MX2021006562A - Codificador, decodificador y métodos para mejorar una robustez para el cálculo de los parámetros de modelo lineal de componentes cruzados. - Google Patents

Codificador, decodificador y métodos para mejorar una robustez para el cálculo de los parámetros de modelo lineal de componentes cruzados.

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Publication number
MX2021006562A
MX2021006562A MX2021006562A MX2021006562A MX2021006562A MX 2021006562 A MX2021006562 A MX 2021006562A MX 2021006562 A MX2021006562 A MX 2021006562A MX 2021006562 A MX2021006562 A MX 2021006562A MX 2021006562 A MX2021006562 A MX 2021006562A
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MX
Mexico
Prior art keywords
luma
samples
decoder
current block
encoder
Prior art date
Application number
MX2021006562A
Other languages
English (en)
Inventor
Heiko Schwarz
Thomas Wiegand
Christian Helmrich
Detlev Marpe
Original Assignee
Fraunhofer Ges Forschung
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Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2021006562A publication Critical patent/MX2021006562A/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
    • H04N19/105—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
    • H04N19/169—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
    • H04N19/102—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
    • H04N19/10—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
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/186—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 colour or a chrominance component
    • 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
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal 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
    • H04N19/50—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

Landscapes

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

Abstract

La presente invención se refiere a un decodificador (20) para decodificación basada en bloques de datos de imágenes de una imagen (12'), el decodificador (20) se configura para decodificar un bloque actual (80, 82, 84) de la imagen (12') al determinar de un primer conjunto de muestras de luma y un segundo conjunto de muestras de luma en un entorno del bloque actual (80, 82, 84), el primer conjunto de muestras de luma que tiene valores de luma más pequeños que el segundo conjunto de muestras de luma, que ajusta una línea recta (43) que tiene una función lineal a través de primeros pares de muestras de luma-croma (A, A ') y segundos pares de muestras de luma-croma (B, B'), en donde los primeros pares de muestras de luma-croma (A, A') se determinan con base en el primer conjunto de muestras de luma y las primeras muestras de croma correspondientes en el entorno del bloque actual (80, 82, 84), y en donde los segundos pares de muestras de luma-croma (B, B') se determinan con base en el segundo conjunto de muestras de luma-croma y las muestras de croma correspondientes en el entorno actual (A, 82, 84), y se predicen las muestras de croma actuales (80, 82, 84), utilizando la función lineal de luma-croma. La presente invención se refiere además a un codificador respectivo (10) y métodos correspondientes para codificación y decodificación.
MX2021006562A 2018-12-07 2019-12-06 Codificador, decodificador y métodos para mejorar una robustez para el cálculo de los parámetros de modelo lineal de componentes cruzados. MX2021006562A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18211107 2018-12-07
PCT/EP2019/083999 WO2020115282A1 (en) 2018-12-07 2019-12-06 Encoder, decoder amd methods for enhancing a robustness for calculation of cross-component linear model parameters

Publications (1)

Publication Number Publication Date
MX2021006562A true MX2021006562A (es) 2021-08-16

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Family Applications (1)

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MX2021006562A MX2021006562A (es) 2018-12-07 2019-12-06 Codificador, decodificador y métodos para mejorar una robustez para el cálculo de los parámetros de modelo lineal de componentes cruzados.

Country Status (9)

