BR112021017901A2 - Decodificador, codificador, métodos para decodificação e codificação, e fluxo de dados - Google Patents

Decodificador, codificador, métodos para decodificação e codificação, e fluxo de dados

Info

Publication number
BR112021017901A2
BR112021017901A2 BR112021017901A BR112021017901A BR112021017901A2 BR 112021017901 A2 BR112021017901 A2 BR 112021017901A2 BR 112021017901 A BR112021017901 A BR 112021017901A BR 112021017901 A BR112021017901 A BR 112021017901A BR 112021017901 A2 BR112021017901 A2 BR 112021017901A2
Authority
BR
Brazil
Prior art keywords
partition
decoder
transform
predetermined block
dimension
Prior art date
Application number
BR112021017901A
Other languages
English (en)
Inventor
Benjamin Bross
Detlev Marpe
Heiko Schwarz
Hoang Tung Nguyen Phan
De Luxán Hernández Santiago
Thomas Wiegand
Valeri George
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 BR112021017901A2 publication Critical patent/BR112021017901A2/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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/10—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
    • H04N19/18—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 set of transform coefficients
    • 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

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)

Abstract

decodificador, codificador, métodos para decodificação e codificação, e fluxo de dados. trata-se de um decodificador para decodificação com base em bloco de uma imagem de um fluxo de dados, configurado para decodificar um modo de intraconversão em código para um bloco predeterminado da imagem e um sinalizador de dimensão de partição e definir uma dimensão de partição dependente do sinalizador de dimensão de partição como horizontal ou vertical. o decodificador é configurado para particionar, ao longo da dimensão predeterminada, o bloco predeterminado em partições de transformada que têm a mesma largura do bloco predeterminado perpendicular à dimensão predeterminada. além disso, o decodificador é configurado para decodificar, para cada partição de transformada, uma transformada de um resíduo de previsão; intraprever o bloco predeterminado que depende de uma ou mais amostras já reconstruídas próximas do bloco predeterminado, de maneira dependente do modo de intraconversão em código para obter um previsor para o bloco predeterminado; e reconstruir o bloco predeterminado corrigindo-se o previsor dentro de cada partição de transformada com o uso da transformada do resíduo de previsão decodificada para a respectiva partição de transformada.
BR112021017901A 2019-03-12 2020-03-11 Decodificador, codificador, métodos para decodificação e codificação, e fluxo de dados BR112021017901A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19162405 2019-03-12
PCT/EP2020/056489 WO2020182874A1 (en) 2019-03-12 2020-03-11 Implementation efficient partition-based intra coding concept

Publications (1)

Publication Number Publication Date
BR112021017901A2 true BR112021017901A2 (pt) 2021-12-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112021017901A BR112021017901A2 (pt) 2019-03-12 2020-03-11 Decodificador, codificador, métodos para decodificação e codificação, e fluxo de dados

Country Status (9)

Country Link
US (1) US11973978B2 (pt)
EP (1) EP3939261A1 (pt)
JP (2) JP7328346B2 (pt)
KR (1) KR20210135314A (pt)
CN (1) CN113711593A (pt)
BR (1) BR112021017901A2 (pt)
MX (1) MX2021010897A (pt)
TW (1) TWI758693B (pt)
WO (1) WO2020182874A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021055574A1 (en) * 2019-09-17 2021-03-25 Vid Scale, Inc. Intra sub-partitions related infra coding

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EP2733951A1 (en) * 2005-10-21 2014-05-21 Electronics and Telecommunications Research Institute Method for decoding moving picture using adaptive scanning
CN106358045B (zh) * 2010-04-13 2019-07-19 Ge视频压缩有限责任公司 解码器、解码方法、编码器以及编码方法
CN104378637B (zh) * 2011-10-18 2017-11-21 株式会社Kt 视频信号解码方法
US9807401B2 (en) * 2011-11-01 2017-10-31 Qualcomm Incorporated Transform unit partitioning for chroma components in video coding
EP2777286B1 (en) * 2011-11-11 2017-01-04 GE Video Compression, LLC Effective wedgelet partition coding
PT2805419T (pt) * 2012-01-20 2017-09-01 Ge Video Compression Llc Codificação e descodificação de coeficiente de transformada
EP2898697A4 (en) * 2012-09-24 2016-10-19 Qualcomm Inc CODING DEPTH CARD
AU2013200051B2 (en) * 2013-01-04 2016-02-11 Canon Kabushiki Kaisha Method, apparatus and system for de-blocking video data
US20140192862A1 (en) * 2013-01-07 2014-07-10 Research In Motion Limited Methods and systems for prediction filtering in video coding
US9813737B2 (en) * 2013-09-19 2017-11-07 Blackberry Limited Transposing a block of transform coefficients, based upon an intra-prediction mode
US10362310B2 (en) * 2015-10-21 2019-07-23 Qualcomm Incorporated Entropy coding techniques for display stream compression (DSC) of non-4:4:4 chroma sub-sampling
US20170155905A1 (en) * 2015-11-30 2017-06-01 Intel Corporation Efficient intra video/image coding using wavelets and variable size transform coding
TWI812414B (zh) * 2017-07-13 2023-08-11 美商松下電器（美國）知識產權公司 編碼裝置、解碼裝置及記錄媒體
EP3656127A1 (en) * 2017-07-19 2020-05-27 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method of coding of pictures
US11445203B2 (en) * 2019-01-04 2022-09-13 Qualcomm Incorporated Sub-partition intra prediction in video coding
US11523136B2 (en) * 2019-01-28 2022-12-06 Hfi Innovation Inc. Methods and apparatuses for coding transform blocks

Also Published As

Publication number Publication date
JP7328346B2 (ja) 2023-08-16
TW202042555A (zh) 2020-11-16
JP2023145703A (ja) 2023-10-11
EP3939261A1 (en) 2022-01-19
JP2022524815A (ja) 2022-05-10
US20210409765A1 (en) 2021-12-30
MX2021010897A (es) 2021-11-12
KR20210135314A (ko) 2021-11-12
TWI758693B (zh) 2022-03-21
US11973978B2 (en) 2024-04-30
WO2020182874A1 (en) 2020-09-17
CN113711593A (zh) 2021-11-26

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