BR112022018757A2 - Sintaxe de alto nível para codificação e decodificação de vídeo - Google Patents

Sintaxe de alto nível para codificação e decodificação de vídeo

Info

Publication number
BR112022018757A2
BR112022018757A2 BR112022018757A BR112022018757A BR112022018757A2 BR 112022018757 A2 BR112022018757 A2 BR 112022018757A2 BR 112022018757 A BR112022018757 A BR 112022018757A BR 112022018757 A BR112022018757 A BR 112022018757A BR 112022018757 A2 BR112022018757 A2 BR 112022018757A2
Authority
BR
Brazil
Prior art keywords
decoding
syntax elements
slice
video encoding
level syntax
Prior art date
Application number
BR112022018757A
Other languages
English (en)
Inventor
Laroche Guillaume
Ouedraogo Naël
Onno Patrice
Original Assignee
Canon Kk
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 Canon Kk filed Critical Canon Kk
Publication of BR112022018757A2 publication Critical patent/BR112022018757A2/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
    • H04N19/70—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
    • H04N19/134—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
    • H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
    • 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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/186—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 colour or a chrominance component
    • 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

Landscapes

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

Abstract

SINTAXE DE ALTO NÍVEL PARA CODIFICAÇÃO E DECODIFICAÇÃO DE VÍDEO. A presente invenção refere-se a um método para decodificar dados de vídeo a partir de um fluxo de bits, o fluxo de bits compreendendo dados de vídeo correspondentes a uma ou mais fatias. O fluxo de bits compreende um cabeçalho de imagem compreendendo elementos de sintaxe a serem usados quando decodificando uma ou mais fatias, e um cabeçalho de fatia compreendendo elementos de sintaxe a serem usados quando decodificando uma fatia, a decodificação compreendendo: analisar os elementos de sintaxe. O método inclui omitir a análise de um ou mais elementos de sintaxe para uma fatia relativa ao uso ou à disponibilidade de uma ferramenta ou parâmetro de decodificação para essa fatia se um ou mais elementos de sintaxe que forem analisados indicam que a imagem contém apenas uma fatia; e decodificar o dito fluxo de bits usando os ditos elementos de sintaxe.
BR112022018757A 2020-03-20 2021-03-17 Sintaxe de alto nível para codificação e decodificação de vídeo BR112022018757A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2004095.2A GB2593222A (en) 2020-03-20 2020-03-20 High level syntax for video coding and decoding
PCT/EP2021/056870 WO2021185929A2 (en) 2020-03-20 2021-03-17 High level syntax for video coding and decoding

Publications (1)

Publication Number Publication Date
BR112022018757A2 true BR112022018757A2 (pt) 2022-11-01

Family

ID=70546559

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022018757A BR112022018757A2 (pt) 2020-03-20 2021-03-17 Sintaxe de alto nível para codificação e decodificação de vídeo

Country Status (9)

Country Link
US (1) US20230115242A1 (pt)
EP (1) EP4122201A2 (pt)
JP (2) JP7434580B2 (pt)
KR (1) KR20220153071A (pt)
CN (1) CN115315949A (pt)
BR (1) BR112022018757A2 (pt)
GB (1) GB2593222A (pt)
TW (1) TWI827919B (pt)
WO (1) WO2021185929A2 (pt)

Families Citing this family (4)

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CN116405699A (zh) * 2020-03-31 2023-07-07 北京达佳互联信息技术有限公司 用于在视频编解码中用信号通知语法元素的方法和装置
BR112022019661A2 (pt) * 2020-03-31 2022-11-29 Sharp Kk Aparelho de decodificação de vídeo, aparelho de codificação de vídeo, método de decodificação de vídeo e método de codificação de vídeo
US11659207B2 (en) * 2020-06-08 2023-05-23 Qualcomm Incorporated General constraints of syntax elements for video coding
WO2023104065A1 (en) * 2021-12-07 2023-06-15 Beijing Bytedance Network Technology Co., Ltd. Method, apparatus, and medium for video processing

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US8619874B2 (en) * 2007-04-13 2013-12-31 Apple Inc. Method and system for video encoding and decoding
US8265144B2 (en) * 2007-06-30 2012-09-11 Microsoft Corporation Innovations in video decoder implementations
US8254455B2 (en) * 2007-06-30 2012-08-28 Microsoft Corporation Computing collocated macroblock information for direct mode macroblocks
US9648325B2 (en) * 2007-06-30 2017-05-09 Microsoft Technology Licensing, Llc Video decoding implementations for a graphics processing unit
GB2488830B (en) * 2011-03-10 2015-07-29 Canon Kk Method and device for encoding image data and method and device for decoding image data
ES2571863T3 (es) * 2012-01-17 2016-05-27 ERICSSON TELEFON AB L M (publ) Gestión de listas de imágenes de referencia
GB2509901A (en) * 2013-01-04 2014-07-23 Canon Kk Image coding methods based on suitability of base layer (BL) prediction data, and most probable prediction modes (MPMs)
JP6572222B2 (ja) * 2014-01-07 2019-09-04 キヤノン株式会社 メディアファイルの生成方法、生成装置、及びプログラム
JP6824034B2 (ja) * 2014-03-31 2021-02-03 ソニー株式会社 画像復号装置および方法
CN112438048A (zh) * 2018-07-16 2021-03-02 韩国电子通信研究院 用于对图像进行编码/解码的方法和设备以及存储比特流的记录介质
CN117294862A (zh) * 2018-10-05 2023-12-26 Lg电子株式会社 解码设备、编码设备、存储介质及数据发送设备
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WO2021145687A1 (ko) 2020-01-14 2021-07-22 엘지전자 주식회사 서브 픽처 및 픽처 헤더에 관한 정보를 시그널링하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법
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Also Published As

Publication number Publication date
US20230115242A1 (en) 2023-04-13
TWI827919B (zh) 2024-01-01
CN115315949A (zh) 2022-11-08
KR20220153071A (ko) 2022-11-17
EP4122201A2 (en) 2023-01-25
JP2024050804A (ja) 2024-04-10
WO2021185929A3 (en) 2022-01-27
JP2023516251A (ja) 2023-04-19
TW202137765A (zh) 2021-10-01
JP7434580B2 (ja) 2024-02-20
GB2593222A (en) 2021-09-22
WO2021185929A2 (en) 2021-09-23
GB202004095D0 (en) 2020-05-06

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B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11N Dismissal: publication cancelled [chapter 11.14 patent gazette]

Free format text: ANULADA A PUBLICACAO CODIGO 11.1 NA RPI NO 2777 DE 26/03/2024 POR TER SIDO INDEVIDA.