文献类型：期刊文献

英文题名：A unified framework for alpha matting

作者：Lin, Xiao[1,2]; Shen, Yang[2]; Ma, Lizhuang[2]; Chen, Zhihua[3]

机构：[1] Academy of Information Technology, Luoyang Normal University, Luoyang, China; [2] Department of Computer Science, Shanghai Jiao Tong University, Shanghai, China; [3] Department of Computer Science and Engineering, East China University of Science and Technology, Shanghai, China

年份：2011

起止页码：206

外文期刊名：Proceedings - 12th International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2011

收录：EI(收录号：20114714531308)

语种：英文

外文关键词：Optical data processing

摘要：Many important alpha matting algorithms are proposed in recent years, which focus on how to solve the alpha value on image interactively. However, few papers discuss about why the border of opaque object in image is half-transparent. In this paper, we show how the optical principles produce the translucent effect on photography. We denote the matting problem in a unified form, by which form, we can analyze and compare different matting algorithm by comparing their sampling function and matting matrix. Our work can help us to propose and evaluate new matting algorithm. We also expand our framework to video matting and get an enhanced video matting algorithm. ? 2011 IEEE.