BR112019006756A2 - precisão de vetor de movimento adaptativo para codificação de vídeo - Google Patents

precisão de vetor de movimento adaptativo para codificação de vídeo

Info

Publication number
BR112019006756A2
BR112019006756A2 BR112019006756A BR112019006756A BR112019006756A2 BR 112019006756 A2 BR112019006756 A2 BR 112019006756A2 BR 112019006756 A BR112019006756 A BR 112019006756A BR 112019006756 A BR112019006756 A BR 112019006756A BR 112019006756 A2 BR112019006756 A2 BR 112019006756A2
Authority
BR
Brazil
Prior art keywords
mvd
video data
syntax elements
motion vector
video encoding
Prior art date
Application number
BR112019006756A
Other languages
English (en)
Inventor
Chen Jianle
Zhang Li
Karczewicz Marta
Chien Wei-Jung
Li Xiang
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 BR112019006756A2 publication Critical patent/BR112019006756A2/pt

Links

Classifications

    • 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
    • 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
    • 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
    • H04N19/50—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
    • H04N19/513—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
    • H04N19/50—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
    • H04N19/70—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
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]

Abstract

um método de decodificação de dados de vídeo, incluindo o recebimento de um bloco codificado de dados de vídeo que foi codificado utilizando um modo de interpredição, recepção de um ou mais elementos de sintaxe que indicam uma diferença de vetor de movimento (mvd) associado com o bloco codificado de dados de vídeo, determinando uma precisão de mvd atual, a partir de três ou mais soluções mvd, para o um ou mais elementos de sintaxe que indicam o mvd, em que as três ou mais equações mvd incluem uma precisão n-amostra mvd, onde n é um número inteiro que indica um número de amostras indicadas por cada palavra código sucessiva dos um ou mais elementos de sintaxe que indicam o mvd, e em que n é maior que 1, decodificação de um ou mais elementos de sintaxe que indicam o mvd utilizando a precisão de mvd atual determinada, e decodificar o bloco codificado de dados de vídeo utilizando o mvd decodificado.
BR112019006756A 2016-10-04 2017-10-04 precisão de vetor de movimento adaptativo para codificação de vídeo BR112019006756A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662404105P 2016-10-04 2016-10-04
US15/724,044 US10979732B2 (en) 2016-10-04 2017-10-03 Adaptive motion vector precision for video coding
PCT/US2017/055091 WO2018067672A1 (en) 2016-10-04 2017-10-04 Adaptive motion vector precision for video coding

Publications (1)

Publication Number Publication Date
BR112019006756A2 true BR112019006756A2 (pt) 2019-07-02

Family

ID=61759108

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112019006756A BR112019006756A2 (pt) 2016-10-04 2017-10-04 precisão de vetor de movimento adaptativo para codificação de vídeo

Country Status (9)

Country Link
US (1) US10979732B2 (pt)
EP (1) EP3523971A1 (pt)
JP (2) JP7077310B2 (pt)
KR (1) KR102621943B1 (pt)
CN (1) CN109792532B (pt)
BR (1) BR112019006756A2 (pt)
SG (1) SG11201901365QA (pt)
TW (1) TWI796308B (pt)
WO (1) WO2018067672A1 (pt)

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US20180098089A1 (en) 2018-04-05
TW201817238A (zh) 2018-05-01
CN109792532A (zh) 2019-05-21
WO2018067672A1 (en) 2018-04-12
TWI796308B (zh) 2023-03-21
JP7077310B2 (ja) 2022-05-30
KR20190055109A (ko) 2019-05-22
CN109792532B (zh) 2023-07-14
EP3523971A1 (en) 2019-08-14
US10979732B2 (en) 2021-04-13
JP2022122892A (ja) 2022-08-23
JP2019534626A (ja) 2019-11-28
SG11201901365QA (en) 2019-04-29
KR102621943B1 (ko) 2024-01-05
JP7438265B2 (ja) 2024-02-26

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