Multiple Active Contours Driven by Particle Swarm Optimization for Cardiac Medical Image Segmentation

Table 1

Average similarity measure with the Jaccard index, the Dice index, and the Hausdorff distance among the regions segmented by the traditional ACM, graph cut method, our proposed method (MACPSO), and the regions outlined by two experts of the set of CT images.

Comparative studies	Distance/similarity measure
	Hausdorff (H)	Jaccard’s index (J)	Dice’s index (D)
ACM versus Expert 1	7.071	0.5272	0.6904
ACM versus Expert 2	5.0	0.5	0.6666
Graph cut versus Expert 1	4.2426	0.7142	0.8333
Graph cut versus Expert 2	3.1622	0.6153	0.7619
MACPSO versus Expert 1	2.0	0.8260	0.9047
MACPSO versus Expert 2	1.4142	0.9090	0.9523