MX2021016011A - Decodificador, codificador y metodos que comprenden una codificacion para intra-subparticiones. - Google Patents

Decodificador, codificador y metodos que comprenden una codificacion para intra-subparticiones.

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Publication number
MX2021016011A
MX2021016011A MX2021016011A MX2021016011A MX2021016011A MX 2021016011 A MX2021016011 A MX 2021016011A MX 2021016011 A MX2021016011 A MX 2021016011A MX 2021016011 A MX2021016011 A MX 2021016011A MX 2021016011 A MX2021016011 A MX 2021016011A
Authority
MX
Mexico
Prior art keywords
intra
prediction
block
predetermined
transform
Prior art date
Application number
MX2021016011A
Other languages
English (en)
Inventor
Heiko Schwarz
Thomas Wiegand
Detlev Marpe
Valeri George
Benjamin Bross
Luxán Hernández Santiago De
Gayathri Venugopal
Jens Brandenburg
Original Assignee
Fraunhofer Ges Forschung
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Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2021016011A publication Critical patent/MX2021016011A/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
    • H04N19/103—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
    • H04N19/60—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
    • H04N19/10—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
    • 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
    • H04N19/46—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
    • H04N19/90—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
    • H04N19/96—Tree coding, e.g. quad-tree 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • 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
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

El decodificador (20) para decodificar una imagen se configura para derivar, a partir de un flujo de datos (112), en el que se codifica la imagen (110), una asignación de una imagen (110), a una granularidad de bloques (120) en los que la imagen (110) se subdivide a un conjunto (114) de tipos de predicción que comprenden intrapredicción (116) e interpredicción (118), de modo que cada bloque (120) se asigna a un tipo de predicción asociado del conjunto ( 114) de tipos de predicción, y derivar, a partir del flujo de datos (112), para cada uno de los bloques (120) intrapredichos a los que se asigna la intrapredicción (116), un modo de intrapredicción asociado (125) de un conjunto (122) de modos de intrapredicción. Para cada uno de los bloques intrapredichos predeterminados (120) el modo de intrapredicción asociado (125)de los cuales está contenido dentro de un subconjunto predeterminado (124) de modos de intrapredicción predeterminados, el decodificador se configura para derivar del flujo de datos ( 112), una información (126) sobre una partición (128) del respectivo bloque intrapredicho predeterminado (120) en particiones (130), e intrapredecir cada partición (130) del respectivo bloque intrapredicho predeterminado (120) de una manera que depende del modo de intrapredicción predeterminado (125) asignado al respectivo bloque predeterminado intrapredicho predeterminado (120). El decodificador se configurado para derivar, a partir del flujo de datos (112), para cada bloque (120), una información sobre un residuo de predicción para el bloque respectivo (120), al derivar el residuo de predicción para cada bloque intrapredicho predeterminado (120) al derivar, a partir del flujo de datos (112), para cada partición (130) del respectivo bloque intrapredicho predeterminado (120), una señal residual de predicción específica de partición (132) relacionada con una señal residual de predicción de dominio espacial (134) de la partición respectiva (130) del respectivo bloque intrapredicho predeterminado (120) a través de una transformada predeterminada (T), y al derivar, del flujo de datos (112), una información (136) que identifica la transformada predeterminada de un conjunto (138) de transformadas que incluye una primera transformada (T1) y una segunda transformada (T2) que equivale a una concatenación de una transformada primaria y una transformada secundaria (Ts) aplicadas en un subconjunto (140) de coeficientes de la transformada primaria . Además, el decodificador se configura para reconstruir cada bloque (120) usando la información sobre la predicción residual para el respectivo bloque (120) y una señal de predicción obtenida usando el tipo de predicción (125) asignado al respectivo bloque (120).
MX2021016011A 2019-06-25 2020-06-23 Decodificador, codificador y metodos que comprenden una codificacion para intra-subparticiones. MX2021016011A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP19182425 2019-06-25
EP19191601 2019-08-13
EP19199382 2019-09-24
PCT/EP2020/067549 WO2020260313A1 (en) 2019-06-25 2020-06-23 Decoder, encoder and methods comprising a coding for intra subpartitions

Publications (1)

Publication Number Publication Date
MX2021016011A true MX2021016011A (es) 2022-02-22

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MX2021016011A MX2021016011A (es) 2019-06-25 2020-06-23 Decodificador, codificador y metodos que comprenden una codificacion para intra-subparticiones.

Country Status (9)

Country Link
US (1) US20220124372A1 (es)
EP (1) EP3991407A1 (es)
JP (1) JP2022538160A (es)
KR (1) KR20220037434A (es)
CN (1) CN114097223A (es)
BR (1) BR112021026257A2 (es)
MX (1) MX2021016011A (es)
TW (1) TWI779306B (es)
WO (1) WO2020260313A1 (es)

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WO2020162737A1 (ko) 2019-02-08 2020-08-13 주식회사 윌러스표준기술연구소 이차 변환을 이용하는 비디오 신호 처리 방법 및 장치
KR20210122797A (ko) 2019-02-28 2021-10-12 주식회사 윌러스표준기술연구소 인트라 예측 기반 비디오 신호 처리 방법 및 장치
CN117640935A (zh) * 2019-07-12 2024-03-01 Lg电子株式会社 图像解码设备、图像编码设备以及发送数据的设备
BR112022005047A2 (pt) * 2019-09-20 2022-07-05 Nokia Technologies Oy Um aparelho, um método e um programa de computador para codificação e decodificação de vídeo
FI4017007T3 (fi) * 2019-09-21 2024-06-19 Lg Electronics Inc Kuvan koodausmenetelmä perustuen muunnokseen ja laite sitä varten
AU2020376689B2 (en) * 2019-10-29 2024-02-15 Lg Electronics Inc. Image coding method based on transform and apparatus therefor
WO2023197179A1 (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
CN116156170B (zh) * 2023-04-24 2024-04-16 北京中星微人工智能芯片技术有限公司 数据流的发送方法、装置、电子设备和存储介质

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FR3029055B1 (fr) * 2014-11-24 2017-01-13 Ateme Procede d'encodage d'image et equipement pour la mise en oeuvre du procede
FR3038484B1 (fr) * 2015-07-01 2017-07-28 Ateme Procede d'encodage d'image et equipement pour la mise en oeuvre du procede
KR102498725B1 (ko) * 2016-08-24 2023-02-13 소니그룹주식회사 화상 부호화 장치, 화상 부호화 방법 및 기록 매체
CN116320493A (zh) * 2016-11-28 2023-06-23 韩国电子通信研究院 用于滤波的方法和装置
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Also Published As

Publication number Publication date
CN114097223A (zh) 2022-02-25
WO2020260313A1 (en) 2020-12-30
US20220124372A1 (en) 2022-04-21
EP3991407A1 (en) 2022-05-04
TWI779306B (zh) 2022-10-01
JP2022538160A (ja) 2022-08-31
BR112021026257A2 (pt) 2022-03-03
TW202110192A (zh) 2021-03-01
KR20220037434A (ko) 2022-03-24

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