Keywords

image matting, segmentation

Abstract

Image matting is the process of extracting a soft segmentation of an object in an image as defined by the matting equation. Most current techniques focus largely on computing the alpha values of unknown pixels and treat computation of the foreground and background colors as an afterthought, if at all. However, for many applications, such as compositing an object into a new scene or deleting an object from the scene, the foreground and background colors are vital for an acceptable answer. We propose a method of solving for the foreground, background, and alpha of an unknown region in an image simultaneously. This allows for novel constraints to be placed directly on the foreground and background as well as on alpha. We show through both visual results and quantitative measurements on standard datasets that this approach produces more accurate foreground and background values at each pixel while maintaining competitive results on the alpha matte.

Original Publication Citation

B. Price, B. Morse, and S. Cohen, "Simultaneous foreground, background, and alpha estimation for image matting," in IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), June 21.

Document Type

Peer-Reviewed Article

Publication Date

2010-06-01

Permanent URL

http://hdl.lib.byu.edu/1877/2487

Publisher

IEEE

Language

English

College

Physical and Mathematical Sciences

Department

Computer Science

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