BR112022013844A2 - Método e dispositivo para codificação de imagem/vídeo baseados em tabela ponderada de predição - Google Patents

Método e dispositivo para codificação de imagem/vídeo baseados em tabela ponderada de predição

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Publication number
BR112022013844A2
BR112022013844A2 BR112022013844A BR112022013844A BR112022013844A2 BR 112022013844 A2 BR112022013844 A2 BR 112022013844A2 BR 112022013844 A BR112022013844 A BR 112022013844A BR 112022013844 A BR112022013844 A BR 112022013844A BR 112022013844 A2 BR112022013844 A2 BR 112022013844A2
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BR
Brazil
Prior art keywords
weighted prediction
prediction
flag
figuration
weighted
Prior art date
Application number
BR112022013844A
Other languages
English (en)
Inventor
Paluri Seethal
Hendry Hendry
Zhao Jie
Kim Seunghwan
Original Assignee
Lg Electronics 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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of BR112022013844A2 publication Critical patent/BR112022013844A2/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
    • H04N19/46—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
    • H04N19/70—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
    • H04N19/103—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
    • H04N19/102—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • 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
    • H04N19/174—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
    • 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
    • H04N19/50—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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures

Landscapes

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

Abstract

MÉTODO E DISPOSITIVO PARA CODIFICAÇÃO DE IMAGEM/VÍDEO BASEADOS EM TABELA PONDERADA DE PREDIÇÃO. Trata-se de um método através do qual um dispositivo de decodificação de vídeo decodifica um vídeo, de acordo com o presente documento, que pode compreender as etapas de: analisar, a partir de um conjunto de parâmetros de figuração de um fluxo de bits, um primeiro sinalizador relacionado a se uma predição ponderada é aplicada a fatias referentes ao conjunto de parâmetros de figuração; analisar, a partir do conjunto de parâmetros de figuração, um segundo sinalizador relacionado a se informações sobre a predição ponderada estão presentes em um cabeçalho de figuração do fluxo de bits ou estão presentes em um cabeçalho de fatia do fluxo de bits com base no primeiro sinalizador; analisar uma sintaxe de tabela ponderada de predição a partir do cabeçalho de figuração ou do cabeçalho de fatia com base no primeiro sinalizador e no segundo sinalizador; gerar amostras de predição para o bloco atual realizando-se uma predição ponderada para o bloco atual em uma figuração atual com base nos elementos de sintaxe na sintaxe de tabela ponderada de predição; e gerar amostras reconstruídas com base nas amostras de predição.
BR112022013844A 2020-01-13 2021-01-13 Método e dispositivo para codificação de imagem/vídeo baseados em tabela ponderada de predição BR112022013844A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202062960682P 2020-01-13 2020-01-13
PCT/KR2021/000466 WO2021145668A1 (ko) 2020-01-13 2021-01-13 예측 가중 테이블 기반 영상/비디오 코딩 방법 및 장치

Publications (1)

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BR112022013844A2 true BR112022013844A2 (pt) 2022-09-13

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Country Link
US (2) US11895314B2 (pt)
EP (1) EP4093029A4 (pt)
JP (1) JP2023509525A (pt)
KR (1) KR20220100716A (pt)
CN (1) CN115244938A (pt)
AU (1) AU2021207558A1 (pt)
BR (1) BR112022013844A2 (pt)
CA (1) CA3167874A1 (pt)
MX (1) MX2022008460A (pt)
WO (1) WO2021145668A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4080886A4 (en) * 2019-12-20 2024-02-21 Lg Electronics Inc PREDICTION WEIGHTED TABLE BASED IMAGE/VIDEO CODING METHOD AND APPARATUS
JP7475908B2 (ja) 2020-03-17 2024-04-30 シャープ株式会社 予測画像生成装置、動画像復号装置及び動画像符号化装置
US11470358B2 (en) * 2020-04-02 2022-10-11 Sharp Kabushiki Kaisha Systems and methods for signaling scaling window information in video coding

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RU2663341C2 (ru) * 2012-11-30 2018-08-03 Сони Корпорейшн Устройство обработки изображений и способ
CA2942903A1 (en) * 2014-03-16 2015-09-24 Vid Scale, Inc. Method and apparatus for the signaling of lossless video coding
KR20180008445A (ko) * 2015-06-10 2018-01-24 삼성전자주식회사 적응적 가중치 예측을 위한 신택스 시그널링을 이용하여 영상을 부호화 또는 복호화하는 방법 및 장치
KR20190114765A (ko) * 2018-03-30 2019-10-10 경희대학교 산학협력단 영상 부호화/복호화 방법 및 장치
CN112740704B (zh) * 2018-09-21 2024-04-16 夏普株式会社 图像解码装置以及图像编码装置
EP3941061A4 (en) * 2019-03-15 2022-05-04 Lg Electronics Inc. BDOF-BASED INTERPREDITION METHOD AND DEVICE
US11184607B2 (en) * 2019-06-13 2021-11-23 Qualcomm Incorporated Same picture order count (POC) numbering for scalability support
KR20220098005A (ko) * 2019-12-20 2022-07-08 엘지전자 주식회사 가중된 예측에 기반한 영상/비디오 코딩 방법 및 장치
EP4080886A4 (en) * 2019-12-20 2024-02-21 Lg Electronics Inc PREDICTION WEIGHTED TABLE BASED IMAGE/VIDEO CODING METHOD AND APPARATUS
JP2023510858A (ja) * 2020-01-12 2023-03-15 ホアウェイ・テクノロジーズ・カンパニー・リミテッド 重み付き予測を非矩形マージモードと調和させる方法および装置
KR20220101719A (ko) * 2020-01-13 2022-07-19 엘지전자 주식회사 영상/비디오 코딩 시스템에서 인터 예측 방법 및 장치

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Publication number Publication date
EP4093029A1 (en) 2022-11-23
US20240129510A1 (en) 2024-04-18
EP4093029A4 (en) 2023-12-27
US20220353523A1 (en) 2022-11-03
KR20220100716A (ko) 2022-07-15
CA3167874A1 (en) 2021-07-22
JP2023509525A (ja) 2023-03-08
CN115244938A (zh) 2022-10-25
WO2021145668A1 (ko) 2021-07-22
AU2021207558A1 (en) 2022-09-08
MX2022008460A (es) 2022-10-18
US11895314B2 (en) 2024-02-06

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