Table 1.

A comparison of the sensitivity of the system at different rank thresholds before and after clustering (also compare solid lines in Figs. 89). The filter parameters were $\{\sigma \}=\{0.2\mathrm{mm}\mathrm{,}0\mathrm{.}25\mathrm{mm}\mathrm{,}0\mathrm{.}35\mathrm{mm}\}$ and (${\mathrm{M}}_1$, ${\mathrm{M}}_2$, ${\mathrm{M}}_3$) = (0.7 mm, 0.1 mm, 0.1 mm).

Rank threshold	1	2	3	5	10	20	30
Sensitivity before clustering	0.38	0.50	0.58	0.64	0.78	0.83	0.88
Sensitivity after clustering	0.40	0.57	0.77	0.80	0.88	0.90	0.91