WO2016065538A1 - Prédiction de composantes croisées guidée - Google Patents

Prédiction de composantes croisées guidée Download PDF

Info

Publication number
WO2016065538A1
WO2016065538A1 PCT/CN2014/089716 CN2014089716W WO2016065538A1 WO 2016065538 A1 WO2016065538 A1 WO 2016065538A1 CN 2014089716 W CN2014089716 W CN 2014089716W WO 2016065538 A1 WO2016065538 A1 WO 2016065538A1
Authority
WO
WIPO (PCT)
Prior art keywords
prediction
component
pred
resi
information
Prior art date
Application number
PCT/CN2014/089716
Other languages
English (en)
Inventor
Han HUANG
Kai Zhang
Original Assignee
Mediatek Singapore Pte. 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 Mediatek Singapore Pte. Ltd. filed Critical Mediatek Singapore Pte. Ltd.
Priority to PCT/CN2014/089716 priority Critical patent/WO2016065538A1/fr
Priority to CA2964324A priority patent/CA2964324C/fr
Priority to CN201580058756.4A priority patent/CN107079166A/zh
Priority to US15/519,181 priority patent/US20170244975A1/en
Priority to KR1020207012648A priority patent/KR20200051831A/ko
Priority to EP15855903.9A priority patent/EP3198874A4/fr
Priority to SG11201703014RA priority patent/SG11201703014RA/en
Priority to PCT/CN2015/092168 priority patent/WO2016066028A1/fr
Priority to KR1020177013692A priority patent/KR20170071594A/ko
Publication of WO2016065538A1 publication Critical patent/WO2016065538A1/fr

Links

Images

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
    • H04N19/169—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

Definitions

  • the invention relates generally to image and video processing.
  • the presented invention relates to image and video coding.
  • Cross-component prediction estimates the chroma samples by linear combination of the luma samples, as described in equation (1) .
  • P C and P L represent chroma samples and luma samples, respectively.
  • ⁇ and ⁇ are two parameters.
  • the LM mode is proposed in [1] for intra prediction coding, in which the neighboring reconstructed samples are used to estimate the two parameters.
  • the prediction block is used to derive the parameters for cross-component prediction.
  • Fig.1 is a diagram illustrating the concept of guided cross-component prediction using prediction block.
  • the proposed method is shown in Fig.1.
  • the prediction block is used to derive a set of parameters, and the parameters are used for cross-component prediction in current block. Therefore, the prediction block acts as a guide.
  • the reconstructed signal for component X is calculated as Pred X +Resi' X +f (Resi Z ) .
  • Component Z is coded/decoded before component X.
  • the function f is derived by analyzing Pred X and Pred Z , where Pred X and Pred Z are the prediction signals for component X and component Z respectively.
  • the subsampled prediction block is used for parameters estimation.
  • the filtered motion compensation prediction block is used for parameters estimation.
  • the filter can be a smooth filter.
  • subsample Z component is used in the case when Z component has larger resolution.
  • a flag is coded to indicate whether residual prediction is applied.
  • the flag is coded for each X component separately or only one flag is coded for all X components.
  • the flag is only coded when Z residual signal is significant, i.e. Z residual is not all zero.
  • the flag is inherited from merge mode.
  • the flag is derived by its merge candidate, thus the flag is not explicit coded.
  • the flag is inherited from the reference block referred by motion vector, disparity vector or intra block copy displacement vector.
  • (x, y) be the location of the top-left sample of current block
  • W and H be the width and height of current block
  • (u, v) be the displacement vector
  • the referenced block is located at (x+u, y+v) or (x+W/2+u, y+H/2+v) .
  • the quantization parameter (QP) for chroma component is increased by N when chroma residual prediction is applied.
  • N can be 0, 1, 2, 3, or any other predefined integer numbers.
  • N can also be coded at SPS, VPS, APS or slice header, et al.
  • the proposed residual prediction is applied in CTU (coding tree unit) , LCU (largest coding unit) , CU (coding unit) level, PU (prediction unit) level, or TU (transform unit) level.
  • the flag is signaled at CTU, LCU, CU, PU, sub-PU, or TU level accordingly.
  • the flag is signaled at CU level, but the proposed residual prediction method is applied at CU, PU, TU or sub-PU level.
  • component X and component Z can be selected from any color space, including but not limited to: Y, U, V, Cb, Cr, R, G, B.
  • X is Cb and Z is Y.
  • X is Cr and Z is Y.
  • X is Y and Z is Cb.
  • X is Y and Z is Cr.
  • X is Y and Z is Cb and Cr.
  • the guided cross component prediction method can be applied for different kinds of video format, YUV444, YUV420, YUV422, RGB, BGR, et al.
  • an embodiment of the present invention can be a circuit integrated into a video compression chip or program codes integrated into video compression software to perform the processing described herein.
  • An embodiment of the present invention may also be program codes to be executed on a Digital Signal Processor (DSP) to perform the processing described herein.
  • DSP Digital Signal Processor
  • the invention may also involve a number of functions to be performed by a computer processor, a digital signal processor, a microprocessor, or field programmable gate array (FPGA) .
  • processors can be configured to perform particular tasks according to the invention, by executing machine-readable software code or firmware code that defines the particular methods embodied by the invention.
  • the software code or firmware codes may be developed in different programming languages and different format or style.
  • the software code may also be compiled for different target platform.
  • different code formats, styles and languages of software codes and other means of configuring code to perform the tasks in accordance with the invention will not depart from the spirit and scope of the invention.

