MX428162B - Un codificador, un decodificador y metodos correspondientes - Google Patents

Un codificador, un decodificador y metodos correspondientes

Info

Publication number
MX428162B
MX428162B MX2022011943A MX2022011943A MX428162B MX 428162 B MX428162 B MX 428162B MX 2022011943 A MX2022011943 A MX 2022011943A MX 2022011943 A MX2022011943 A MX 2022011943A MX 428162 B MX428162 B MX 428162B
Authority
MX
Mexico
Prior art keywords
value
syntax element
sps
video
decoding
Prior art date
Application number
MX2022011943A
Other languages
English (en)
Other versions
MX2022011943A (es
Inventor
Anand Meher Kotra
Biao Wang
Elena Alexandrovna Alshina
Han Gao
Semih Esenlik
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 MX2022011943A publication Critical patent/MX2022011943A/es
Publication of MX428162B publication Critical patent/MX428162B/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
    • H04N19/30—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
    • H04N19/70—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
    • H04N19/169—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

Landscapes

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

Abstract

Un método de decodificación de un flujo de bits de video o imagen implementado por un dispositivo de decodificación, el flujo de bits incluye un conjunto de parámetros de secuencia actual (SPS) que comprende elementos de sintaxis que se aplican a una secuencia de video, el método comprende: obtener un primer elemento de sintaxis utilizado para determinar el número máximo de subcapas temporales que se permite que estén presentes en cada secuencia de video de capa codificada) con referencia al SPS actual, en donde el valor del primer elemento de sintaxis se encuentra en el intervalo de 0 a un primer valor, en donde el primer valor es el valor de un segundo elemento de sintaxis utilizado para determinar el número máximo de subcapas temporales que se permite que estén presentes en una capa en cada secuencia de video codificada con referencia a un conjunto de parámetros de video, cuando el SPS hace referencia al segundo elemento de sintaxis; decodificar el flujo de bits basado en el valor del primer elemento de sintaxis.
MX2022011943A 2020-03-24 2021-03-24 Un codificador, un decodificador y metodos correspondientes MX428162B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP2020058208 2020-03-24
PCT/CN2021/082540 WO2021190525A1 (en) 2020-03-24 2021-03-24 An encoder, a decoder and corresponding methods

Publications (2)

Publication Number Publication Date
MX2022011943A MX2022011943A (es) 2023-01-11
MX428162B true MX428162B (es) 2025-11-13

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
MX2022011943A MX428162B (es) 2020-03-24 2021-03-24 Un codificador, un decodificador y metodos correspondientes
MX2025010326A MX2025010326A (es) 2020-03-24 2022-09-23 Un codificador, un decodificador y metodos correspondientes

Family Applications After (1)

Application Number Title Priority Date Filing Date
MX2025010326A MX2025010326A (es) 2020-03-24 2022-09-23 Un codificador, un decodificador y metodos correspondientes

Country Status (11)

Country Link
US (2) US12250410B2 (es)
EP (1) EP4118834A4 (es)
JP (1) JP7640024B2 (es)
CN (1) CN115349260A (es)
AU (1) AU2021244737A1 (es)
BR (1) BR112022019219A2 (es)
CA (1) CA3173179A1 (es)
CL (1) CL2022002570A1 (es)
IL (1) IL296780A (es)
MX (2) MX428162B (es)
WO (1) WO2021190525A1 (es)

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* Cited by examiner, † Cited by third party
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US11381842B2 (en) * 2020-03-26 2022-07-05 Alibaba Group Holding Limited Methods for coding or decoding video parameter set or sequence parameter set
US11509920B2 (en) 2020-03-27 2022-11-22 Tencent America LLC Indication of max sublayer numbers in multilayered video stream
EP4128774A1 (en) * 2020-03-31 2023-02-08 InterDigital VC Holdings France Method and apparatus for video encoding and decoding
EP4128791A4 (en) * 2020-04-02 2023-07-19 Telefonaktiebolaget LM ERICSSON (PUBL) Decoding based on bi-directional picture condition

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US10021394B2 (en) 2012-09-24 2018-07-10 Qualcomm Incorporated Hypothetical reference decoder parameters in video coding
US9319703B2 (en) 2012-10-08 2016-04-19 Qualcomm Incorporated Hypothetical reference decoder parameter syntax structure
SG10201913551WA (en) * 2013-04-07 2020-03-30 Dolby Int Ab Signaling change in output layer sets
US9565437B2 (en) * 2013-04-08 2017-02-07 Qualcomm Incorporated Parameter set designs for video coding extensions
JP6472449B2 (ja) * 2014-01-02 2019-02-20 シャープ株式会社 ビデオシーケンスを復号するための方法
US10567804B2 (en) 2014-01-08 2020-02-18 Qualcomm Incorporated Carriage of HEVC extension bitstreams and buffer model with MPEG-2 systems
US10148969B2 (en) 2015-02-11 2018-12-04 Qualcomm Incorporated Of sample entry and operation point signalling in a layered video file format
ES3063791T3 (en) 2016-02-09 2026-04-20 Fraunhofer Ges Forschung Concept for picture/video data streams allowing efficient reducibility or efficient random access
US10554981B2 (en) 2016-05-10 2020-02-04 Qualcomm Incorporated Methods and systems for generating regional nesting messages for video pictures
US20210235124A1 (en) * 2020-01-29 2021-07-29 Qualcomm Incorporated Decoded picture buffer (dpb) parameter signaling for video coding
US11778215B2 (en) * 2020-02-28 2023-10-03 Qualcomm Incorporated Coding output layer set data and conformance window data of high level syntax for video coding
WO2021170124A1 (en) * 2020-02-28 2021-09-02 Huawei Technologies Co., Ltd. An encoder, a decoder and corresponding methods of signaling and semantics in parameter sets

Also Published As

Publication number Publication date
JP7640024B2 (ja) 2025-03-05
MX2025010326A (es) 2025-10-01
JP2023520326A (ja) 2023-05-17
EP4118834A1 (en) 2023-01-18
WO2021190525A1 (en) 2021-09-30
IL296780A (en) 2022-11-01
CN115349260A (zh) 2022-11-15
US12250410B2 (en) 2025-03-11
CA3173179A1 (en) 2021-09-30
US20230068266A1 (en) 2023-03-02
US20250240455A1 (en) 2025-07-24
MX2022011943A (es) 2023-01-11
BR112022019219A2 (pt) 2022-11-29
KR20220156069A (ko) 2022-11-24
JP2025013860A (ja) 2025-01-28
AU2021244737A1 (en) 2022-10-20
EP4118834A4 (en) 2023-08-09
CL2022002570A1 (es) 2023-03-24