Table 3.

The template correlation coefficients of each position in Z-axis scan.

Position (mm)	-1.375	-1.25	-1.125	-1.00	-0.875	-0.75	-0.625	-0.50	-0.375	-0.25
n	17	21	27	38	42	42	42	42	42	42
Mean	0.987	0.984	0.989	0.980	0.987	0.988	0.989	0.991	0.994	0.995
± SD	0.008	0.015	0.008	0.013	0.013	0.010	0.013	0.007	0.005	0.005
Position (mm)	-0.125	0.0	0.125	0.25	0.375	0.5	0.625	0.75	0.875	1.00
n	42	42	42	42	42	39	34	26	21	13
Mean	0.995	1.00	0.996	0.989	0.984	0.978	0.971	0.967	0.964	0.964
± SD	0.005	0.00	0.003	0.010	0.017	0.019	0.031	0.027	0.042	0.032