Landscapes

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

Abstract

Des méthodes de prédiction de composantes croisées guidée sont proposées. Au lieu de signaler explicitement les paramètres de prédiction de composantes croisées dans un bloc courant, la corrélation de composantes croisées de bloc de prédiction est exploitée pour dériver les paramètres.
PCT/CN2014/089716 2014-10-28 2014-10-28 Prédiction de composantes croisées guidée WO2016065538A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
PCT/CN2014/089716 WO2016065538A1 (fr) 2014-10-28 2014-10-28 Prédiction de composantes croisées guidée
CA2964324A CA2964324C (fr) 2014-10-28 2015-10-19 Procede de prediction de composant transversal guide pour codage video
CN201580058756.4A CN107079166A (zh) 2014-10-28 2015-10-19 用于视频编码的引导交叉分量预测的方法
US15/519,181 US20170244975A1 (en) 2014-10-28 2015-10-19 Method of Guided Cross-Component Prediction for Video Coding
KR1020207012648A KR20200051831A (ko) 2014-10-28 2015-10-19 비디오 코딩을 위한 가이드된 크로스-컴포넌트 예측 방법
EP15855903.9A EP3198874A4 (fr) 2014-10-28 2015-10-19 Procédé de prédiction de composant transversal guidé pour codage vidéo
SG11201703014RA SG11201703014RA (en) 2014-10-28 2015-10-19 Method of guided cross-component prediction for video coding
PCT/CN2015/092168 WO2016066028A1 (fr) 2014-10-28 2015-10-19 Procédé de prédiction de composant transversal guidé pour codage vidéo
KR1020177013692A KR20170071594A (ko) 2014-10-28 2015-10-19 비디오 코딩을 위한 가이드된 크로스-컴포넌트 예측 방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/089716 WO2016065538A1 (fr) 2014-10-28 2014-10-28 Prédiction de composantes croisées guidée

Publications (1)

Publication Number Publication Date
WO2016065538A1 true WO2016065538A1 (fr) 2016-05-06

Family

ID=55856358

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/089716 WO2016065538A1 (fr) 2014-10-28 2014-10-28 Prédiction de composantes croisées guidée

Country Status (1)

Country Link
WO (1) WO2016065538A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018009361A1 (fr) * 2016-07-05 2018-01-11 Cisco Technology, Inc. Amélioration de la prédiction dans la compression d'image et de vidéo
CN113273203A (zh) * 2018-12-22 2021-08-17 北京字节跳动网络技术有限公司 两步交叉分量预测模式
WO2024010832A1 (fr) * 2022-07-05 2024-01-11 Beijing Dajia Internet Information Technology Co., Ltd. Procédés et appareil de compensation de mouvement de chrominance à l'aide d'un filtrage à composantes croisées adaptatif

