BR112021017777A2 - Método e dispositivos de codificação e decodificação, dispositivos do lado de codificação e dispositivos do lado de decodificação - Google Patents

Método e dispositivos de codificação e decodificação, dispositivos do lado de codificação e dispositivos do lado de decodificação

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Publication number
BR112021017777A2
BR112021017777A2 BR112021017777A BR112021017777A BR112021017777A2 BR 112021017777 A2 BR112021017777 A2 BR 112021017777A2 BR 112021017777 A BR112021017777 A BR 112021017777A BR 112021017777 A BR112021017777 A BR 112021017777A BR 112021017777 A2 BR112021017777 A2 BR 112021017777A2
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motion vector
encoding
devices
decoding
current block
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BR112021017777A
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English (en)
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Fangdong Chen
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Hangzhou Hikvision Digital Tec
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    • 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
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    • 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
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    • 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
    • H04N19/533—Motion estimation using multistep search, e.g. 2D-log search or one-at-a-time search [OTS]
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    • 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
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    • 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
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    • 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
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    • 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
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    • H04N19/557—Motion estimation characterised by stopping computation or iteration based on certain criteria, e.g. error magnitude being too large or early exit
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    • 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
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    • H04N19/56—Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search
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    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

método e dispositivo de codificação e decodificação, dispositivos do lado de codificação e dispositivos do lado de decodificação. a presente invenção refere-se a método e dispositivos de codificação e decodificação, dispositivo do lado de codificador, e dispositivo do lado de decodificador; refere-se também a dispositivos de meio de armazenamento. o método compreende: se as informações características de um bloco corrente satisfizerem certas condições, determinar um primeiro bloco de referência que corresponde ao bloco corrente de acordo com um primeiro vetor de movimento original do bloco corrente, e determinar um segundo bloco de referência que corresponde ao bloco corrente de acordo com o segundo vetor de movimento original do bloco corrente; ajustar o primeiro vetor de movimento original e o segundo vetor de movimento original de acordo com um primeiro valor de pixel do primeiro bloco de referência e um segundo valor de pixel do segundo bloco de referência de modo a obter um primeiro vetor de movimento alvo que corresponde ao primeiro vetor de movimento original e um segundo vetor de movimento alvo que corresponde ao segundo vetor de movimento original; e codificar ou decodificar o bloco corrente de acordo com o primeiro vetor de movimento alvo e o segundo vetor de movimento alvo.
BR112021017777A 2019-03-11 2020-03-11 Método e dispositivos de codificação e decodificação, dispositivos do lado de codificação e dispositivos do lado de decodificação BR112021017777A2 (pt)

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CN201910182197.8A CN111698509B (zh) 2019-03-11 2019-03-11 一种编解码方法、装置及其设备
PCT/CN2020/078849 WO2020182161A1 (zh) 2019-03-11 2020-03-11 编解码方法与装置、编码端设备和解码端设备

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US (1) US11902563B2 (pt)
EP (1) EP3941056A4 (pt)
JP (2) JP7311619B2 (pt)
KR (1) KR102619925B1 (pt)
CN (67) CN112954329B (pt)
AU (1) AU2020236452B2 (pt)
BR (1) BR112021017777A2 (pt)
CA (2) CA3131447C (pt)
MX (1) MX2021010608A (pt)
SG (1) SG11202109366VA (pt)
WO (3) WO2020182162A1 (pt)
ZA (2) ZA202106161B (pt)

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