BR112021017453A2 - Inicialização de probabilidade para codificação de vídeo - Google Patents

Inicialização de probabilidade para codificação de vídeo

Info

Publication number
BR112021017453A2
BR112021017453A2 BR112021017453A BR112021017453A BR112021017453A2 BR 112021017453 A2 BR112021017453 A2 BR 112021017453A2 BR 112021017453 A BR112021017453 A BR 112021017453A BR 112021017453 A BR112021017453 A BR 112021017453A BR 112021017453 A2 BR112021017453 A2 BR 112021017453A2
Authority
BR
Brazil
Prior art keywords
context
value
entropy
video encoding
initialization
Prior art date
Application number
BR112021017453A
Other languages
English (en)
Inventor
Amir Said
Jie Dong
Marta Karczewicz
Vadim Seregin
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR112021017453A2 publication Critical patent/BR112021017453A2/pt

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
    • H04N19/10—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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Landscapes

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

Abstract

inicialização de probabilidade para codificação de vídeo. um método de exemplo para decodificação de entropia de dados de vídeo inclui a recuperação de um valor de inicialização predefinido para um contexto de uma pluralidade de contextos usados em um processo de codificação de entropia adaptável ao contexto para codificar por entropia um valor para um elemento de sintaxe para uma unidade codificável de forma independente de dados de vídeo; determinar, com base no valor de inicialização predefinido e em um domínio linear, um estado de probabilidade inicial do contexto; e decodificar por entropia, de um fluxo de bits e com base no estado de probabilidade inicial do contexto, um bin do valor para o elemento de sintaxe.
BR112021017453A 2019-03-12 2020-03-12 Inicialização de probabilidade para codificação de vídeo BR112021017453A2 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962817475P 2019-03-12 2019-03-12
US201962834297P 2019-04-15 2019-04-15
US201962871519P 2019-07-08 2019-07-08
US16/816,016 US11178399B2 (en) 2019-03-12 2020-03-11 Probability initialization for video coding
PCT/US2020/022355 WO2020186038A1 (en) 2019-03-12 2020-03-12 Probability initialization for video coding

Publications (1)

Publication Number Publication Date
BR112021017453A2 true BR112021017453A2 (pt) 2021-11-16

Family

ID=72422810

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112021017453A BR112021017453A2 (pt) 2019-03-12 2020-03-12 Inicialização de probabilidade para codificação de vídeo

Country Status (14)

Country Link
US (1) US11178399B2 (pt)
EP (1) EP3939326A1 (pt)
JP (1) JP7419389B2 (pt)
KR (1) KR20210133976A (pt)
CN (1) CN113632491A (pt)
AU (1) AU2020235096A1 (pt)
BR (1) BR112021017453A2 (pt)
CA (1) CA3131883A1 (pt)
CL (1) CL2021002385A1 (pt)
CO (1) CO2021011814A2 (pt)
IL (1) IL285919B2 (pt)
MX (1) MX2021011102A (pt)
SG (1) SG11202109363QA (pt)
WO (1) WO2020186038A1 (pt)

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US20230254489A1 (en) * 2022-02-07 2023-08-10 Tencent America LLC Adaptive context-based adaptive binary arithmetic coding (cabac) initial state selection from coded pictures
WO2023195643A1 (ko) * 2022-04-05 2023-10-12 삼성전자 주식회사 엔트로피 부호화 및 복호화 장치 및 그 방법
WO2024151132A1 (ko) * 2023-01-13 2024-07-18 엘지전자 주식회사 포인트 클라우드 데이터 송신 장치, 포인트 클라우드 데이터 송신 방법, 포인트 클라우드 데이터 수신 장치 및 포인트 클라우드 데이터 수신 방법

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UA114674C2 (uk) * 2011-07-15 2017-07-10 ДЖ.І. ВІДІЕУ КЕМПРЕШН, ЛЛСі Ініціалізація контексту в ентропійному кодуванні
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ES2710234B1 (es) * 2015-09-11 2020-03-09 Kt Corp Procedimiento y dispositivo para procesar señales de vídeo
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Also Published As

Publication number Publication date
JP2022524056A (ja) 2022-04-27
JP7419389B2 (ja) 2024-01-22
CN113632491A (zh) 2021-11-09
IL285919B2 (en) 2024-07-01
CL2021002385A1 (es) 2022-06-17
MX2021011102A (es) 2021-10-22
WO2020186038A1 (en) 2020-09-17
SG11202109363QA (en) 2021-09-29
AU2020235096A1 (en) 2021-09-30
IL285919B1 (en) 2024-03-01
EP3939326A1 (en) 2022-01-19
KR20210133976A (ko) 2021-11-08
US20200296378A1 (en) 2020-09-17
CA3131883A1 (en) 2020-09-17
IL285919A (en) 2021-10-31
CO2021011814A2 (es) 2021-09-30
US11178399B2 (en) 2021-11-16

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