BR112022012046A2 - 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
BR112022012046A2
BR112022012046A2 BR112022012046A BR112022012046A BR112022012046A2 BR 112022012046 A2 BR112022012046 A2 BR 112022012046A2 BR 112022012046 A BR112022012046 A BR 112022012046A BR 112022012046 A BR112022012046 A BR 112022012046A BR 112022012046 A2 BR112022012046 A2 BR 112022012046A2
Authority
BR
Brazil
Prior art keywords
decoding
bit stream
video encoding
level syntax
syntax elements
Prior art date
Application number
BR112022012046A
Other languages
English (en)
Inventor
Laroche Guillaume
Onno Patrice
Ouedraogo Naël
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 BR112022012046A2 publication Critical patent/BR112022012046A2/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
    • H04N19/102—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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/124—Quantisation
    • 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]
    • 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
    • H04N19/184—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
    • H04N19/42—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
    • H04N19/423—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 characterised by memory arrangements
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

Landscapes

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

Abstract

SINTAXE DE ALTO NÍVEL PARA CODIFICAÇÃO E DECODIFICAÇÃO DE VÍDEO. A revelação refere-se a um método de decodificar dados de vídeo a partir de um fluxo de bits, o fluxo de bits compreendendo dados de vídeo correspondendo a múltiplas fatias, em que o fluxo de bits compreende um cabeçalho compreendendo elementos de sintaxe a serem utilizados ao decodificar uma ou mais fatias, em que a decodificação compreende analisar o cabeçalho de imagem, analisar pelo menos um elemento de sintaxe relacionado a ID de APS antes dos elementos de sintaxe referentes às ferramentas de decodificação; e decodificar o referido fluxo de bits utilizando os referidos elementos de sintaxe. São revelados também métodos de decodificação, dispositivos e programas de computador relacionados.
BR112022012046A 2019-12-20 2020-12-18 Sintaxe de alto nível para codificação e decodificação de vídeo BR112022012046A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1919035.4A GB2590636B (en) 2019-12-20 2019-12-20 High level syntax for video coding and decoding
PCT/EP2020/087286 WO2021123357A1 (en) 2019-12-20 2020-12-18 High level syntax for video coding and decoding

Publications (1)

Publication Number Publication Date
BR112022012046A2 true BR112022012046A2 (pt) 2022-08-30

Family

ID=69322967

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022012046A BR112022012046A2 (pt) 2019-12-20 2020-12-18 Sintaxe de alto nível para codificação e decodificação de vídeo

Country Status (9)

Country Link
US (1) US20240040154A1 (pt)
EP (1) EP4078975A1 (pt)
JP (2) JP7403633B2 (pt)
KR (1) KR20220110841A (pt)
CN (1) CN115136605A (pt)
BR (1) BR112022012046A2 (pt)
GB (1) GB2590636B (pt)
TW (1) TWI809336B (pt)
WO (1) WO2021123357A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020224525A1 (en) * 2019-05-03 2020-11-12 Mediatek Inc. Methods and apparatuses of syntax signaling and referencing constraint in video coding system
JP7395005B2 (ja) 2020-02-24 2023-12-08 バイトダンス インコーポレイテッド サブピクチャの高さの導出
WO2021178501A1 (en) 2020-03-03 2021-09-10 Bytedance Inc. Controlling a scaling process using slice header signaling
WO2021190956A1 (en) * 2020-03-26 2021-09-30 Nokia Technologies Oy Luma mapping with chroma scaling for gradual decoding refresh
WO2021201515A1 (ko) * 2020-04-02 2021-10-07 엘지전자 주식회사 Hls를 시그널링하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 컴퓨터 판독 가능한 기록 매체
MX2022012643A (es) * 2020-04-08 2023-01-11 Nokia Technologies Oy Mapeado de luminancia con escalado de crominancia para actualización de decodificación gradual.
WO2024015639A1 (en) * 2022-07-15 2024-01-18 Bytedance Inc. Neural network-based image and video compression method with parallel processing
WO2024015638A2 (en) * 2022-07-15 2024-01-18 Bytedance Inc. A neural network-based image and video compression method with conditional coding
WO2024020053A1 (en) * 2022-07-18 2024-01-25 Bytedance Inc. Neural network-based adaptive image and video compression method
WO2024112035A1 (ko) * 2022-11-24 2024-05-30 삼성전자 주식회사 전자 장치 및 전자 장치의 데이터 압축 방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9277228B2 (en) * 2011-07-18 2016-03-01 Qualcomm Incorporated Adaptation parameter sets for video coding
US9538200B2 (en) * 2012-01-19 2017-01-03 Qualcomm Incorporated Signaling of deblocking filter parameters in video coding
GB2501125B (en) * 2012-04-13 2015-08-19 Canon Kk Method and device for providing adaptation parameters to a decoder
US9813705B2 (en) * 2012-04-26 2017-11-07 Qualcomm Incorporated Parameter set coding
KR102707834B1 (ko) * 2019-10-29 2024-09-19 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 루마 차이를 이용한 크로스 컴포넌트 적응적 루프 필터

Also Published As

Publication number Publication date
TWI809336B (zh) 2023-07-21
JP2023504965A (ja) 2023-02-08
GB2590636A (en) 2021-07-07
JP7403633B2 (ja) 2023-12-22
JP2024026338A (ja) 2024-02-28
CN115136605A (zh) 2022-09-30
TW202126049A (zh) 2021-07-01
US20240040154A1 (en) 2024-02-01
EP4078975A1 (en) 2022-10-26
WO2021123357A1 (en) 2021-06-24
GB2590636B (en) 2024-01-10
GB201919035D0 (en) 2020-02-05
KR20220110841A (ko) 2022-08-09

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