BR112019006838A2 - predição de vetor de movimento para modelos de movimento afim em codificação de vídeo - Google Patents

predição de vetor de movimento para modelos de movimento afim em codificação de vídeo

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Publication number
BR112019006838A2
BR112019006838A2 BR112019006838A BR112019006838A BR112019006838A2 BR 112019006838 A2 BR112019006838 A2 BR 112019006838A2 BR 112019006838 A BR112019006838 A BR 112019006838A BR 112019006838 A BR112019006838 A BR 112019006838A BR 112019006838 A2 BR112019006838 A2 BR 112019006838A2
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BR
Brazil
Prior art keywords
motion vector
video decoder
block
current block
affine
Prior art date
Application number
BR112019006838A
Other languages
English (en)
Inventor
Chen Jianle
Zhang Li
Karczewicz Marta
Chien Wei-Jung
Chen Yi-Wen
Sun Yu-Chen
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR112019006838A2 publication Critical patent/BR112019006838A2/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
    • 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
    • H04N19/10—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
    • H04N19/136—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
    • H04N19/169—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
    • H04N19/50—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
    • H04N19/537—Motion estimation other than block-based

Landscapes

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

Abstract

um decodificador de vídeo seleciona um bloco afim de origem. o bloco afim de origem é um bloco codificado com afim que espacialmente circunda um bloco atual. além disso, o decodificador de vídeo extrapola os vetores de movimento de pontos de controle do bloco afim de origem para determinar preditores de vetor de movimento para pontos de controle do bloco atual. o decodificador de vídeo insere, em uma lista de candidato de conjunto de preditor de vetor de movimento (mvp) afim, um conjunto de mvp afim que inclui os preditores de vetor de movimento para os pontos de controle do bloco atual. o decodificador de vídeo também determina, com base em um índice sinalizado em um fluxo de bits, um conjunto de mvp afim selecionado na lista de candidato de conjunto de mvp afim. o decodificador de vídeo obtém, a partir do fluxo de bits, diferenças de vetores de movimento (mvds) que indicam diferenças entre vetores de movimento dos pontos de controle do bloco atual e preditores de vetor de movimento no conjunto de mvp afim selecionado.
BR112019006838A 2016-10-05 2017-10-05 predição de vetor de movimento para modelos de movimento afim em codificação de vídeo BR112019006838A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662404719P 2016-10-05 2016-10-05
US15/725,052 US10448010B2 (en) 2016-10-05 2017-10-04 Motion vector prediction for affine motion models in video coding
PCT/US2017/055350 WO2018067823A1 (en) 2016-10-05 2017-10-05 Motion vector prediction for affine motion models in video coding

Publications (1)

Publication Number Publication Date
BR112019006838A2 true BR112019006838A2 (pt) 2019-06-25

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BR112019006838A BR112019006838A2 (pt) 2016-10-05 2017-10-05 predição de vetor de movimento para modelos de movimento afim em codificação de vídeo

Country Status (17)

Country Link
US (2) US10448010B2 (pt)
EP (2) EP3758378B1 (pt)
JP (1) JP6817425B2 (pt)
KR (1) KR102147614B1 (pt)
CN (1) CN109792533B (pt)
AU (1) AU2017340631B2 (pt)
BR (1) BR112019006838A2 (pt)
CA (1) CA3035587C (pt)
ES (1) ES2841312T3 (pt)
HU (1) HUE051174T2 (pt)
MX (1) MX2019003762A (pt)
MY (1) MY200181A (pt)
PH (1) PH12019500417A1 (pt)
RU (1) RU2718225C1 (pt)
SG (1) SG11201901632QA (pt)
TW (1) TWI696384B (pt)
WO (1) WO2018067823A1 (pt)

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