BR112021025461A2 - Derivação de candidatos de predição de vetor de movimento temporal em código de vídeo - Google Patents

Derivação de candidatos de predição de vetor de movimento temporal em código de vídeo

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Publication number
BR112021025461A2
BR112021025461A2 BR112021025461A BR112021025461A BR112021025461A2 BR 112021025461 A2 BR112021025461 A2 BR 112021025461A2 BR 112021025461 A BR112021025461 A BR 112021025461A BR 112021025461 A BR112021025461 A BR 112021025461A BR 112021025461 A2 BR112021025461 A2 BR 112021025461A2
Authority
BR
Brazil
Prior art keywords
motion vector
derivation
vector prediction
temporal motion
video bitstream
Prior art date
Application number
BR112021025461A
Other languages
English (en)
Inventor
Dmytro Rusanovskyy
Marta Karczewicz
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 BR112021025461A2 publication Critical patent/BR112021025461A2/pt

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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
    • H04N19/50—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
    • 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
    • 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
    • H04N19/17—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
    • H04N19/10—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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/44—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
    • 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

Landscapes

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

Abstract

derivação de candidatos de predição de vetor de movimento temporal em código de vídeo. a presente invenção refere-se a um método exemplar inclui codificar, por um codificador de vídeo e por meio de um fluxo de bits de vídeo codificado, um elemento de sintaxe que especifica se o fluxo de bits de vídeo codificado inclui uma pluralidade de elementos de sintaxe que especificam parâmetros de um processo de derivação de candidato de predição de vetor de movimento temporal (tmvp); onde o elemento de sintaxe especifica que o fluxo de bits de vídeo codificado inclui a pluralidade de elementos de sintaxe: codificar, pelo codificador de vídeo, a pluralidade de elementos de sintaxe por meio do fluxo de bits de vídeo codificado; e derivar, pelo codificador de vídeo e com base em parâmetros especificados pela pluralidade de elementos de sintaxe, um candidato de tmvp para um bloco atual de uma imagem atual de dados de vídeo; gerar, para o bloco atual, uma lista de candidatos de vetor de movimento, a lista incluindo o candidato de tmvp derivado; e predizer, com base na lista de candidatos de vetor de movimento, o bloco atual.
BR112021025461A 2019-06-25 2020-06-24 Derivação de candidatos de predição de vetor de movimento temporal em código de vídeo BR112021025461A2 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962866536P 2019-06-25 2019-06-25
US201962867021P 2019-06-26 2019-06-26
US201962868462P 2019-06-28 2019-06-28
US16/909,856 US11601666B2 (en) 2019-06-25 2020-06-23 Derivation of temporal motion vector prediction candidates in video coding
PCT/US2020/039311 WO2020263940A1 (en) 2019-06-25 2020-06-24 Derivation of temporal motion vector prediction candidates in video coding

Publications (1)

Publication Number Publication Date
BR112021025461A2 true BR112021025461A2 (pt) 2022-02-01

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BR112021025461A BR112021025461A2 (pt) 2019-06-25 2020-06-24 Derivação de candidatos de predição de vetor de movimento temporal em código de vídeo

Country Status (7)

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US (1) US11601666B2 (pt)
EP (1) EP3991404A1 (pt)
JP (1) JP2022539005A (pt)
KR (1) KR20220024128A (pt)
CN (1) CN114009039A (pt)
BR (1) BR112021025461A2 (pt)
WO (1) WO2020263940A1 (pt)

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US20240080451A1 (en) * 2022-09-02 2024-03-07 Tencent America LLC Systems and methods for temporal motion vector prediction candidate derivation

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Also Published As

Publication number Publication date
US20200413081A1 (en) 2020-12-31
WO2020263940A1 (en) 2020-12-30
CN114009039A (zh) 2022-02-01
KR20220024128A (ko) 2022-03-03
US11601666B2 (en) 2023-03-07
EP3991404A1 (en) 2022-05-04
JP2022539005A (ja) 2022-09-07

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