BR112022005469A2 - Codificador, decodificador e métodos correspondentes - Google Patents

Codificador, decodificador e métodos correspondentes

Info

Publication number
BR112022005469A2
BR112022005469A2 BR112022005469A BR112022005469A BR112022005469A2 BR 112022005469 A2 BR112022005469 A2 BR 112022005469A2 BR 112022005469 A BR112022005469 A BR 112022005469A BR 112022005469 A BR112022005469 A BR 112022005469A BR 112022005469 A2 BR112022005469 A2 BR 112022005469A2
Authority
BR
Brazil
Prior art keywords
sps
syntax element
enabled
level syntax
preset value
Prior art date
Application number
BR112022005469A
Other languages
English (en)
Inventor
Haitao Yang
Xiang Ma
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112022005469A2 publication Critical patent/BR112022005469A2/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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/31—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the temporal domain
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/33—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the spatial domain
    • 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
    • H04N19/157—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
    • H04N19/134—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
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
    • H04N19/172—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
    • H04N19/187—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 scalable video layer
    • 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
    • H04N19/70—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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability

Landscapes

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

Abstract

codificador, decodificador e métodos correspondentes. a presente invenção refere-se a um método de decodificar um fluxo de bits de vídeo codificado, o método compreendendo: obter um elemento de sintaxe de nível de conjunto de parâmetros de sequência (sps) do fluxo de bits, em que, que o elemento de sintaxe de nível de sps igual a um valor pré-ajustado especifica que nenhum conjunto de parâmetros de vídeo (vps) é referido por um sps, e o elemento de sintaxe de nível de sps maior do que o valor pré-ajustado especifica que o sps refere a um vps; obter, como o elemento de sintaxe de nível de sps é maior do que o valor pré-ajustado, um elemento de sintaxe habilitado em intercamadas que especifica se uma ou mais imagens de referência intercamadas (ilrps) são habilitadas para serem utilizadas para a interpredição de uma ou mais imagens codificadas; e predizer uma ou mais imagens codificadas com base no valor do elemento de sintaxe habilitado em intercamadas.
BR112022005469A 2019-09-24 2020-09-24 Codificador, decodificador e métodos correspondentes BR112022005469A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2019107594 2019-09-24
PCT/CN2020/117557 WO2021057869A1 (en) 2019-09-24 2020-09-24 An encoder, a decoder and corresponding methods

Publications (1)

Publication Number Publication Date
BR112022005469A2 true BR112022005469A2 (pt) 2022-06-14

Family

ID=75166778

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022005469A BR112022005469A2 (pt) 2019-09-24 2020-09-24 Codificador, decodificador e métodos correspondentes

Country Status (10)

Country Link
US (2) US11412215B2 (pt)
EP (1) EP4026337A4 (pt)
JP (1) JP7483869B2 (pt)
KR (1) KR20220065040A (pt)
CN (2) CN114424571A (pt)
AU (1) AU2020352952A1 (pt)
BR (1) BR112022005469A2 (pt)
CA (1) CA3152464C (pt)
MX (1) MX2022003556A (pt)
WO (1) WO2021057869A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112022006429A2 (pt) 2019-10-07 2022-06-28 Huawei Tech Co Ltd Restrições de entrada de imagem de referência com base em tamanho de dpb
WO2021134019A1 (en) 2019-12-26 2021-07-01 Bytedance Inc. Constraints on coding of layered video
KR20220115958A (ko) 2019-12-26 2022-08-19 바이트댄스 아이엔씨 코딩된 비트스트림들에서의 비디오 계층들의 시그널링에 대한 제약들
WO2021134055A1 (en) 2019-12-27 2021-07-01 Bytedance Inc. Subpicture signaling in parameter sets
CN115004669A (zh) * 2020-01-09 2022-09-02 字节跳动有限公司 不同sei消息的解码顺序

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US9451252B2 (en) 2012-01-14 2016-09-20 Qualcomm Incorporated Coding parameter sets and NAL unit headers for video coding
US9319679B2 (en) * 2012-06-07 2016-04-19 Qualcomm Incorporated Signaling data for long term reference pictures for video coding
US9325990B2 (en) * 2012-07-09 2016-04-26 Qualcomm Incorporated Temporal motion vector prediction in video coding extensions
US9426462B2 (en) 2012-09-21 2016-08-23 Qualcomm Incorporated Indication and activation of parameter sets for video coding
US9161039B2 (en) 2012-09-24 2015-10-13 Qualcomm Incorporated Bitstream properties in video coding
US9357211B2 (en) * 2012-12-28 2016-05-31 Qualcomm Incorporated Device and method for scalable and multiview/3D coding of video information
KR20140129624A (ko) * 2013-04-30 2014-11-07 주식회사 칩스앤미디어 동영상 처리 방법 및 장치
US10003815B2 (en) 2013-06-03 2018-06-19 Qualcomm Incorporated Hypothetical reference decoder model and conformance for cross-layer random access skipped pictures
WO2015004924A1 (en) * 2013-07-10 2015-01-15 Sharp Kabushiki Kaisha Scaling list signaling and parameter sets activation
GB2516424A (en) * 2013-07-15 2015-01-28 Nokia Corp A method, an apparatus and a computer program product for video coding and decoding
US9894369B2 (en) * 2013-07-30 2018-02-13 Kt Corporation Image encoding and decoding method supporting plurality of layers and apparatus using same
US10187662B2 (en) 2013-10-13 2019-01-22 Sharp Kabushiki Kaisha Signaling parameters in video parameter set extension and decoder picture buffer operation
US10091519B2 (en) * 2013-10-14 2018-10-02 Electronics And Telecommunications Research Institute Multilayer-based image encoding/decoding method and apparatus
US20180115787A1 (en) 2015-04-12 2018-04-26 Lg Electronics Inc. Method for encoding and decoding video signal, and apparatus therefor
US10779006B2 (en) * 2018-02-14 2020-09-15 Qualcomm Incorporated Signaling 360-degree video information
EP4128756A4 (en) * 2020-03-26 2024-04-24 Alibaba Group Holding Ltd METHODS OF ENCODING OR DECODING A SET OF VIDEO PARAMETERS OR A SET OF SEQUENCE PARAMETERS

Also Published As

Publication number Publication date
WO2021057869A1 (en) 2021-04-01
CN115209153B (zh) 2023-06-06
MX2022003556A (es) 2022-06-14
CA3152464A1 (en) 2021-04-01
CA3152464C (en) 2024-05-14
US20220030222A1 (en) 2022-01-27
AU2020352952A1 (en) 2022-04-21
EP4026337A1 (en) 2022-07-13
US11968357B2 (en) 2024-04-23
CN114424571A (zh) 2022-04-29
JP2022550322A (ja) 2022-12-01
EP4026337A4 (en) 2022-10-26
KR20220065040A (ko) 2022-05-19
JP7483869B2 (ja) 2024-05-15
US11412215B2 (en) 2022-08-09
CN115209153A (zh) 2022-10-18
US20220368892A1 (en) 2022-11-17

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B154 Notification of filing of divisional application [chapter 15.50 patent gazette]

Free format text: O PEDIDO FOI DIVIDIDO NO BR122023005459-8 PROTOCOLO 870230024609 EM 23/03/2023 18:06.

B09A Decision: intention to grant [chapter 9.1 patent gazette]