MX2022004193A - Un codificador, un decodificador y metodos correspondientes. - Google Patents

Un codificador, un decodificador y metodos correspondientes.

Info

Publication number
MX2022004193A
MX2022004193A MX2022004193A MX2022004193A MX2022004193A MX 2022004193 A MX2022004193 A MX 2022004193A MX 2022004193 A MX2022004193 A MX 2022004193A MX 2022004193 A MX2022004193 A MX 2022004193A MX 2022004193 A MX2022004193 A MX 2022004193A
Authority
MX
Mexico
Prior art keywords
layer
syntax element
coded video
video bitstream
picture
Prior art date
Application number
MX2022004193A
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 MX2022004193A publication Critical patent/MX2022004193A/es

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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • 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
    • 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
    • H04N19/184—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
    • H04N19/10—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
    • H04N19/30—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

Landscapes

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

Abstract

Se proporciona un método para decodificar un flujo de bits de video codificado, el método que comprende: obtener, del flujo de bits de video codificado, un primer elemento de sintaxis que especifica si la primera capa usa predicción intercapa; obtener, del flujo de bits de video codificado, uno o más segundos elementos de sintaxis relacionados con una o más segundas capas, cada segundo elemento de sintaxis especifica si una segunda capa es una capa de referencia directa para la primera capa; en donde al menos un segundo elemento de sintaxis del uno o más segundos elementos de sintaxis tiene un valor que especifica que una segunda capa es una capa de referencia directa para la primera capa, en caso de que el valor del primer elemento de sintaxis especifique que se permite que la primera capa use predicción intercapa; realizar predicción intercapa para una imagen de la primera capa al usar una imagen de la segunda capa relacionada con el por lo menos un segundo elemento de sintaxis como una imagen de referencia.
MX2022004193A 2019-10-07 2020-09-30 Un codificador, un decodificador y metodos correspondientes. MX2022004193A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962912046P 2019-10-07 2019-10-07
PCT/CN2020/119696 WO2021068854A1 (en) 2019-10-07 2020-09-30 An encoder, a decoder and corresponding methods

Publications (1)

Publication Number Publication Date
MX2022004193A true MX2022004193A (es) 2022-05-02

Family

ID=75437725

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022004193A MX2022004193A (es) 2019-10-07 2020-09-30 Un codificador, un decodificador y metodos correspondientes.

Country Status (9)

Country Link
US (1) US20220232260A1 (es)
EP (1) EP4032308A4 (es)
JP (2) JP7414976B2 (es)
KR (1) KR20220070533A (es)
CN (2) CN117915112A (es)
AU (1) AU2020362795A1 (es)
CA (1) CA3156854A1 (es)
MX (1) MX2022004193A (es)
WO (1) WO2021068854A1 (es)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
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JP2009512306A (ja) * 2005-10-11 2009-03-19 ノキア コーポレイション スケーラブルビデオコーディングのためのデコードされたピクチャーの効率的なバッファマネージメント
US7991236B2 (en) * 2006-10-16 2011-08-02 Nokia Corporation Discardable lower layer adaptations in scalable video coding
KR20130116782A (ko) 2012-04-16 2013-10-24 한국전자통신연구원 계층적 비디오 부호화에서의 계층정보 표현방식
US9716892B2 (en) * 2012-07-02 2017-07-25 Qualcomm Incorporated Video parameter set including session negotiation information
WO2014116047A1 (ko) 2013-01-23 2014-07-31 삼성전자 주식회사 비디오 부호화 방법 및 장치, 비디오 복호화 방법 및 장치
US9998735B2 (en) * 2013-04-01 2018-06-12 Qualcomm Incorporated Inter-layer reference picture restriction for high level syntax-only scalable video coding
EP2978221A4 (en) * 2013-04-05 2016-11-16 Samsung Electronics Co Ltd METHOD AND DEVICE FOR MULTI-LAYER VIDEO DECODING AND MULTI-LAYER VIDEO ENCODING METHOD AND DEVICE
US20140307803A1 (en) * 2013-04-08 2014-10-16 Qualcomm Incorporated Non-entropy encoded layer dependency information
US9813736B2 (en) * 2013-09-27 2017-11-07 Qualcomm Incorporated Inter-view dependency type in MV-HEVC
EP3057325A4 (en) 2013-10-08 2017-05-10 Sharp Kabushiki Kaisha Image decoding device, image coding device, and coded data
WO2015053598A1 (ko) * 2013-10-12 2015-04-16 삼성전자 주식회사 멀티 레이어 비디오 부호화 방법 및 장치, 멀티 레이어 비디오 복호화 방법 및 장치
WO2015101716A1 (en) * 2014-01-03 2015-07-09 Nokia Technologies Oy Parameter set coding
JP2017522792A (ja) * 2014-06-18 2017-08-10 シャープ株式会社 スライス・タイプおよびデコーダ適合性
US20160286226A1 (en) * 2015-03-24 2016-09-29 Nokia Technologies Oy Apparatus, a method and a computer program for video coding and decoding
US11184607B2 (en) * 2019-06-13 2021-11-23 Qualcomm Incorporated Same picture order count (POC) numbering for scalability support
US11418813B2 (en) 2019-09-20 2022-08-16 Tencent America LLC Signaling of inter layer prediction in video bitstream

Also Published As

Publication number Publication date
KR20220070533A (ko) 2022-05-31
JP2024038193A (ja) 2024-03-19
JP7414976B2 (ja) 2024-01-16
CN117915112A (zh) 2024-04-19
CA3156854A1 (en) 2021-04-15
EP4032308A4 (en) 2022-11-23
CN114503593A (zh) 2022-05-13
CN114503593B (zh) 2024-02-13
EP4032308A1 (en) 2022-07-27
JP2022550989A (ja) 2022-12-06
WO2021068854A1 (en) 2021-04-15
AU2020362795A1 (en) 2022-04-21
US20220232260A1 (en) 2022-07-21

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