BR112021025852A2 - Dispositivo de codificação de vídeo, método de codificação de vídeo, programa de codificação de vídeo, dispositivo de decodificação de vídeo, método de decodificação de vídeo e programa de decodificação de vídeo - Google Patents

Dispositivo de codificação de vídeo, método de codificação de vídeo, programa de codificação de vídeo, dispositivo de decodificação de vídeo, método de decodificação de vídeo e programa de decodificação de vídeo

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Publication number
BR112021025852A2
BR112021025852A2 BR112021025852A BR112021025852A BR112021025852A2 BR 112021025852 A2 BR112021025852 A2 BR 112021025852A2 BR 112021025852 A BR112021025852 A BR 112021025852A BR 112021025852 A BR112021025852 A BR 112021025852A BR 112021025852 A2 BR112021025852 A2 BR 112021025852A2
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BR
Brazil
Prior art keywords
video
block
program
video encoding
video decoding
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BR112021025852A
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English (en)
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BR112021025852B1 (pt
Inventor
Hideki Takehara
Hiroya Nakamura
Hiroyuki Kurashige
Satoru Sakazume
Shigeru Fukushima
Toru Kumakura
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Jvckenwood Corp
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Application filed by Jvckenwood Corp filed Critical Jvckenwood Corp
Publication of BR112021025852A2 publication Critical patent/BR112021025852A2/pt
Publication of BR112021025852B1 publication Critical patent/BR112021025852B1/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
    • H04N19/103—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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding 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
    • H04N19/102—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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/42—Methods 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
    • H04N19/423—Methods 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 characterised by memory arrangements
    • 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
    • H04N19/513—Processing of motion vectors
    • 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
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • 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
    • H04N19/55—Motion estimation with spatial constraints, e.g. at image or region borders
    • 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
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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

Landscapes

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

Abstract

dispositivo de codificação de vídeo, método de codificação de vídeo, programa de codificação de vídeo, dispositivo de decodificação de vídeo, método de decodificação de vídeo e programa se secodificação de vídeo. a presente invenção refere-se a um dispositivo de codificação de imagem que inclui: uma unidade de derivação de vetor de bloco candidato que deriva vetores de bloco candidatos de um bloco alvo em uma imagem alvo a partir de informação sobre codificação armazenada na memória de armazenamento de informação sobre codificação; um seletor que seleciona um vetor de bloco selecionado a partir dos vetores de bloco candidatos; e uma unidade de correção de posição de referência que executa uma correção em relação a um bloco de referência a ser usado como referência pelo vetor de bloco selecionado, de modo que uma posição de referência do bloco de referência seja corrigida para referir-se a um interior de uma região referenciável, na qual uma amostra decodificada na imagem alvo é adquirida a partir da memória de imagem decodificada como um valor de previsão do bloco alvo com base na posição de referência do bloco de referência.
BR112021025852-3A 2019-06-20 2020-06-19 Dispositivo de codificação de imagem, método de codificação de imagem, dispositivo de decodificação de imagem e método de decodificação de imagem BR112021025852B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019-114395 2019-06-20
JP2019114395 2019-06-20
PCT/JP2020/024137 WO2020256102A1 (ja) 2019-06-20 2020-06-19 動画像符号化装置、動画像符号化方法、及び動画像符号化プログラム、動画像復号装置、動画像復号方法及び動画像復号プログラム

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BR112021025852A2 true BR112021025852A2 (pt) 2022-02-08
BR112021025852B1 BR112021025852B1 (pt) 2023-05-16

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US (2) US11936849B2 (pt)
EP (1) EP3989545A4 (pt)
JP (4) JP6958768B2 (pt)
KR (1) KR20210128482A (pt)
CN (2) CN113767622A (pt)
BR (1) BR112021025852B1 (pt)
MX (1) MX2021015089A (pt)
WO (1) WO2020256102A1 (pt)

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EP3989545A4 (en) * 2019-06-20 2022-08-17 JVCKenwood Corporation VIDEO CODING DEVICE, VIDEO CODING METHOD, VIDEO CODING PROGRAM, VIDEO DECODING DEVICE, VIDEO DECODING METHOD AND VIDEO DECODING PROGRAM
JP7063416B2 (ja) * 2019-06-21 2022-05-09 株式会社Ｊｖｃケンウッド 動画像符号化装置、動画像符号化方法、及び動画像符号化プログラム、動画像復号装置、動画像復号方法及び動画像復号プログラム
WO2020262503A1 (ja) * 2019-06-25 2020-12-30 株式会社Ｊｖｃケンウッド 動画像符号化装置、動画像符号化方法、及び動画像符号化プログラム、動画像復号装置、動画像復号方法及び動画像復号プログラム
CN116805968A (zh) * 2022-03-16 2023-09-26 腾讯科技（深圳）有限公司 视频编解码方法、装置、计算机可读介质及电子设备

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EP3989545A1 (en) 2022-04-27
KR20210128482A (ko) 2021-10-26
JP2024051142A (ja) 2024-04-10
BR112021025852B1 (pt) 2023-05-16
MX2021015089A (es) 2022-01-18
US20240179300A1 (en) 2024-05-30
CN113767622A (zh) 2021-12-07
CN115442594A (zh) 2022-12-06
JP7287433B2 (ja) 2023-06-06
JP6958768B2 (ja) 2021-11-02
EP3989545A4 (en) 2022-08-17
US20220109829A1 (en) 2022-04-07
US11936849B2 (en) 2024-03-19
JPWO2020256102A1 (ja) 2021-10-21
JP2022023855A (ja) 2022-02-08
JP2023099774A (ja) 2023-07-13
WO2020256102A1 (ja) 2020-12-24

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