Dependence of Shape-Based Descriptors and Mass Segmentation Areas on Initial Contour Placement Using the Chan-Vese Method on Digital Mammograms

Table 4

Evaluation metrics for differences in segmented areas (JSC) and boundary moments (, , and ), due to changes in the location of the initial level set contours evolved with tuneable parameters , for masses in Figure 4.

Masses	JSC				Method
A	0.98	0.0827	0.1051	0.0224	Manual	29.0	31.2	39.4
		0.1107	0.1440	0.0334	Proposed
B	0.97	0.2084	0.2783	0.0699	Manual	21.9	21.1	18.7
		0.2597	0.3440	0.0843	Proposed
C	0.99	0.1489	0.1785	0.0295	Manual	6.1	2.6	13.6
		0.1401	0.1739	0.0338	Proposed
D	0.98	0.2130	0.2568	0.0437	Manual	12.0	9.0	6.6
		0.2402	0.2811	0.0409	Proposed
E	0.98	0.1080	0.1376	0.0296	Manual	2.2	2.9	5.9
		0.1057	0.1336	0.0279	Proposed
F	0.94	0.1888	0.2192	0.0304	Manual	2.0	1.3	19.3
		0.1851	0.2220	0.0369	Proposed
G	0.94	0.2971	0.3676	0.0705	Manual	18.7	12.4	10.9
		0.2463	0.3248	0.0786	Proposed