BR112022000094A2 - Codificador, decodificador, métodos e fluxo de dados - Google Patents

Codificador, decodificador, métodos e fluxo de dados

Info

Publication number
BR112022000094A2
BR112022000094A2 BR112022000094A BR112022000094A BR112022000094A2 BR 112022000094 A2 BR112022000094 A2 BR 112022000094A2 BR 112022000094 A BR112022000094 A BR 112022000094A BR 112022000094 A BR112022000094 A BR 112022000094A BR 112022000094 A2 BR112022000094 A2 BR 112022000094A2
Authority
BR
Brazil
Prior art keywords
decoder
code conversion
data stream
predetermined portion
respect
Prior art date
Application number
BR112022000094A
Other languages
English (en)
Inventor
Benjamin Bross
Christian Helmrich
Detlev Marpe
Heiko Schwarz
Thomas Wiegand
Hoang Nguyen Tung
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of BR112022000094A2 publication Critical patent/BR112022000094A2/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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • 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
    • H04N19/10—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
    • H04N19/10—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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/17—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
    • H04N19/176—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 block, e.g. a macroblock
    • 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
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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
    • H04N19/60—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
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • 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)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

codificador, decodificador, métodos e fluxo de dados. trata-se de decodificador para decodificar uma figuração a partir de um fluxo de dados, configurado para verificar (106) a possibilidade de uma pluralidade (98) de parâmetros de conversão em código, que estão contidos no fluxo de dados (14), se referir a uma porção predeterminada (100) da figuração (12) e controlar um modo de transformada residual de previsão e uma precisão de quantização em relação à porção predeterminada, ser indicativa de uma definição de parâmetro de conversão em código correspondente a uma conversão em código residual de previsão sem perda. em resposta à pluralidade de parâmetros de conversão em código ser indicativa da definição de parâmetro de conversão em código correspondente à conversão em código residual de previsão sem perda, o decodificador é configurado para definir uma ou mais opções de conversão em código predeterminadas relacionadas a uma ou mais ferramentas do decodificador para processar uma reconstrução preditiva corrigida com residual de previsão em relação à porção predeterminada de modo que a uma ou mais ferramentas sejam desabilitadas em relação à porção predeterminada.
BR112022000094A 2019-07-05 2020-07-02 Codificador, decodificador, métodos e fluxo de dados BR112022000094A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19184790 2019-07-05
PCT/EP2020/068672 WO2021004887A1 (en) 2019-07-05 2020-07-02 Encoder, decoder, methods and computer programs for an improved lossless compression

Publications (1)

Publication Number Publication Date
BR112022000094A2 true BR112022000094A2 (pt) 2022-03-15

Family

ID=67303356

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022000094A BR112022000094A2 (pt) 2019-07-05 2020-07-02 Codificador, decodificador, métodos e fluxo de dados

Country Status (9)

Country Link
US (1) US11973988B2 (pt)
EP (1) EP3994879A1 (pt)
JP (2) JP7354403B2 (pt)
KR (1) KR20220056846A (pt)
CN (1) CN114342370A (pt)
BR (1) BR112022000094A2 (pt)
MX (1) MX2022000007A (pt)
TW (1) TWI771705B (pt)
WO (1) WO2021004887A1 (pt)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008104072A (ja) 2006-10-20 2008-05-01 Canon Inc 画像データの符号化方法および符号化装置
US11184623B2 (en) * 2011-09-26 2021-11-23 Texas Instruments Incorporated Method and system for lossless coding mode in video coding
US20130294524A1 (en) 2012-05-04 2013-11-07 Qualcomm Incorporated Transform skipping and lossless coding unification
WO2020085278A1 (ja) * 2018-10-22 2020-04-30 日本放送協会 符号化装置、復号装置、及びプログラム
US10764577B2 (en) * 2018-10-25 2020-09-01 Futurewei Technologies, Inc. Non-MPM mode coding for intra prediction in video coding

Also Published As

Publication number Publication date
KR20220056846A (ko) 2022-05-06
TWI771705B (zh) 2022-07-21
US11973988B2 (en) 2024-04-30
TW202110196A (zh) 2021-03-01
CN114342370A (zh) 2022-04-12
EP3994879A1 (en) 2022-05-11
WO2021004887A1 (en) 2021-01-14
JP2023169321A (ja) 2023-11-29
JP7354403B2 (ja) 2023-10-02
MX2022000007A (es) 2022-03-17
JP2022538687A (ja) 2022-09-05
US20220132169A1 (en) 2022-04-28

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