MX2022000034A - Codificacion usando intra-prediccion basada en matrices y transformadas secundarias. - Google Patents

Codificacion usando intra-prediccion basada en matrices y transformadas secundarias.

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Publication number
MX2022000034A
MX2022000034A MX2022000034A MX2022000034A MX2022000034A MX 2022000034 A MX2022000034 A MX 2022000034A MX 2022000034 A MX2022000034 A MX 2022000034A MX 2022000034 A MX2022000034 A MX 2022000034A MX 2022000034 A MX2022000034 A MX 2022000034A
Authority
MX
Mexico
Prior art keywords
prediction
intra
predetermined
matrix
prediction mode
Prior art date
Application number
MX2022000034A
Other languages
English (en)
Inventor
Tobias Hinz
Heiko Schwarz
Thomas Wiegand
Michael Schäfer
Detlev Marpe
Benjamin Bross
Mischa Siekmann
Jonathan Pfaff
Philipp Helle
Philipp Merkle
Björn Stallenberger
Martin Winken
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 MX2022000034A publication Critical patent/MX2022000034A/es

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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
    • H04N19/12—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
    • H04N19/103—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
    • H04N19/169—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
    • H04N19/50—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
    • H04N19/60—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

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  • 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

Se describen técnicas para la predicción basada en matrices de un bloque de una imagen de manera eficiente. Una modalidad se refiere a un aparato para decodificar un bloque predeterminado (18) de una imagen usando intra-predicción, configurado para seleccionar (602), con base en el flujo de datos, un modo predeterminado de intra-predicción (604) de una pluralidad (600) de modos de intra-predicción que comprende un primer conjunto (508) de modos de intra-predicción que comprenden un modo de intra-predicción DC (506) y modos de predicción angular (500), y un segundo conjunto (520) de modos de intra-predicción basados en matrices (510) de acuerdo con cada uno de los cuales un producto de matriz-vector (512) entre un vector (514) derivado de muestras de referencia (17) en una vecindad del bloque predeterminado y una matriz de predicción (516) asociada con el respectivo modo de intra-predicción basado en matrices se usa para obtener un vector de predicción (518), sobre la base de lo cual se predicen muestras del bloque predeterminado. El aparato está configurado para derivar una señal de predicción (606) para el bloque predeterminado usando el modo predeterminado de intra-predicción y seleccionar (608) un subconjunto (610) de una o más transformadas secundarias de un conjunto (612) de transformadas secundarias en de una manera dependiente del modo predeterminado de intra-predicción de modo que el subconjunto (610) no esté vacío en el caso de que el modo predeterminado de intra-predicción esté contenido en el primer conjunto (508) de modos de intra-predicción y el modo predeterminado de intra-predicción esté contenido en el segundo conjunto (520) de modos de intra-predicción basados en matrices (510). Además, el aparato está configurado para derivar (614), a partir del flujo de datos, una versión transformada (616) de un residuo de predicción para el bloque predeterminado (18), que está relacionado con una versión de dominio espacial (618) del residuo de predicción del bloque predeterminado a través de una transformada (T) definida por una concatenación de una transformada primaria (Tp) y una transformada secundaria predeterminada (Ts) del subconjunto (610) de transformadas secundarias aplicadas sobre un subconjunto (622) de coeficientes (620) de la transformación primaria, en el caso de que el modo de intra-predicción predeterminado esté contenido en el primer conjunto (508) de modos de intra-predicción y en el caso de que el modo de intra-predicción predeterminado esté contenido en el segundo conjunto (520) de modos de intra-predicción basados en matrices (510 ). El aparato está configurado para reconstruir (624) el bloque predeterminado usando la señal de predicción y el residuo de predicción para el bloque predeterminado (18).
MX2022000034A 2019-06-25 2020-06-23 Codificacion usando intra-prediccion basada en matrices y transformadas secundarias. MX2022000034A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19182423 2019-06-25
PCT/EP2020/067446 WO2020260248A1 (en) 2019-06-25 2020-06-23 Coding using matrix based intra-prediction and secondary transforms

Publications (1)

Publication Number Publication Date
MX2022000034A true MX2022000034A (es) 2022-04-06

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US (1) US20220116606A1 (es)
EP (1) EP3991406A1 (es)
JP (2) JP7477538B2 (es)
KR (1) KR20220036935A (es)
CN (1) CN114073081A (es)
BR (1) BR112021026284A2 (es)
MX (1) MX2022000034A (es)
TW (2) TW202402050A (es)
WO (1) WO2020260248A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112021022540A2 (pt) * 2019-05-10 2021-12-28 Fraunhofer Ges Forschung Aparelho para previsão com base em bloco e para codificação e decodificação de figura, seu método e fluxo contínuo de dados
EP3973700A4 (en) * 2019-06-28 2023-06-14 HFI Innovation Inc. MATRIX METHOD AND APPARATUS BASED ON INTRA PREDICTION IN IMAGE AND VIDEO PROCESSING
CN117640934A (zh) * 2019-07-12 2024-03-01 Lg电子株式会社 图像编码方法、图像解码方法以及发送方法
CN114586354A (zh) * 2019-08-22 2022-06-03 Lg 电子株式会社 基于矩阵的帧内预测设备和方法
US11616983B2 (en) * 2020-05-05 2023-03-28 Tencent America LLC Joint component secondary transform
US11310529B2 (en) * 2020-05-27 2022-04-19 Tencent America LLC Mode-dependent joint component transform
WO2023177810A1 (en) * 2022-03-16 2023-09-21 Beijing Dajia Internet Information Technology Co., Ltd. Intra prediction for video coding
WO2023197181A1 (zh) * 2022-04-12 2023-10-19 Oppo广东移动通信有限公司 解码方法、编码方法、解码器以及编码器
WO2024083238A1 (en) * 2022-10-21 2024-04-25 Mediatek Inc. Method and apparatus of matrix weighted intra prediction in video coding system

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US20160373770A1 (en) * 2015-06-18 2016-12-22 Qualcomm Incorporated Intra prediction and intra mode coding
JP2020109884A (ja) * 2017-04-28 2020-07-16 シャープ株式会社 動画像符号化装置及び動画像復号装置
EP3958561A4 (en) * 2019-04-16 2022-08-10 Panasonic Intellectual Property Corporation of America ENCODING DEVICE, DECODING DEVICE, ENCODING METHOD AND DECODING METHOD
CA3132225A1 (en) 2019-04-17 2020-10-22 Huawei Technologies Co., Ltd. An encoder, a decoder and corresponding methods of harmonizing matrix-based intra prediction and secondary transform core selection
KR20210136157A (ko) 2019-05-08 2021-11-16 엘지전자 주식회사 Mip 및 lfnst를 수행하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법

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JP2024095831A (ja) 2024-07-10
EP3991406A1 (en) 2022-05-04
TW202402050A (zh) 2024-01-01
JP2022538853A (ja) 2022-09-06
TW202106003A (zh) 2021-02-01
BR112021026284A2 (pt) 2022-03-03
WO2020260248A1 (en) 2020-12-30
US20220116606A1 (en) 2022-04-14
CN114073081A (zh) 2022-02-18
KR20220036935A (ko) 2022-03-23
JP7477538B2 (ja) 2024-05-01
TWI800739B (zh) 2023-05-01

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