Research Article

Unsupervised Cardiac Image Segmentation via Multiswarm Active Contours with a Shape Prior

Table 2

(Left ventricle) Average similarity measure with the correlation, Jaccard and Dice indices, Hausdorff distance, and the maximum cardinality similarity metric among the regions segmented by the Graph Cut method, traditional ACM, interactive Tseng method, our proposed method, and the regions outlined by experts of the MR dataset.

Comparative Similarity measure
Studies (C) (J) (D) (H) (MCSM)

Graph Cut versus experts 0.7169 0.4893 0.6571 12.6230.556
ACM versus experts 0.8608 0.5909 0.7428 9.5010.637
Tseng versus experts 0.8688 0.7500 0.8571 7.2840.0.695
Our method versus experts 0.8866 0.8421 0.9142 6.4760.711