CL2022000858A1 - Prevención de señalización redundante en flujos de bits de video multi-capa - Google Patents

Prevención de señalización redundante en flujos de bits de video multi-capa

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Publication number
CL2022000858A1
CL2022000858A1 CL2022000858A CL2022000858A CL2022000858A1 CL 2022000858 A1 CL2022000858 A1 CL 2022000858A1 CL 2022000858 A CL2022000858 A CL 2022000858A CL 2022000858 A CL2022000858 A CL 2022000858A CL 2022000858 A1 CL2022000858 A1 CL 2022000858A1
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CL
Chile
Prior art keywords
vps
parameters
layers
avoidance
sublayers
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CL2022000858A
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English (en)
Inventor
Ye-Kui Wang
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Huawei Tech Co Ltd
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Publication of CL2022000858A1 publication Critical patent/CL2022000858A1/es

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    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H—ELECTRICITY
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    • 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
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    • H04N19/136—Incoming video signal characteristics or properties
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    • 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
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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Se proporciona un método de decodificación. El método incluye recibir un flujo de bits de video que incluye una pluralidad de capas que tienen subcapas y un conjunto de parámetros de video (VPS) que incluye una primera bandera que tiene un primer valor, en donde la primera bandera que tiene el primer valor especifica que los identificadores temporales (ID) de una representación de subcapa más alta para información de nivel, parámetros de memoria intermedia de imágenes decodificadas (DPB) y parámetros de actualización de decodificador hipotético (HRD) no están presentes en el VPS y se infiere que son iguales a un número máximo de las subcapas que pueden estar presentes en una capa de la pluralidad de capas especificadas por el VPS; obtener la información de nivel, los parámetros HRD y los parámetros DPB correspondientes al ID temporal de la representación de subcapa más alta del VPS; y decodificar una imagen de una de la pluralidad de capas para obtener una imagen decodificada. También se proporciona un método de codificación correspondiente.
CL2022000858A 2019-10-07 2022-04-05 Prevención de señalización redundante en flujos de bits de video multi-capa CL2022000858A1 (es)

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CL2022000860A CL2022000860A1 (es) 2019-10-07 2022-04-05 Prevención de señalización redundante en flujos de bits de video multi-capa
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EP (7) EP4032293A4 (es)
JP (14) JP7413518B2 (es)
KR (7) KR20220070538A (es)
CN (17) CN117478892A (es)
AU (7) AU2020323624A1 (es)
BR (12) BR112022006419A2 (es)
CA (4) CA3156990A1 (es)
CL (4) CL2022000858A1 (es)
IL (1) IL292060A (es)
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