BR112017024275A2 - determinação de região de busca para inter-codificação dentro de imagem específica de dados de vídeo - Google Patents

determinação de região de busca para inter-codificação dentro de imagem específica de dados de vídeo

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Publication number
BR112017024275A2
BR112017024275A2 BR112017024275A BR112017024275A BR112017024275A2 BR 112017024275 A2 BR112017024275 A2 BR 112017024275A2 BR 112017024275 A BR112017024275 A BR 112017024275A BR 112017024275 A BR112017024275 A BR 112017024275A BR 112017024275 A2 BR112017024275 A2 BR 112017024275A2
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BR
Brazil
Prior art keywords
video data
search region
encoding
data image
resolution
Prior art date
Application number
BR112017024275A
Other languages
English (en)
Inventor
pang Chao
Rapaka Krishnakanth
Karczewicz Marta
Laxman Joshi Rajan
Seregin Vadim
Original Assignee
Qualcomm Inc
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Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR112017024275A2 publication Critical patent/BR112017024275A2/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
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
    • 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
    • H04N19/169—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
    • H04N19/50—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
    • H04N19/57—Motion estimation characterised by a search window with variable size or shape
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N19/50—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

Abstract

um método exemplar para codificar dados de vídeo inclui determinar uma resolução que será utilizada para um vetor de movimento que identifica um bloco preditor na imagem atual de dados de vídeo para o bloco atual na imagem atual de dados de vídeo; determinar, com base na resolução determinada, uma região de busca para o bloco atual de modo que o tamanho da região de busca seja menor no caso de a resolução ser fracionária em pixels do que no caso de a resolução ser de pixel de número inteiro; selecionar de dentro da região de busca, um bloco preditor para o bloco atual; determinar o vetor de movimento que identifica o bloco preditor selecionado para o bloco atual; e codificar, em um fluxo de bits de vídeo codificado, uma representação do vetor de movimento.
BR112017024275A 2015-05-11 2016-05-11 determinação de região de busca para inter-codificação dentro de imagem específica de dados de vídeo BR112017024275A2 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201562159839P 2015-05-11 2015-05-11
US201562173248P 2015-06-09 2015-06-09
US201562175179P 2015-06-12 2015-06-12
US15/151,416 US10200713B2 (en) 2015-05-11 2016-05-10 Search region determination for inter coding within a particular picture of video data
PCT/US2016/031888 WO2016183216A1 (en) 2015-05-11 2016-05-11 Search region determination for inter coding within a particular picture of video data

Publications (1)

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BR112017024275A2 true BR112017024275A2 (pt) 2018-07-24

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Country Link
US (1) US10200713B2 (pt)
EP (1) EP3295672B1 (pt)
JP (1) JP6783799B2 (pt)
KR (1) KR102579519B1 (pt)
CN (1) CN107592972B (pt)
AU (1) AU2016261848A1 (pt)
BR (1) BR112017024275A2 (pt)
TW (1) TWI762443B (pt)
WO (1) WO2016183216A1 (pt)

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AU2016261848A1 (en) 2017-11-02
KR20180004147A (ko) 2018-01-10
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