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Optical Engineering

Adaptive pressure force—a new external force for the snake model
Author(s): Qihe Li; Yupin Luo; Deyun Xiao
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Paper Abstract

The snake model, which is well known in the domain of image segmentation, suffers from the problem that the result is heavily sensitive to the initialization, though many remedies (pressure force, gradient vector flow, etc.) have been proposed. In this paper, a new external force, called the adaptive pressure force, which can alternate adaptively between inflation and shrinkage according to the position of the contour, is presented. It can solve the problem of initialization very effectively. Besides, with the new external force, the problems of leakage of weak edges and poor convergence to concave boundaries can also be solved. Experiments demonstrate its effectiveness and robustness.

Paper Details

Date Published: 1 May 2008
PDF: 7 pages
Opt. Eng. 47(5) 057006 doi: 10.1117/1.2931466
Published in: Optical Engineering Volume 47, Issue 5
Show Author Affiliations
Qihe Li, Tsinghua Univ. (China)
Yupin Luo, Tsinghua Univ. (China)
Deyun Xiao, Tsinghua Univ. (China)

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