MX2021008151A - Metodo y aparato de prediccion de bloques de croma. - Google Patents

Metodo y aparato de prediccion de bloques de croma.

Info

Publication number
MX2021008151A
MX2021008151A MX2021008151A MX2021008151A MX2021008151A MX 2021008151 A MX2021008151 A MX 2021008151A MX 2021008151 A MX2021008151 A MX 2021008151A MX 2021008151 A MX2021008151 A MX 2021008151A MX 2021008151 A MX2021008151 A MX 2021008151A
Authority
MX
Mexico
Prior art keywords
chroma
luminance
values
block
chroma block
Prior art date
Application number
MX2021008151A
Other languages
English (en)
Inventor
Haitao Yang
Yin Zhao
Xiang Ma
Fan Mu
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of MX2021008151A publication Critical patent/MX2021008151A/es

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
    • H04N19/134—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
    • H04N19/102—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
    • H04N19/169—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
    • H04N19/182—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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • 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
    • H04N19/132—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
    • H04N19/60—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

Abstract

Esta solicitud proporciona un método y un aparato de predicción de bloques de croma, y pertenece al campo de las tecnologías de codificación y decodificación de video. El método incluye: obtener valores de croma de muestras de croma a partir de ubicaciones preestablecidas de muestras vecinas de un bloque de croma; obtener, basándose en muestras vecinas de un bloque de luma correspondiente al bloque de croma, valores de luma de muestras de luma correspondientes a las muestras de croma; obtener, a partir de los valores de luma obtenidos, un primer conjunto de luma y un segundo conjunto de luma; agrupar los valores de croma en un primer conjunto de croma y un segundo conjunto de croma; determinar un coeficiente de escala en un modelo lineal basado en un valor medio de los valores de luma en el primer conjunto de luma, un valor medio de los valores de luma en el segundo conjunto de luma, un valor medio de los valores de croma en el primer conjunto de croma y un valor medio de los valores de croma en el segundo conjunto de croma; determinar, basándose en el coeficiente de escala, un factor de compensación en un modelo lineal correspondiente al bloque de croma; y determinar la información de predicción del bloque de croma basándose en el coeficiente de escala, el factor de compensación y la información de reconstrucción de luma correspondiente al bloque de croma. De esta manera, se puede mejorar la eficiencia de la predicción de bloques de croma.
MX2021008151A 2019-01-03 2019-12-10 Metodo y aparato de prediccion de bloques de croma. MX2021008151A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910005667.3A CN111405287B (zh) 2019-01-03 2019-01-03 色度块的预测方法和装置
PCT/CN2019/124399 WO2020140700A1 (zh) 2019-01-03 2019-12-10 色度块的预测方法和装置

Publications (1)

Publication Number Publication Date
MX2021008151A true MX2021008151A (es) 2021-08-11

Family

ID=71406909

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021008151A MX2021008151A (es) 2019-01-03 2019-12-10 Metodo y aparato de prediccion de bloques de croma.

Country Status (10)

Country Link
US (1) US11943451B2 (es)
EP (2) EP3907995B1 (es)
JP (2) JP7239711B2 (es)
KR (1) KR20210103573A (es)
CN (4) CN116193132A (es)
AU (1) AU2019419130A1 (es)
BR (1) BR112021013163A2 (es)
CA (1) CA3125500A1 (es)
MX (1) MX2021008151A (es)
WO (1) WO2020140700A1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020096877A1 (en) * 2018-11-05 2020-05-14 Interdigital Vc Holdings, Inc. Simplifications of coding modes based on neighboring samples dependent parametric models
US11483557B2 (en) * 2020-06-18 2022-10-25 Tencent America LLC Separate constrained directional enhancement filter
CN114066914A (zh) * 2020-07-30 2022-02-18 华为技术有限公司 一种图像处理方法以及相关设备
CN113099221B (zh) * 2021-02-22 2023-06-02 浙江大华技术股份有限公司 跨分量样点自适应补偿方法、编码方法及相关装置
WO2023107378A1 (en) * 2021-12-09 2023-06-15 Beijing Dajia Internet Information Technology Co., Ltd Method and apparatus for cross-component prediction for video coding
TW202335497A (zh) * 2021-12-29 2023-09-01 聯發科技股份有限公司 跨分量線性模型預測
JP2024006522A (ja) * 2022-07-04 2024-01-17 シャープ株式会社 予測画像生成装置、動画像復号装置、および動画像符号化装置
CN117478895A (zh) * 2022-07-19 2024-01-30 腾讯科技（深圳）有限公司 数据处理方法、装置、设备

