TABLE V.

Overall performance of the proposed lung segmentation approach averaged over different data sets and averaged overall. Mean and standard deviation (std) is provided for each index.

Data set		DSC		HD (mm)		Sensitivity		Specificity
		Observer-I	Observer-II	Observer-I	Observer-II	Observer-I	Observer-II	Observer-I	Observer-II
HPIV	mean	0.9542	0.9647	33.5875	17.8705	0.9978	0.8688	0.9427	0.9661
	std	0.0121	0.0241	7.0262	7.5309	0.0010	0.1966	0.0422	0.0338
NTB	mean	0.9728	0.9714	15.7875	14.0238	0.9886	0.9991	0.9779	0.9362
	std	0.0086	0.0107	10.8789	10.8513	0.0240	0.0019	0.0230	0.0404
DAH	mean	0.9102	0.9091	15.8562	14.6573	0.9592	0.9954	0.8943	0.9027
	std	0.0519	0.5794	8.2817	9.3531	0.0195	0.0039	0.1045	0.1264
TB Data	mean	0.9681	0.9767	21.6639	18.4931	0.9324	0.9874	0.9012	0.8884
	std	0.0274	0.0055	18.3700	12.5297	0.0195	0.0143	0.1054	0.0831
H1N1	mean	0.9222	0.9191	15.8562	12.2321	0.9556	0.9923	0.9018	0.9038
	std	0.0432	0.0082	8.2817	9.3131	0.0112	0.0011	0.1267	0.1323
Exact	mean	0.9897	0.9878	20.5478	21.740	0.9972	0.9987	0.9890	0.9667
	std	0.0040	0.0068	17.8197	17.6766	0.0024	0.0181	0.0066	0.0392
Control	mean	0.9903	0.9911	8.3671	7.5691	0.999	0.9981	0.9884	0.9898
	std	0.0018	0.0021	6.1891	7.2151	0.0037	0.0023	0.0066	0.0032
Total	mean	0.9595	0.9627	19.6467	18.0054	0.9684	0.9728	0.9297	0.9234
	std	0.0034	0.1058	12.8448	12.0798	0.0163	0.0475	0.0068	0.0667