Title :
A Unified Framework for Alpha Matting
Author :
Lin, Xiao ; Shen, Yang ; Ma, Lizhuang ; Chen, Zhihua
Author_Institution :
Acad. of Inf. Technol., Luoyang Normal Univ., Luoyang, China
Abstract :
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.
Keywords :
computer graphics; digital photography; image segmentation; alpha matting algorithms; half-transparent image; opaque matting object; photography; translucent effect; video matting; Bayesian methods; Educational institutions; Equations; Image color analysis; Mathematical model; Photography; Robustness; Alpha matting algorithm; Computer vision; Image processing; Unified Framework; Video matting;
Conference_Titel :
Computer-Aided Design and Computer Graphics (CAD/Graphics), 2011 12th International Conference on
Conference_Location :
Jinan
Print_ISBN :
978-1-4577-1079-7
DOI :
10.1109/CAD/Graphics.2011.54
