WO2020224613A1 - Procédé de calcul unifié pour interprédiction avec affinement - Google Patents

Procédé de calcul unifié pour interprédiction avec affinement Download PDF

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Publication number
WO2020224613A1
WO2020224613A1 PCT/CN2020/088927 CN2020088927W WO2020224613A1 WO 2020224613 A1 WO2020224613 A1 WO 2020224613A1 CN 2020088927 W CN2020088927 W CN 2020088927W WO 2020224613 A1 WO2020224613 A1 WO 2020224613A1
Authority
WO
WIPO (PCT)
Prior art keywords
block
shifting
neighboring samples
prediction
shift1
Prior art date
Application number
PCT/CN2020/088927
Other languages
English (en)
Inventor
Hongbin Liu
Li Zhang
Kai Zhang
Jizheng Xu
Yue Wang
Original Assignee
Beijing Bytedance Network Technology Co., Ltd.
Bytedance Inc.
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 Beijing Bytedance Network Technology Co., Ltd., Bytedance Inc. filed Critical Beijing Bytedance Network Technology Co., Ltd.
Priority to CN202080033445.3A priority Critical patent/CN113767634B/zh
Publication of WO2020224613A1 publication Critical patent/WO2020224613A1/fr

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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
    • H04N19/50—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
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • 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
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures

Abstract

Selon l'invention, un procédé de traitement de support visuel consiste à effectuer une conversion entre un bloc actuel de données de support visuel et une représentation codée correspondante du bloc de vidéo actuel, la conversion du bloc actuel consistant à calculer un gradient spatial en fonction de différences d'échantillon d'échantillons spatialement voisins et/ou un gradient temporel en fonction d'échantillons temporellement voisins associés au bloc actuel, et une technique utilisée pour calculer le gradient spatial étant la même qu'une technique utilisée pour calculer le gradient temporel.
PCT/CN2020/088927 2019-05-07 2020-05-07 Procédé de calcul unifié pour interprédiction avec affinement WO2020224613A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202080033445.3A CN113767634B (zh) 2019-05-07 2020-05-07 利用细化的帧间预测的统一计算方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNPCT/CN2019/085796 2019-05-07
CN2019085796 2019-05-07

Publications (1)

Publication Number Publication Date
WO2020224613A1 true WO2020224613A1 (fr) 2020-11-12

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PCT/CN2020/088927 WO2020224613A1 (fr) 2019-05-07 2020-05-07 Procédé de calcul unifié pour interprédiction avec affinement

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CN (1) CN113767634B (fr)
WO (1) WO2020224613A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480615B1 (en) * 1999-06-15 2002-11-12 University Of Washington Motion estimation within a sequence of data frames using optical flow with adaptive gradients
CN108352074A (zh) * 2015-12-04 2018-07-31 德州仪器公司 准参数光学流估计
CN109191514A (zh) * 2018-10-23 2019-01-11 北京字节跳动网络技术有限公司 用于生成深度检测模型的方法和装置
CN110267045A (zh) * 2019-08-07 2019-09-20 杭州微帧信息科技有限公司 一种视频处理及编码的方法、装置及可读存储介质
CN111010569A (zh) * 2018-10-06 2020-04-14 北京字节跳动网络技术有限公司 Bio中的时间梯度计算的改善

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101624059B1 (ko) * 2012-06-27 2016-05-24 가부시끼가이샤 도시바 암호화 장치 및 암호화 방법
WO2016072750A1 (fr) * 2014-11-04 2016-05-12 삼성전자 주식회사 Procédé d'encodage vidéo et appareil correspondant, et procédé de décodage vidéo et appareil correspondant, dans lesquels un décalage de bord est appliqué
CN108541375B (zh) * 2016-02-03 2022-04-12 夏普株式会社 运动图像解码装置、运动图像编码装置、以及预测图像生成装置
US11051033B2 (en) * 2017-01-04 2021-06-29 Samsung Electronics Co., Ltd. Video decoding method and apparatus and video encoding method and apparatus
US11109062B2 (en) * 2017-03-16 2021-08-31 Mediatek Inc. Method and apparatus of motion refinement based on bi-directional optical flow for video coding

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480615B1 (en) * 1999-06-15 2002-11-12 University Of Washington Motion estimation within a sequence of data frames using optical flow with adaptive gradients
CN108352074A (zh) * 2015-12-04 2018-07-31 德州仪器公司 准参数光学流估计
CN111010569A (zh) * 2018-10-06 2020-04-14 北京字节跳动网络技术有限公司 Bio中的时间梯度计算的改善
CN109191514A (zh) * 2018-10-23 2019-01-11 北京字节跳动网络技术有限公司 用于生成深度检测模型的方法和装置
CN110267045A (zh) * 2019-08-07 2019-09-20 杭州微帧信息科技有限公司 一种视频处理及编码的方法、装置及可读存储介质

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Publication number Publication date
CN113767634B (zh) 2023-06-09
CN113767634A (zh) 2021-12-07

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