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Publication of BR112020026590A2 publication Critical patent/BR112020026590A2/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
    • H04N19/124Quantisation
    • 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
    • H04N19/117Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/119Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/124Quantisation
    • H04N19/126Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/169Methods 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
    • 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
    • H04N19/169Methods 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
    • H04N19/1883Methods 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 relating to sub-band structure, e.g. hierarchical level, directional tree, e.g. low-high [LH], high-low [HL], high-high [HH]
    • 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
    • H04N19/189Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/192Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding the adaptation method, adaptation tool or adaptation type being iterative or recursive
    • 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
    • H04N19/70Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/80Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
BR112020026590-0A 2018-06-27 2019-06-14 Aparelho de codificação de imagem, método de codificação de imagem e programa, e aparelho de decodificação de imagem, método de decodificação de imagem e programa BR112020026590A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2018-122421 2018-06-27
JP2018122421A JP7278719B2 (ja) 2018-06-27 2018-06-27 画像符号化装置、画像符号化方法及びプログラム、画像復号装置、画像復号方法及びプログラム
PCT/JP2019/023715 WO2020004080A1 (ja) 2018-06-27 2019-06-14 画像符号化装置、画像符号化方法及びプログラム、画像復号装置、画像復号方法及びプログラム

Publications (1)

Publication Number Publication Date
BR112020026590A2 true BR112020026590A2 (pt) 2021-03-23

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Country Status (9)

Country Link
US (6) US11523113B2 (https=)
EP (1) EP3817386A4 (https=)
JP (2) JP7278719B2 (https=)
KR (1) KR102599267B1 (https=)
CN (6) CN116320424B (https=)
BR (1) BR112020026590A2 (https=)
RU (2) RU2021129462A (https=)
TW (1) TWI810323B (https=)
WO (1) WO2020004080A1 (https=)

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CN116074531B (zh) * 2021-11-11 2025-01-24 杭州海康威视数字技术股份有限公司 解码方法、编码方法及装置

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Publication number Publication date
US20230067360A1 (en) 2023-03-02
CN116320421A (zh) 2023-06-23
KR20210020136A (ko) 2021-02-23
EP3817386A1 (en) 2021-05-05
RU2021129462A3 (https=) 2022-04-15
US12069259B2 (en) 2024-08-20
CN116320420B (zh) 2026-03-24
JP7278719B2 (ja) 2023-05-22
RU2757541C1 (ru) 2021-10-18
RU2021129462A (ru) 2021-11-23
CN116320424A (zh) 2023-06-23
KR102599267B1 (ko) 2023-11-07
US20240373006A1 (en) 2024-11-07
US12069260B2 (en) 2024-08-20
US12519939B2 (en) 2026-01-06
US12519940B2 (en) 2026-01-06
CN116320424B (zh) 2026-03-24
US20210120245A1 (en) 2021-04-22
WO2020004080A1 (ja) 2020-01-02
JP2020005110A (ja) 2020-01-09
US11523113B2 (en) 2022-12-06
CN116320421B (zh) 2026-03-24
CN112352432B (zh) 2023-03-24
CN116320423A (zh) 2023-06-23
US12537950B2 (en) 2026-01-27
CN116320420A (zh) 2023-06-23
US20240373005A1 (en) 2024-11-07
US20240373007A1 (en) 2024-11-07
JP7516606B2 (ja) 2024-07-16
CN116320422B (zh) 2026-03-24
EP3817386A4 (en) 2022-06-22
CN112352432A (zh) 2021-02-09
US20230069664A1 (en) 2023-03-02
CN116320423B (zh) 2026-03-24
TWI810323B (zh) 2023-08-01
TW202002629A (zh) 2020-01-01
CN116320422A (zh) 2023-06-23
JP2023089211A (ja) 2023-06-27

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