Contour Extraction Based on Deformable Model and Dynamic Programming
Cheng Jun Zhao · 2016
In this paper, a new model for extraction of active contours of the quasi-circular targets in a given image which is based on edge detection and dynamic programming(DP) is proposed.In order to guarantee the detected closed contour approximating to the real contour of the target as well as possible, the DP algorithm was launched as the probability distribution of the polar image's edge is obtained by which the computational time was significantly reduced.By the utilization of the image intensity information and the balloon force, the external force in the energy-minimizing function of deformable model is synthetically designed.The theoretical analysis and experiment results demonstrated that the capability of searching a continuous and closed edge contour with the proposed method was remarkably extended compared to the other two methods.