BR112022006419A2 - Prevenção de erro de sps em extração de subfluxo de bits - Google Patents

Prevenção de erro de sps em extração de subfluxo de bits

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Publication number
BR112022006419A2
BR112022006419A2 BR112022006419A BR112022006419A BR112022006419A2 BR 112022006419 A2 BR112022006419 A2 BR 112022006419A2 BR 112022006419 A BR112022006419 A BR 112022006419A BR 112022006419 A BR112022006419 A BR 112022006419A BR 112022006419 A2 BR112022006419 A2 BR 112022006419A2
Authority
BR
Brazil
Prior art keywords
layer
sps
subflow
bits
extraction
Prior art date
Application number
BR112022006419A
Other languages
English (en)
Inventor
Wang Ye-Kui
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 BR112022006419A2 publication Critical patent/BR112022006419A2/pt

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    • 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
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    • 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
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    • 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
    • H04N19/136—Incoming video signal characteristics or properties
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    • 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
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    • 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
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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
    • H—ELECTRICITY
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    • 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
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    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
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    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
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    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop

Landscapes

  • 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

PREVENÇÃO DE ERRO DE SPS EM EXTRAÇÃO DE SUBFLUXO DE BITS. Um mecanismo de codificação de vídeo é revelado. O mecanismo inclui codificar uma sequência de vídeo de camada codificada (CLVS) para uma camada em um fluxo de bits. Um conjunto de parâmetros de sequência (SPS) referido pela CLVS é, também, codificado no fluxo de bits. O SPS está restringido a ter um valor de identificador de camada de cabeçalho de unidade de camada de abstração de rede (NAL) (nuh_layer_id) igual a um valor de nuh_layer_id da CLVS quando a camada não usar predição de camada inter. O fluxo de bits é armazenado para comunicação em direção a um decodificador.
BR112022006419A 2019-10-07 2020-10-06 Prevenção de erro de sps em extração de subfluxo de bits BR112022006419A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962911808P 2019-10-07 2019-10-07
PCT/US2020/054453 WO2021022272A2 (en) 2019-10-07 2020-10-06 Sps error avoidance in sub-bitstream extraction

Publications (1)

Publication Number Publication Date
BR112022006419A2 true BR112022006419A2 (pt) 2022-06-28

Family

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Family Applications (12)

Application Number Title Priority Date Filing Date
BR122022009673-5A BR122022009673A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006429A BR112022006429A2 (pt) 2019-10-07 2020-10-06 Restrições de entrada de imagem de referência com base em tamanho de dpb
BR122022009696-4A BR122022009696A2 (pt) 2019-10-07 2020-10-06 Prevenção de erro em extração de subfluxo de bits
BR122022009683-2A BR122022009683A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006393A BR112022006393A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006422A BR112022006422A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006421A BR112022006421A2 (pt) 2019-10-07 2020-10-06 Prevenção de erro em extração de subfluxo de bits
BR112022006389A BR112022006389A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR122022009663-8A BR122022009663A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR122022009671-9A BR122022009671A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006419A BR112022006419A2 (pt) 2019-10-07 2020-10-06 Prevenção de erro de sps em extração de subfluxo de bits
BR112022006392A BR112022006392A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas

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Application Number Title Priority Date Filing Date
BR122022009673-5A BR122022009673A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006429A BR112022006429A2 (pt) 2019-10-07 2020-10-06 Restrições de entrada de imagem de referência com base em tamanho de dpb
BR122022009696-4A BR122022009696A2 (pt) 2019-10-07 2020-10-06 Prevenção de erro em extração de subfluxo de bits
BR122022009683-2A BR122022009683A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006393A BR112022006393A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006422A BR112022006422A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006421A BR112022006421A2 (pt) 2019-10-07 2020-10-06 Prevenção de erro em extração de subfluxo de bits
BR112022006389A BR112022006389A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR122022009663-8A BR122022009663A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR122022009671-9A BR122022009671A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas

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BR112022006392A BR112022006392A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas

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US (7) US12096034B2 (pt)
EP (8) EP4032294A4 (pt)
JP (13) JP7439249B2 (pt)
KR (7) KR20220069114A (pt)
CN (18) CN115580730B (pt)
AU (7) AU2020319903A1 (pt)
BR (12) BR122022009673A2 (pt)
CA (4) CA3156990A1 (pt)
CL (4) CL2022000860A1 (pt)
IL (1) IL292060A (pt)
MX (4) MX2022004138A (pt)
WO (7) WO2021022267A2 (pt)

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