数字抠图技术综述  

A Survey on Digital Matting

作　　者：林生佑[1] 潘瑞芳[1] 杜辉[1] 石教英[2] 

机构地区：[1]浙江传媒学院传播科技系,杭州310018 [2]浙江大学CAD&CG国家重点实验室,杭州310058

出　　处：《计算机辅助设计与图形学学报》2007年第4期473-479,共7页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家自然科学基金重点项目(60033010);浙江省自然科学基金(Y105324);浙江省科技厅计划项目(2006C31065)

摘　　要：数字抠图是一种把图像的前景部分从背景中分离出来的技术,它通过用户指定图像中少量部分前景和背景区域,并根据这些提示按照一定的判定规则自动、准确地分离出所有的前景物体.回顾了该技术的历史发展过程,包括光学场景抽取、蓝屏抠图和图像合成技术,重点介绍了数字蓝屏抠图、自然图像抠图以及数字抠图技术的扩展和应用,如环境抠图、阴影抠图、视频抠图等,并对这几种技术的局限性以及发展方向做了简要的说明.Digital matting is a new technology of extracting the foreground from the background. It is meant to automatically extract all the other parts of the foreground objects based on a few user-specified parts. In this paper, its historical development is at first outlined, followed by a detailed review on the main matting technologies, including blue screen matting, natural image matting, as well as some extended technologies of matting on image, such as environment matting, shadow matting, and video matting. In the end, the currently encountered main difficulties in the field and some promising future directions are listed.

关 键 词：蓝屏抠图 自然图像抠图 环境抠图 阴影抠图 视频抠图 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]