Anisotropic virtual electric field for active contours

Authors:
Guopu Zhu;Shuqun Zhang;Qingshuang Zeng;Changhong Wang
Affiliations:
GuangDong Key Laboratory of Information Security Technology, Sun Yat-Sen University, Guangzhou 510006, China;Department of Computer Science, College of Staten Island, City University of New York, Staten Island, NY 10314, USA;Space Control and Inertial Technology Research Center, Harbin Institute of Technology, Harbin 150001, China;Space Control and Inertial Technology Research Center, Harbin Institute of Technology, Harbin 150001, China
Venue:
Pattern Recognition Letters
Year:
2008

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Abstract

A novel external force called anisotropic virtual electric field (AVEF) is proposed for active contours by incorporating the geometric information of the image edge map into a virtual electric field (VEF) model. The proposed AVEF model has the advantage of preventing active contours from moving across object boundary's weak edges with strong neighbors while keeping the desirable properties of the VEF model, such as large capture range and fast computation time. The experiments conducted on synthetic and real images show the high performance of the AVEF model on image segmentation.