Watershed segmentation with boundary curvature ratio based merging criterion
Xiaochen He, N.H.C. Yung, K. P. Chow, Francis Y. L. Chin, Ronald Chung, Kenneth K. Wong, Kenneth S. H. Tsang · 2007
This paper proposes to incorporate boundary curvature ratio, region homogeneity and boundary smoothness into a single new merging criterion to improve the oversegmentation of marker-controlled watershed segmentation algorithm. The result is a more refined segmentation result with smooth boundaries and regular shapes. To pursue a final segmentation result with higher inter-variance and lower intra-variance, an optimal number of segments could be self-determined by a proposed formula. Experimental results are presented to demonstrate the merits of this method. KEY WORDS Watershed segmentation; merging criterion; boundary smoothness; optimal number of segments 1.