MX2022015004A - Metodo de codificacion de imagenes, metodo de decodificacion de imagenes y aparatos relacionados. - Google Patents

Metodo de codificacion de imagenes, metodo de decodificacion de imagenes y aparatos relacionados.

Info

Publication number
MX2022015004A
MX2022015004A MX2022015004A MX2022015004A MX2022015004A MX 2022015004 A MX2022015004 A MX 2022015004A MX 2022015004 A MX2022015004 A MX 2022015004A MX 2022015004 A MX2022015004 A MX 2022015004A MX 2022015004 A MX2022015004 A MX 2022015004A
Authority
MX
Mexico
Prior art keywords
prediction
component
block
current encoding
image
Prior art date
Application number
MX2022015004A
Other languages
English (en)
Inventor
Hai Tang
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp 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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Publication of MX2022015004A publication Critical patent/MX2022015004A/es

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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
    • H04N19/102—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
    • H04N19/186—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
    • H04N19/10—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
    • 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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/134—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
    • H04N19/172—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
    • H04N19/182—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
    • H04N19/50—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

Se describen un método de codificación de imágenes, un método de decodificación de imágenes y aparatos relacionados; el método de decodificación de imágenes comprende: dividir una imagen y determinar un modo de predicción intracuadro de componentes de brillo del bloque de codificación actual y un modo de predicción intracuadro de componentes de cromaticidad del mismo; cuando el modo de predicción intracuadro de componentes de cromaticidad indica que se utiliza un componente de brillo del bloque de codificación actual para determinar un valor de predicción de un componente de cromaticidad del bloque de codificación actual, determinar un bloque de predicción del componente de cromaticidad del bloque de codificación actual de acuerdo con el modo de predicción intracuadro de componentes de brillo; y realizar la corrección de predicción en el bloque de predicción del componente de cromaticidad del bloque de codificación actual, para obtener un bloque de predicción corregido del componente de cromaticidad del bloque de codificación actual; de acuerdo con las modalidades de la presente solicitud, en un modo de predicción de componentes cruzados, una muestra de predicción de un componente de cromaticidad de cada píxel se corrige tomando en consideración la correlación de los píxeles adyacentes del límite en una dirección ortogonal, mejorando así la precisión de la predicción y la eficiencia de codificación.
MX2022015004A 2020-05-29 2021-04-25 Metodo de codificacion de imagenes, metodo de decodificacion de imagenes y aparatos relacionados. MX2022015004A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010482658.6A CN113747176A (zh) 2020-05-29 2020-05-29 图像编码方法、图像解码方法及相关装置
PCT/CN2021/089664 WO2021238540A1 (zh) 2020-05-29 2021-04-25 图像编码方法、图像解码方法及相关装置

Publications (1)

Publication Number Publication Date
MX2022015004A true MX2022015004A (es) 2023-01-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022015004A MX2022015004A (es) 2020-05-29 2021-04-25 Metodo de codificacion de imagenes, metodo de decodificacion de imagenes y aparatos relacionados.

Country Status (5)

Country Link
US (1) US11985309B2 (es)
CN (3) CN113747176A (es)
MX (1) MX2022015004A (es)
TW (1) TW202145787A (es)
WO (1) WO2021238540A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023116716A1 (en) * 2021-12-21 2023-06-29 Mediatek Inc. Method and apparatus for cross component linear model for inter prediction in video coding system
CN114387192B (zh) * 2021-12-22 2024-05-03 广东中星电子有限公司 图像滤波方法、装置、电子设备和计算机可读介质
CN115118982B (zh) * 2022-06-24 2024-05-24 腾讯科技（深圳）有限公司 一种视频处理方法、设备、存储介质及计算机程序产品
WO2024007165A1 (zh) * 2022-07-05 2024-01-11 Oppo广东移动通信有限公司 编解码方法、装置、编码设备、解码设备以及存储介质
CN114938449B (zh) * 2022-07-20 2023-10-27 浙江大华技术股份有限公司 帧内预测方法、图像编码方法、图像解码方法及装置

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Publication number Priority date Publication date Assignee Title
US20160105685A1 (en) * 2014-10-08 2016-04-14 Qualcomm Incorporated Boundary filtering and cross-component prediction in video coding
US10419757B2 (en) * 2016-08-31 2019-09-17 Qualcomm Incorporated Cross-component filter
KR102483942B1 (ko) * 2018-07-16 2022-12-30 후아웨이 테크놀러지 컴퍼니 리미티드 비디오 인코더, 비디오 디코더 및 대응하는 인코딩 및 디코딩 방법
CN116347109A (zh) * 2018-08-17 2023-06-27 北京字节跳动网络技术有限公司 一种处理视频数据的方法和装置
CN110971897B (zh) * 2018-09-28 2021-06-29 杭州海康威视数字技术股份有限公司 色度分量的帧内预测模式的编码、解码方法、设备和系统
CN113287311B (zh) * 2018-12-22 2024-03-12 北京字节跳动网络技术有限公司 两步交叉分量预测模式的指示
CN114025169A (zh) * 2019-03-12 2022-02-08 浙江大华技术股份有限公司 帧内色度预测模式的选择方法、图像处理设备及存储设备

Also Published As

Publication number Publication date
TW202145787A (zh) 2021-12-01
WO2021238540A1 (zh) 2021-12-02
CN113747176A (zh) 2021-12-03
US20230087855A1 (en) 2023-03-23
CN115668915A (zh) 2023-01-31
US11985309B2 (en) 2024-05-14
CN116456101A (zh) 2023-07-18

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