Active contour model via multi-population particle swarm optimization

Authors:
Chun-Chieh Tseng;Jer-Guang Hsieh;Jyh-Horng Jeng
Affiliations:
Department of Electrical Engineering, National Sun Yet-Sen University, Kaohsiung 804, Taiwan;Department of Electrical Engineering, National Sun Yet-Sen University, Kaohsiung 804, Taiwan;Department of Information Engineering, I-Shou University, Kaohsiung County 840, Taiwan
Venue:
Expert Systems with Applications: An International Journal
Year:
2009

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Abstract

In this paper, the multi-population particle swarm optimization (PSO) is utilized to enhance the concavity searching capability for the control points of active contour model (ACM). In the traditional methods for ACM, each control point searches its new position in a small nearby window. Consequently, the boundary concavities cannot be searched accurately. Some improvements have been made in the past to enlarge the searching space, yet they are still time-consuming. To overcome these drawbacks, a multi-population particle swarm optimization technique is adopted in this paper to reduce the search time but in a larger searching window. In the proposed scheme, to each control point in the contour there is a corresponding swarm of particles with the best swarm particle as the new control point. The proposed optimizer not only inherits the spirit of the original PSO in each swarm but also shares information of the surrounding swarms. Experimental results demonstrate that the proposed method can improve the search of object concavities without extra computation time.