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1. WO2022001508 - VIDEO SPECIAL EFFECT PROCESSING METHOD AND APPARATUS, AND ELECTRONIC DEVICE

Publication Number WO/2022/001508
Publication Date 06.01.2022
International Application No. PCT/CN2021/095994
International Filing Date 26.05.2021
IPC
H04N 21/239 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
239Interfacing the upstream path of the transmission network, e.g. prioritizing client requests
H04N 21/44 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to MPEG-4 scene graphs
H04N 21/4402 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to MPEG-4 scene graphs
4402involving reformatting operations of video signals for household redistribution, storage or real-time display
H04N 21/478 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
47End-user applications
478Supplemental services, e.g. displaying phone caller identification or shopping application
H04N 5/262 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
262Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects
Applicants
  • 腾讯科技(深圳)有限公司 TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED [CN]/[CN]
Inventors
  • 齐国鹏 QI, Guopeng
  • 陈仁健 CHEN, Renjian
Agents
  • 北京派特恩知识产权代理有限公司 CHINA PAT INTELLECTUAL PROPERTY OFFICE
Priority Data
202010599847.128.06.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) VIDEO SPECIAL EFFECT PROCESSING METHOD AND APPARATUS, AND ELECTRONIC DEVICE
(FR) PROCÉDÉ ET APPAREIL DE TRAITEMENT D’EFFETS SPÉCIAUX VIDÉO, ET DISPOSITIF ÉLECTRONIQUE
(ZH) 视频特效的处理方法、装置以及电子设备
Abstract
(EN) The present application provides a video special effect processing method and apparatus, an electronic device, and a computer readable storage medium. The method comprises: obtaining a video special effect file, and extracting a time stretching strategy from the video special effect file; obtaining a target playback duration that needs to be achieved when the video special effect file is applied to a designed scene, wherein the target playback duration is different from the original playback duration of the video special effect file; determining a special effect frame, corresponding to a target time axis, in the video special effect file according to the time stretching strategy, wherein the length of the target time axis is consistent with the target playback duration; and performing rendering according to the special effect frame corresponding to the target time axis to obtain a target video special effect conforming to the target playback duration.
(FR) La présente demande concerne un procédé et un appareil de traitement d’effets spéciaux vidéo, un dispositif électronique et un support de stockage lisible par ordinateur. Le procédé comprend : l’obtention d’un fichier d’effet spécial vidéo et le fait d’extraire, du fichier d’effet spécial vidéo, une stratégie d’étirement du temps ; l’obtention d’une durée de lecture cible qui doit être obtenue lorsque le fichier d’effet spécial vidéo est appliqué à une scène souhaitée, la durée de lecture cible étant différente de la durée de lecture originale du fichier d’effet spécial vidéo ; la détermination d’une trame d’effet spécial, correspondant à un axe des temps cible, dans le fichier d’effet spécial vidéo selon la stratégie d’étirement du temps, la longueur de l’axe des temps cible étant cohérente avec la durée de lecture cible ; et la réalisation d’un rendu selon la trame d’effet spécial correspondant à l’axe des temps cible pour obtenir un effet spécial vidéo cible conforme à la durée de lecture cible.
(ZH) 本申请提供了一种视频特效的处理方法、装置、电子设备及计算机可读存储介质;方法包括:获取视频特效文件,并从所述视频特效文件中提取时长伸缩策略;获取将所述视频特效文件应用于设计场景时需要实现的目标播放时长,其中,所述目标播放时长区别于所述视频特效文件的原始播放时长;根据所述时长伸缩策略,确定所述视频特效文件中与目标时间轴对应的特效帧;其中,所述目标时间轴的长度与所述目标播放时长一致;根据与所述目标时间轴对应的特效帧进行渲染,得到符合所述目标播放时长的目标视频特效。
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