BR112022006429A2 - Restrições de entrada de imagem de referência com base em tamanho de dpb - Google Patents

Restrições de entrada de imagem de referência com base em tamanho de dpb

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Publication number
BR112022006429A2
BR112022006429A2 BR112022006429A BR112022006429A BR112022006429A2 BR 112022006429 A2 BR112022006429 A2 BR 112022006429A2 BR 112022006429 A BR112022006429 A BR 112022006429A BR 112022006429 A BR112022006429 A BR 112022006429A BR 112022006429 A2 BR112022006429 A2 BR 112022006429A2
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BR
Brazil
Prior art keywords
image
decoded
reference image
ref
image input
Prior art date
Application number
BR112022006429A
Other languages
English (en)
Inventor
Wang Ye-Kui
Original Assignee
Huawei Tech Co Ltd
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Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112022006429A2 publication Critical patent/BR112022006429A2/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
    • H04N19/10—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
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    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • H—ELECTRICITY
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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
    • H04N19/157—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
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    • H04N19/188—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 video data packet, e.g. a network abstraction layer [NAL] unit
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    • H04N19/174—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 slice, e.g. a line of blocks or a group of blocks
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    • 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

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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

RESTRIÇÕES DE ENTRADA DE IMAGEM DE REFERÊNCIA COM BASE EM TAMANHO DE DPB. Um mecanismo de codificação de vídeo é revelado. O mecanismo inclui receber um fluxo de bits que compreende uma imagem atual e uma estrutura de sintaxe de lista de imagens de referência (ref_pic_list_struct()) que compreende um número de entradas de referência (num_ref_entries) restringido a uma faixa de zero a um tamanho de buffer de imagem decodificada máximo mais um desvio. A imagem atual é decodificada com base na ref_pic_list_struct() para produzir uma imagem decodificada. A imagem decodificada é encaminhada para exibição como parte de uma sequência de vídeo decodificada.
BR112022006429A 2019-10-07 2020-10-06 Restrições de entrada de imagem de referência com base em tamanho de dpb BR112022006429A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962911808P 2019-10-07 2019-10-07
PCT/US2020/054454 WO2021022273A1 (en) 2019-10-07 2020-10-06 Dpb size based reference picture entry constraints

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BR112022006429A2 true BR112022006429A2 (pt) 2022-06-28

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

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BR122022009671-9A BR122022009671A2 (pt) 2019-10-07 2020-10-06 Prevenção de sinalização redundante em fluxos de bits de vídeo de múltiplas camadas
BR112022006389A BR112022006389A2 (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

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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
BR122022009683-2A BR122022009683A2 (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
BR112022006421A BR112022006421A2 (pt) 2019-10-07 2020-10-06 Prevenção de erro em extração de subfluxo de bits
BR122022009696-4A BR122022009696A2 (pt) 2019-10-07 2020-10-06 Prevenção de erro em extração de subfluxo de bits
BR122022009673-5A BR122022009673A2 (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
BR122022009663-8A BR122022009663A2 (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) US20220232257A1 (pt)
EP (7) EP4032294A4 (pt)
JP (12) JP7423764B2 (pt)
KR (7) KR20220071277A (pt)
CN (15) CN117478892A (pt)
AU (7) AU2020322053A1 (pt)
BR (12) BR122022009671A2 (pt)
CA (4) CA3156987A1 (pt)
CL (4) CL2022000860A1 (pt)
IL (1) IL292060A (pt)
MX (4) MX2022004138A (pt)
WO (7) WO2021022269A2 (pt)

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