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

fYear

2011

fDate

15-17 Sept. 2011

Firstpage

206

Lastpage

212

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CAD/Graphics.2011.54

Filename

6062789