Country Link
US (2) US11973961B2 (es)
EP (1) EP3891976A1 (es)
JP (2) JP2022514824A (es)
KR (1) KR20210096672A (es)
CN (2) CN118803261A (es)
BR (1) BR112021010886A2 (es)
MX (1) MX2021006562A (es)
TW (2) TWI829056B (es)
WO (1) WO2020115282A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020149770A1 (en) * 2019-01-18 2020-07-23 Huawei Technologies Co., Ltd. Method and apparatus of local illumination compensation for predictive coding
WO2022119254A1 (ko) * 2020-12-04 2022-06-09 엘지전자 주식회사 포인트 클라우드 데이터 전송 방법, 포인트 클라우드 데이터 전송 장치, 포인트 클라우드 데이터 수신 방법 및 포인트 클라우드 데이터 수신 장치
CN117426088A (zh) * 2021-09-17 2024-01-19 Oppo广东移动通信有限公司 视频编解码方法、设备、系统、及存储介质
CN118202651A (zh) * 2021-11-01 2024-06-14 联发科技（新加坡）私人有限公司 视频编解码系统中基于交叉分量线性模型的预测方法及装置
CN117813824A (zh) * 2021-11-17 2024-04-02 英特尔公司 利用快速低时延比特流大小控制的视频编码的方法和系统
WO2023097694A1 (zh) * 2021-12-03 2023-06-08 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
US12041260B2 (en) * 2022-01-31 2024-07-16 Tencent America LLC Adaptive parameter selection for cross-component prediction in image and video compression
WO2024010430A1 (ko) * 2022-07-07 2024-01-11 주식회사 윌러스표준기술연구소 선형 모델을 이용한 비디오 신호 처리 방법 및 이를 위한 장치
WO2024007825A1 (en) * 2022-07-07 2024-01-11 Mediatek Inc. Method and apparatus of explicit mode blending in video coding systems

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9288500B2 (en) * 2011-05-12 2016-03-15 Texas Instruments Incorporated Luma-based chroma intra-prediction for video coding
US9693070B2 (en) * 2011-06-24 2017-06-27 Texas Instruments Incorporated Luma-based chroma intra-prediction for video coding
CN109218730B (zh) * 2012-01-19 2023-07-28 华为技术有限公司 用于lm帧内预测的参考像素缩减
EP4404572A3 (en) * 2015-07-08 2024-10-16 InterDigital Madison Patent Holdings, SAS Enhanced chroma coding using cross plane filtering
US10484712B2 (en) * 2016-06-08 2019-11-19 Qualcomm Incorporated Implicit coding of reference line index used in intra prediction
US10652575B2 (en) * 2016-09-15 2020-05-12 Qualcomm Incorporated Linear model chroma intra prediction for video coding
WO2018131838A1 (ko) * 2017-01-11 2018-07-19 엘지전자 주식회사 영상 코딩 시스템에서 인트라 예측에 따른 영상 디코딩 방법 및 장치
US11025903B2 (en) * 2017-01-13 2021-06-01 Qualcomm Incorporated Coding video data using derived chroma mode
WO2019066384A1 (ko) * 2017-09-26 2019-04-04 삼성전자 주식회사 크로스-성분 예측에 의한 비디오 복호화 방법 및 장치, 크로스-성분 예측에 의한 비디오 부호화 방법 및 장치
CA3213840A1 (en) * 2018-07-16 2020-01-23 Huawei Technologies Co., Ltd. Video encoder, video decoder, and corresponding encoding and decoding methods
US20200025456A1 (en) 2018-07-17 2020-01-23 Haier Us Appliance Solutions, Inc. Rotating heat exchanger with tube coil

Also Published As

Publication number Publication date
KR20210096672A (ko) 2021-08-05
CN113396584A (zh) 2021-09-14
BR112021010886A2 (pt) 2021-08-31
TWI829056B (zh) 2024-01-11
JP2023179709A (ja) 2023-12-19
US20210289215A1 (en) 2021-09-16
US11973961B2 (en) 2024-04-30
TWI754188B (zh) 2022-02-01
TW202243471A (zh) 2022-11-01
CN118803261A (zh) 2024-10-18
JP2022514824A (ja) 2022-02-16
US20240187612A1 (en) 2024-06-06
TW202044829A (zh) 2020-12-01
CN113396584B (zh) 2024-08-27
WO2020115282A1 (en) 2020-06-11
EP3891976A1 (en) 2021-10-13

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