BR112016015854A8 - meio legível por computador, dispositivo de computação e método para seleção da precisão de vetor de movimento - Google Patents

meio legível por computador, dispositivo de computação e método para seleção da precisão de vetor de movimento Download PDF

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BR112016015854A8
BR112016015854A8 BR112016015854A BR112016015854A BR112016015854A8 BR 112016015854 A8 BR112016015854 A8 BR 112016015854A8 BR 112016015854 A BR112016015854 A BR 112016015854A BR 112016015854 A BR112016015854 A BR 112016015854A BR 112016015854 A8 BR112016015854 A8 BR 112016015854A8
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precision
video
motion vector
video encoder
accuracy
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BR112016015854A
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BR112016015854A2 (pt
BR112016015854B1 (pt
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Lin Chih-Lung
j sullivan Gary
Lee Ming-Chieh
Zhou You
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Microsoft Technology Licensing Llc
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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
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal 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
    • H04N19/103—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
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
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    • 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
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    • H04N19/142—Detection of scene cut or scene change
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • H—ELECTRICITY
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    • 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
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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
    • H04N19/17—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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of blocks
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    • 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
    • H04N19/177—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 group of pictures [GOP]
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    • 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
    • H04N19/179—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 scene or a shot
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    • 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
    • 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
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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
    • H04N19/521—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
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    • 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

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

Abstract

a presente invenção refere-se a abordagens para seleção de precisão de vetor de movimento ("mv") durante codificação de vídeo. estas abordagens podem facilitar a compressão que é eficaz em termos do desempenho da taxa de distorção e/ou eficiência computacional. por exemplo, um codificador de vídeo determina uma precisão de mv para uma unidade de vídeo dentre várias precisões de mv, que inclui uma ou mais precisões de mv de amostra fracionárias e precisão de mv de amostra inteira. o codificador de vídeo pode identificar um conjunto de valores de mv tendo uma precisão de mv de amostra fracionária, depois selecionar a precisão de mv para a unidade com base pelo menos em parte na prevalência dos valores de mv (dentro do conjunto) tendo uma parte fracionária de zero. ou, o codificador de vídeo pode realizar análise de taxa de distorção, em que a análise de taxa de distorção é influenciada na direção da precisão de mv de amostra inteira. ou, o codificador de vídeo pode coletar informação sobre o vídeo e selecionar a precisão de mv para a unidade com base pelo menos em parte na informação coletada.
BR112016015854-7A 2014-01-08 2014-12-19 Método em um dispositivo de computação com um codificador de vídeo, dispositivo de computação e meio legível por computador para seleção da precisão de vetor de movimento BR112016015854B1 (pt)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201461925090P 2014-01-08 2014-01-08
US61/925,090 2014-01-08
US201461934574P 2014-01-31 2014-01-31
US61/934,574 2014-01-31
US14/513,132 2014-10-13
US14/513,132 US9749642B2 (en) 2014-01-08 2014-10-13 Selection of motion vector precision
PCT/US2014/071332 WO2015105662A1 (en) 2014-01-08 2014-12-19 Selection of motion vector precision

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BR112016015854A2 BR112016015854A2 (pt) 2017-08-08
BR112016015854A8 true BR112016015854A8 (pt) 2020-06-09
BR112016015854B1 BR112016015854B1 (pt) 2023-03-14

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BR112016015854-7A BR112016015854B1 (pt) 2014-01-08 2014-12-19 Método em um dispositivo de computação com um codificador de vídeo, dispositivo de computação e meio legível por computador para seleção da precisão de vetor de movimento
BR122022001631-6A BR122022001631B1 (pt) 2014-01-08 2014-12-19 Método, sistema de computador, e dispositivo de memória ou armazenamento não volátil

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US (8) US9749642B2 (pt)
EP (1) EP3075154B1 (pt)
JP (1) JP6498679B2 (pt)
KR (5) KR102570202B1 (pt)
CN (4) CN110177274B (pt)
AU (1) AU2014376190B2 (pt)
BR (2) BR112016015854B1 (pt)
CA (2) CA3118603A1 (pt)
MX (1) MX359698B (pt)
RU (1) RU2682859C1 (pt)
WO (1) WO2015105662A1 (pt)

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