在线视频会议虚拟背景人物融合工具设计与实现

Design and Implementation of a Character Integration Tool in Virtual Background for Online Video Conference

虚拟背景是一种基于前后景分离技术的运用,该技术的目的是在带有人像的图片中将人物与背景分离出来,并用新的背景替换原背景。本文在此基础上研究并应用了重光照技术使新的背景与人像的光照强度和方向等光照参数融合,以达到图像和谐化的效果。该技术目的运用在视频会议的虚拟背景功能中,实现参会人与虚拟背景在光照效果上保持一致,以达到融合的效果。

Virtual background is an application based on the foreground separation technique,whose target is to separate the character from the background in a portrait picture as well as replace the raw background with a new background.Based on the virtual background,in this paper the re⁃lighting meth⁃od is utilized to blend the new background with character lighting parameters such as lighting intensity and direction,to achieve harmonious image effect.Applying this method to the virtual background func⁃tion of video conference ensures that the participants have the consistent lighting effects with their virtual backgrounds,achieving the integration effect.