BR112022005271A2 - Método implementado por codificador, e codificador, e meio não transitório legível em computador - Google Patents

Método implementado por codificador, e codificador, e meio não transitório legível em computador

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Publication number
BR112022005271A2
BR112022005271A2 BR112022005271A BR112022005271A BR112022005271A2 BR 112022005271 A2 BR112022005271 A2 BR 112022005271A2 BR 112022005271 A BR112022005271 A BR 112022005271A BR 112022005271 A BR112022005271 A BR 112022005271A BR 112022005271 A2 BR112022005271 A2 BR 112022005271A2
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BR
Brazil
Prior art keywords
encoder
sublayer
parameters
cpb
flag
Prior art date
Application number
BR112022005271A
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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.)
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Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112022005271A2 publication Critical patent/BR112022005271A2/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
    • 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
    • H04N19/10—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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • 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
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
    • 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
    • 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
    • H04N19/188—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
    • 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
    • H04N19/42—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
    • 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
    • H04N19/42—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
    • H04N19/43—Hardware specially adapted for motion estimation or compensation
    • H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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

Abstract

método implementado por codificador, e codificador, e meio não transitório legível em computador. a presente invenção refere-se a mecanismo de codificação de vídeo; método e dispositivos (de codificação e decodificação de vídeo, e de produtos de computador (meio de armazenamento)). o mecanismo inclui codificar uma pluralidade de representações de subcamadas em um fluxo de bits. parâmetros de decodificador de referência hipotético (hrd) e um flag de presença de parâmetros de buffer de imagem de codificação (cpb) de subcamada (sublayer_cpb_params_present_flag) também são codificados no fluxo de bits. os parâmetros de hrd para todas as representações de subcamadas com identificadores temporais (temporalids) menores do que um temporalid máximo são inferidos como iguais aos parâmetros de hrd para um máximo de representações de subcamadas com o temporalid máximo quando o sublayer_cpb_params_present_flag é definido como zero. um conjunto de testes de conformidade de fluxo de bits é executado no fluxo de bits com base nos parâmetros de hrd. o fluxo de bits é armazenado para comunicação a um decodificador.
BR112022005271A 2019-09-24 2020-09-08 Método implementado por codificador, e codificador, e meio não transitório legível em computador BR112022005271A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962905244P 2019-09-24 2019-09-24
PCT/US2020/049729 WO2021061391A1 (en) 2019-09-24 2020-09-08 Hrd parameters for layer based conformance testing

Publications (1)

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BR112022005271A2 true BR112022005271A2 (pt) 2022-06-21

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BR112022005314A BR112022005314A2 (pt) 2019-09-24 2020-09-08 Método implementado por decodificador, dispositivos de codificação e de decodificação de vídeo, e meio não transitório legível em computador
BR112022005466A BR112022005466A2 (pt) 2019-09-24 2020-09-08 Dispositivos de codificação, e de decodificação de vídeo, e de produto de computador, e métodos associados
BR112022005402A BR112022005402A2 (pt) 2019-09-24 2020-09-08 Parâmetros de hrd de nível de sequência
BR112022005271A BR112022005271A2 (pt) 2019-09-24 2020-09-08 Método implementado por codificador, e codificador, e meio não transitório legível em computador
BR112022005527A BR112022005527A2 (pt) 2019-09-24 2020-09-08 Dispositivos de codificação e decodificação de vídeo, e de produto de computador, e método associado
BR112022005458A BR112022005458A2 (pt) 2019-09-24 2020-09-08 Dispositivos de codificação e de decodificação de vídeo, e de produto de computador, e métodos associados
BR112022005448A BR112022005448A2 (pt) 2019-09-24 2020-09-08 Métodos implementados por codificador, e decodificador, dispositivos de codificação de vídeo, e de produto de computador

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BR112022005314A BR112022005314A2 (pt) 2019-09-24 2020-09-08 Método implementado por decodificador, dispositivos de codificação e de decodificação de vídeo, e meio não transitório legível em computador
BR112022005466A BR112022005466A2 (pt) 2019-09-24 2020-09-08 Dispositivos de codificação, e de decodificação de vídeo, e de produto de computador, e métodos associados
BR112022005402A BR112022005402A2 (pt) 2019-09-24 2020-09-08 Parâmetros de hrd de nível de sequência

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BR112022005527A BR112022005527A2 (pt) 2019-09-24 2020-09-08 Dispositivos de codificação e decodificação de vídeo, e de produto de computador, e método associado
BR112022005458A BR112022005458A2 (pt) 2019-09-24 2020-09-08 Dispositivos de codificação e de decodificação de vídeo, e de produto de computador, e métodos associados
BR112022005448A BR112022005448A2 (pt) 2019-09-24 2020-09-08 Métodos implementados por codificador, e decodificador, dispositivos de codificação de vídeo, e de produto de computador

Country Status (12)

Country Link
US (7) US20220217393A1 (pt)
EP (7) EP4026328A4 (pt)
JP (6) JP2022549642A (pt)
KR (6) KR20220062659A (pt)
CN (21) CN117319673A (pt)
AU (6) AU2020352432A1 (pt)
BR (7) BR112022005314A2 (pt)
CA (5) CA3152322A1 (pt)
CL (5) CL2022000705A1 (pt)
IL (1) IL291689A (pt)
MX (5) MX2022003453A (pt)
WO (7) WO2021061390A1 (pt)

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WO2021061388A1 (en) 2021-04-01
JP7472425B2 (ja) 2024-04-23
CA3152345A1 (en) 2021-04-01
IL291689A (en) 2022-05-01
US20220217381A1 (en) 2022-07-07
AU2020354306A1 (en) 2022-04-14
WO2021061393A1 (en) 2021-04-01
CN117319673A (zh) 2023-12-29
BR112022005402A2 (pt) 2022-06-21
CA3152325A1 (en) 2021-04-01
EP4026330A4 (en) 2023-01-25
CN117294855A (zh) 2023-12-26
EP4026315A4 (en) 2022-12-14
JP2022549447A (ja) 2022-11-25
MX2022003453A (es) 2022-04-19
WO2021061392A1 (en) 2021-04-01
EP4026339A1 (en) 2022-07-13
CN116723332A (zh) 2023-09-08
KR20220062659A (ko) 2022-05-17
CN117336493A (zh) 2024-01-02
EP4026338A1 (en) 2022-07-13
WO2021061386A1 (en) 2021-04-01
US20220217393A1 (en) 2022-07-07
CN117440164A (zh) 2024-01-23
CL2022000708A1 (es) 2022-11-18
MX2022003562A (es) 2022-06-16
KR20220065867A (ko) 2022-05-20
CN114503547B (zh) 2023-09-22
US20220217394A1 (en) 2022-07-07
JP2022549642A (ja) 2022-11-28
CN114424558A (zh) 2022-04-29
AU2020354305A1 (en) 2022-04-14
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