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI257074B (en) * 2005-02-22 2006-06-21 Sunplus Technology Co Ltd Motion estimation method and system using colors information
CN105472386B (zh) * 2010-04-09 2018-09-18 Lg电子株式会社 处理视频数据的方法和装置
WO2012175003A1 (en) * 2011-06-20 2012-12-27 Mediatek Singapore Pte. Ltd. Method and apparatus of chroma intra prediction with reduced line memory
US8724711B2 (en) * 2011-07-12 2014-05-13 Intel Corporation Luma-based chroma intra prediction
US9948938B2 (en) 2011-07-21 2018-04-17 Texas Instruments Incorporated Methods and systems for chroma residual data prediction
CN103096057B (zh) * 2011-11-08 2016-06-29 华为技术有限公司 一种色度帧内预测方法和装置
CN103918269B (zh) * 2012-01-04 2017-08-01 联发科技（新加坡）私人有限公司 色度帧内预测方法及装置
WO2013169049A1 (ko) * 2012-05-10 2013-11-14 엘지전자 주식회사 인터 레이어 예측 방법 및 이를 이용하는 장치
US9736487B2 (en) * 2013-03-26 2017-08-15 Mediatek Inc. Method of cross color intra prediction
US10397607B2 (en) * 2013-11-01 2019-08-27 Qualcomm Incorporated Color residual prediction for video coding
US11025903B2 (en) * 2017-01-13 2021-06-01 Qualcomm Incorporated Coding video data using derived chroma mode
GB2571312B (en) * 2018-02-23 2020-05-27 Canon Kk New sample sets and new down-sampling schemes for linear component sample prediction
CN109005408B (zh) * 2018-08-01 2020-05-29 北京奇艺世纪科技有限公司 一种帧内预测方法、装置及电子设备
KR20210073597A (ko) * 2018-12-21 2021-06-18 삼성전자주식회사 부호화 방법 및 그 장치, 복호화 방법 및 그 장치

Also Published As

Publication number Publication date
AU2019419130A1 (en) 2021-07-29
WO2020140700A1 (zh) 2020-07-09
CN111405287B (zh) 2023-02-28
CN111919444A (zh) 2020-11-10
CN116193132A (zh) 2023-05-30
JP7239711B2 (ja) 2023-03-14
US11943451B2 (en) 2024-03-26
CN116320454A (zh) 2023-06-23
KR20210103573A (ko) 2021-08-23
BR112021013163A2 (pt) 2021-09-28
EP3907995A4 (en) 2022-02-23
US20210329261A1 (en) 2021-10-21
CN111405287A (zh) 2020-07-10
CN111919444B (zh) 2023-02-03
CA3125500A1 (en) 2020-07-09
JP2023071854A (ja) 2023-05-23
JP2022516180A (ja) 2022-02-24
EP3907995A1 (en) 2021-11-10
EP3907995B1 (en) 2024-02-21
EP4362462A1 (en) 2024-05-01

Similar Documents

Publication Publication Date Title
MX2021008151A (es) Metodo y aparato de prediccion de bloques de croma.
MY189780A (en) Method and device for encoding/decoding an image unit comprising image data represented by a luminance channel and at least one chrominance channel
HRP20180179T1 (hr) Postupak dekodiranja kroma slike
MY177654A (en) Video encoding method using offset adjustment according to classification of pixels by maximum encoding units and apparatus thereof, and video decoding method and apparatus thereof
WO2021054424A9 (en) System and method for video coding
GB2574733A (en) Improved video bitstream coding
EP2712200A3 (en) Image decoding method
MY186061A (en) A method and apparatus of encoding and decoding a color picture
ZA202106161B (en) Encoding and decoding method and device, encoder side apparatus and decoder side apparatus
MX2021001745A (es) Gestión de imágenes de referencia en codificación de video.
MY174665A (en) Method and apparatus for encoding video, and method and apparatus for decoding video
EP4307682A3 (en) Video decoding method
MY178504A (en) Method and apparatus for encoding video, and method and apparatus for decoding video
WO2009051419A3 (en) A method and an apparatus for processing a video signal
EP2945379A3 (en) Method of video decoding using intra prediction
CN105306944A (zh) 混合视频编码标准中色度分量预测方法
WO2009116745A3 (en) Method and apparatus for encoding and decoding image
CN103096092B (zh) 基于颜色空间变换进行编解码误差修正的方法和系统
GB2519033A (en) Method and apparatus for coding and decoding videos
MY172793A (en) Picture decoding device, picture decoding method and picture decoding program
CN103974063A (zh) 一种深度模型的编解码方法及视频编解码器
MY168806A (en) Linear prediction based audio coding using improved probability distribution estimation
MX2020002586A (es) Metodo y dispositivo de codificacion, y metodo y dispositivo de decodificacion.
MX2022003122A (es) Modo intra basado para croma de restriccion de tama?o.
EP4283999A3 (en) Video decoding method, and video decoder