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1497985A (zh) * 2002-09-30 2004-05-19 ���ǵ�����ʽ���� 图像编码方法和装置以及图像解码方法和装置
CN1543222A (zh) * 2003-11-05 2004-11-03 武汉大学 基于dct空间的多路画面混合方法
CN101568036A (zh) * 2005-10-11 2009-10-28 华为技术有限公司 对空间分层编码视频图像的上采样方法及其系统
CN101883286A (zh) * 2010-06-25 2010-11-10 北京中星微电子有限公司 运动估计中的校准方法及装置、运动估计方法及装置
WO2013113217A1 (fr) * 2012-01-31 2013-08-08 华为技术有限公司 Procédé et dispositif de décodage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1497985A (zh) * 2002-09-30 2004-05-19 ���ǵ�����ʽ���� 图像编码方法和装置以及图像解码方法和装置
CN1543222A (zh) * 2003-11-05 2004-11-03 武汉大学 基于dct空间的多路画面混合方法
CN101568036A (zh) * 2005-10-11 2009-10-28 华为技术有限公司 对空间分层编码视频图像的上采样方法及其系统
CN101883286A (zh) * 2010-06-25 2010-11-10 北京中星微电子有限公司 运动估计中的校准方法及装置、运动估计方法及装置
WO2013113217A1 (fr) * 2012-01-31 2013-08-08 华为技术有限公司 Procédé et dispositif de décodage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018009361A1 (fr) * 2016-07-05 2018-01-11 Cisco Technology, Inc. Amélioration de la prédiction dans la compression d'image et de vidéo
CN113273203A (zh) * 2018-12-22 2021-08-17 北京字节跳动网络技术有限公司 两步交叉分量预测模式
CN113273203B (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
WO2024010832A1 (fr) * 2022-07-05 2024-01-11 Beijing Dajia Internet Information Technology Co., Ltd. Procédés et appareil de compensation de mouvement de chrominance à l'aide d'un filtrage à composantes croisées adaptatif

Similar Documents

Publication Publication Date Title
US11546613B2 (en) Method and apparatus for adaptive motion vector precision
US11234002B2 (en) Method and apparatus for encoding and decoding a texture block using depth based block partitioning
US10104378B2 (en) Residual colour transform signalled at sequence level for specific coding modes
US20190045184A1 (en) Method and apparatus of advanced intra prediction for chroma components in video coding
KR102576562B1 (ko) 통합된 인트라 블록 카피 및 인터 예측 모드
WO2016115981A1 (fr) Procédé de codage vidéo destiné à des composants de chrominance
WO2020228578A1 (fr) Procédé et appareil de dérivation de liste de modes de luminance les plus probables pour un codage vidéo
WO2016066028A1 (fr) Procédé de prédiction de composant transversal guidé pour codage vidéo
CN107079165B (zh) 使用预测残差的视频编码方法及装置
WO2016008157A1 (fr) Procédés de compensation de mouvement faisant appel au modèle de mouvement d'ordre élevé
US20130039426A1 (en) Video decoder and a video encoder using motion-compensated prediction
CN115211113A (zh) 多参数模型的帧内预测
WO2016065538A1 (fr) Prédiction de composantes croisées guidée
WO2015192372A1 (fr) Procédé simplifié pour la compensation d'éclairage dans le codage vidéo 3d et multivues
WO2023116716A1 (fr) Procédé et appareil pour modèle linéaire de composante transversale pour une prédiction inter dans un système de codage vidéo
WO2023116706A1 (fr) Procédé et appareil pour modèle linéaire à composantes croisées avec de multiples modes intra d'hypothèses dans un système de codage vidéo
TWI752488B (zh) 視訊編解碼之方法和裝置
TWI839923B (zh) 視頻編解碼系統中基於交叉分量線性模型的預測方法及裝置
WO2023072121A1 (fr) Procédé et appareil de prédiction basée sur un modèle linéaire inter-composantes dans un système de codage vidéo
WO2016165122A1 (fr) Décalage de prédiction inter
WO2023024712A1 (fr) Procédé et appareil de codage conjoint pour des composants multicolores dans un système de codage vidéo
WO2016070363A1 (fr) Fusion à décalage d'interprédiction
WO2015100732A1 (fr) Procédé de remplissage pour copie intra de blocs
WO2014047781A1 (fr) Procédés de prédiction résiduelle entre vues

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14905222

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14905222

Country of ref document: EP

Kind code of ref document: A1