Hyperspectral Anomaly Detection: Comparative Evaluation in Scenes with Diverse Complexity

Table 6

Correlation coefficient and Kolmogorov-Smirnov test statistic between empirical and theoretical CDF of the Mahalanobis distance around each of the targets and the condition number of local Σ.

Name	Preprocessing	Correlation mean ± std	KS statistic mean ± std	Condition number of local Σ mean ± std
CAM	None	0.95±0.03	0.48±0.17	1.15𝑒+10±2.3𝑒+10
	SB	0.98±0.01	0.28±0.11	3.97𝑒+09±8.4𝑒+09
	KDR	0.992±0.004	0.15±0.04	8.25𝑒+08±2.6𝑒+08
	KDR (5 kcp)	0.991±0.011	0.128±0.07	6.08𝑒+01±1.04𝑒+02
OSLO1	None	0.999±0.0003	0.04±0.009	6.33𝑒+03±5.6𝑒+03
	SB	0.998±0.0008	0.068±0.01	3.02𝑒+03±2.5𝑒+03
	KDR	0.9995±0.0003	0.04±0.009	3.90𝑒+01±3.3𝑒+01
	KDR (5 kcp)	0.993±0.003	0.11±0.03	1.20𝑒+01±2.0𝑒+01
BJO	None	0.994±0.02	0.076±0.10	7.34𝑒+04±1.4𝑒+05
	SB	0.996±0.006	0.089±0.06	5.38𝑒+04±8.6𝑒+04
	SQRT + SB	0.996±0.006	0.089±0.06	5.38𝑒+04±8.6𝑒+04
OSLO2	None	0.996±0.006	0.097±0.06	3.27𝑒+04±1.0𝑒+04
	SB	0.996±0.005	0.102±0.05	2.08𝑒+04±1.8𝑒+04