MX2021013536A - Decodificador hipotético de referencia para actualización de decodificación gradual. - Google Patents

Decodificador hipotético de referencia para actualización de decodificación gradual.

Info

Publication number
MX2021013536A
MX2021013536A MX2021013536A MX2021013536A MX2021013536A MX 2021013536 A MX2021013536 A MX 2021013536A MX 2021013536 A MX2021013536 A MX 2021013536A MX 2021013536 A MX2021013536 A MX 2021013536A MX 2021013536 A MX2021013536 A MX 2021013536A
Authority
MX
Mexico
Prior art keywords
hypothetical reference
decoding refresh
bitstream
reference decoder
hrd
Prior art date
Application number
MX2021013536A
Other languages
English (en)
Inventor
Ye-Kui Wang
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 MX2021013536A publication Critical patent/MX2021013536A/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
    • H04N19/10—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
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • 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
    • H04N19/46—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Se divulga un mecanismo de codificación de video. El mecanismo incluye la codificación en un flujo de bits de una unidad de acceso (AU) de actualización de decodificación gradual (GDR) y un mensaje de información de mejora complementaria (SEI) de período de almacenamiento intermedio (BP) asociado con la GDR AU. Un decodificador hipotético de referencia (HRD) se inicializa con base en el mensaje BP SEI. Se realiza una prueba de conformidad de HRD en el flujo de bits usando el HRD. El flujo de bits se almacena para comunicación hacia un decodificador.
MX2021013536A 2019-05-06 2020-04-30 Decodificador hipotético de referencia para actualización de decodificación gradual. MX2021013536A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962843999P 2019-05-06 2019-05-06
PCT/US2020/030639 WO2020226991A1 (en) 2019-05-06 2020-04-30 Hypothetical reference decoder for gradual decoding refresh

Publications (1)

Publication Number Publication Date
MX2021013536A true MX2021013536A (es) 2022-01-31

Family

ID=73051697

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2021013535A MX2021013535A (es) 2019-05-06 2020-04-30 Señalización de punto de recuperación en codificación de video.
MX2021013536A MX2021013536A (es) 2019-05-06 2020-04-30 Decodificador hipotético de referencia para actualización de decodificación gradual.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
MX2021013535A MX2021013535A (es) 2019-05-06 2020-04-30 Señalización de punto de recuperación en codificación de video.

Country Status (7)

Country Link
US (2) US20220060693A1 (es)
EP (2) EP3959890A4 (es)
JP (3) JP7462679B2 (es)
KR (2) KR20220003084A (es)
CN (2) CN113796085A (es)
MX (2) MX2021013535A (es)
WO (2) WO2020226991A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220115958A (ko) 2019-12-26 2022-08-19 바이트댄스 아이엔씨 코딩된 비트스트림들에서의 비디오 계층들의 시그널링에 대한 제약들
KR20220114557A (ko) 2019-12-26 2022-08-17 바이트댄스 아이엔씨 코딩된 픽처 내에서 디코딩 순서를 구현하기 위한 기술들
WO2021134018A1 (en) 2019-12-26 2021-07-01 Bytedance Inc. Signaling of decoded picture buffer parameters in layered video
JP2023508680A (ja) 2019-12-27 2023-03-03 バイトダンス インコーポレイテッド ビデオコーディングにおけるサブピクチャシグナリング
WO2021142369A1 (en) 2020-01-09 2021-07-15 Bytedance Inc. Signalling of the wavefront parallel processing
EP4300957A1 (en) * 2022-06-30 2024-01-03 Nokia Technologies Oy A method, an apparatus and a computer program product for implementing gradual decoding refresh

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7266147B2 (en) * 2003-03-31 2007-09-04 Sharp Laboratories Of America, Inc. Hypothetical reference decoder
US20130170561A1 (en) * 2011-07-05 2013-07-04 Nokia Corporation Method and apparatus for video coding and decoding
US9420307B2 (en) * 2011-09-23 2016-08-16 Qualcomm Incorporated Coding reference pictures for a reference picture set
US20140079138A1 (en) * 2012-09-14 2014-03-20 Sony Corporation Simplifiication of pic_order_cnt_lsb calculation in hm8
US9398293B2 (en) 2013-01-07 2016-07-19 Qualcomm Incorporated Gradual decoding refresh with temporal scalability support in video coding
CN104919803B (zh) * 2013-01-15 2017-09-12 华为技术有限公司 一种用于解码视频比特流的方法
US9854270B2 (en) * 2013-12-19 2017-12-26 Qualcomm Incorporated Device and method for scalable coding of video information

Also Published As

Publication number Publication date
CN113796085A (zh) 2021-12-14
CN113796081A (zh) 2021-12-14
WO2020226991A1 (en) 2020-11-12
JP2022531482A (ja) 2022-07-06
MX2021013535A (es) 2022-01-31
US20220060694A1 (en) 2022-02-24
KR20220003084A (ko) 2022-01-07
JP7443398B2 (ja) 2024-03-05
EP3957069A1 (en) 2022-02-23
JP7462679B2 (ja) 2024-04-05
EP3957069A4 (en) 2022-06-22
KR20220003618A (ko) 2022-01-10
US20220060693A1 (en) 2022-02-24
JP2024028361A (ja) 2024-03-04
JP2022531481A (ja) 2022-07-06
WO2020226992A1 (en) 2020-11-12
EP3959890A4 (en) 2022-07-06
EP3959890A1 (en) 2022-03-02

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