BR122020002121B8 - Método e aparelho para gerar candidatos a preditores de vetor de movimento - Google Patents

Método e aparelho para gerar candidatos a preditores de vetor de movimento

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Publication number
BR122020002121B8
BR122020002121B8 BR122020002121A BR122020002121A BR122020002121B8 BR 122020002121 B8 BR122020002121 B8 BR 122020002121B8 BR 122020002121 A BR122020002121 A BR 122020002121A BR 122020002121 A BR122020002121 A BR 122020002121A BR 122020002121 B8 BR122020002121 B8 BR 122020002121B8
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BR
Brazil
Prior art keywords
motion vector
block
predictors
temporal
vector predictors
Prior art date
Application number
BR122020002121A
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English (en)
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BR122020002121B1 (pt
BR122020002121A2 (pt
Inventor
Laroche Guillaume
Onno Patrice
Original Assignee
Canon Kk
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Application filed by Canon Kk filed Critical Canon Kk
Publication of BR122020002121A2 publication Critical patent/BR122020002121A2/pt
Publication of BR122020002121B1 publication Critical patent/BR122020002121B1/pt
Publication of BR122020002121B8 publication Critical patent/BR122020002121B8/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
    • 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
    • H04N19/521—Processing of motion vectors for estimating the reliability of the determined motion vectors or motion vector field, e.g. for smoothing the motion vector field or for correcting 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
    • H04N19/10—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
    • H04N19/134—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
    • 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
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    • 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
    • H04N19/43—Hardware specially adapted for motion estimation or compensation
    • H—ELECTRICITY
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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
    • 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
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    • 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
    • H04N19/593—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
    • H04N19/102—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
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh

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

Abstract

Um preditor de vetor de movimento temporal é incluível, juntamente com um ou mais preditores de vetor de movimento espacial, em um conjunto de preditores de vetor de movimento para um bloco a codificar de um quadro atual. Um método de determinar o preditor de vetor de movimento temporal compreende selecionar como o preditor temporal um vetor de movimento entre vetores de movimento em um bloco de referência de um quadro de referência diferente do quadro atual. O bloco de referência é um bloco do quadro de referência colocado com o bloco a codificar ou um bloco do quadro de referência vizinho ao bloco colocado. A seleção se baseia em um critério de diversidade para obter diversidade entre os preditores do conjunto. Isso pode reduzir as exigências de memória de vetor de movimento com nenhuma penalidade ou nenhuma penalidade significativa de eficiência de codificação adicional. Alternativamente, mesmo se a memória de vetor de movimento não for reduzida em tamanho, aperfeiçoamentos em eficiência de codificação podem ser obtidas.
BR122020002121A 2011-03-09 2012-03-08 Método e aparelho para gerar candidatos a preditores de vetor de movimento BR122020002121B8 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB1104033.4A GB2488815C (en) 2011-03-09 2011-03-09 Video decoding
GB1104033.4 2011-03-09
PCT/EP2012/001041 WO2012119776A1 (en) 2011-03-09 2012-03-08 Video encoding and decoding
BR112013022774-5 2012-03-08
BR112013022774-5A BR112013022774B1 (pt) 2011-03-09 2012-03-08 Método e aparelho de decodificação de um fluxo de bits e meio legível por computador

Publications (3)

Publication Number Publication Date
BR122020002121A2 BR122020002121A2 (pt) 2020-12-01
BR122020002121B1 BR122020002121B1 (pt) 2022-12-20
BR122020002121B8 true BR122020002121B8 (pt) 2023-01-10

Family

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Family Applications (5)

Application Number Title Priority Date Filing Date
BR122020002123-3A BR122020002123B1 (pt) 2011-03-09 2012-03-08 Aparelho e método de gerar candidatos de preditores de vetor de movimento
BR122020002120-9A BR122020002120B1 (pt) 2011-03-09 2012-03-08 Método e aparelho para gerar preditores de vetor de movimento
BR122020002133-0A BR122020002133B1 (pt) 2011-03-09 2012-03-08 Aparelho e método de gerar candidatos de preditores de vetor de movimento
BR112013022774-5A BR112013022774B1 (pt) 2011-03-09 2012-03-08 Método e aparelho de decodificação de um fluxo de bits e meio legível por computador
BR122020002121A BR122020002121B8 (pt) 2011-03-09 2012-03-08 Método e aparelho para gerar candidatos a preditores de vetor de movimento

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Application Number Title Priority Date Filing Date
BR122020002123-3A BR122020002123B1 (pt) 2011-03-09 2012-03-08 Aparelho e método de gerar candidatos de preditores de vetor de movimento
BR122020002120-9A BR122020002120B1 (pt) 2011-03-09 2012-03-08 Método e aparelho para gerar preditores de vetor de movimento
BR122020002133-0A BR122020002133B1 (pt) 2011-03-09 2012-03-08 Aparelho e método de gerar candidatos de preditores de vetor de movimento
BR112013022774-5A BR112013022774B1 (pt) 2011-03-09 2012-03-08 Método e aparelho de decodificação de um fluxo de bits e meio legível por computador

Country Status (13)

Country Link
US (5) US8824555B2 (pt)
EP (5) EP3099070B1 (pt)
KR (5) KR102090437B1 (pt)
CN (6) CN107105232B (pt)
BR (5) BR122020002123B1 (pt)
DK (1) DK2684362T3 (pt)
ES (5) ES2710782T3 (pt)
GB (3) GB2501836B (pt)
HU (4) HUE046353T2 (pt)
PL (4) PL3422713T3 (pt)
RU (5) RU2564252C2 (pt)
TR (1) TR201820537T4 (pt)
WO (1) WO2012119776A1 (pt)

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