. Author manuscript; available in PMC: 2010 Jul 29.

Published in final edited form as: IEEE Trans Med Imaging. 2009 Sep 15;29(1):159–168. doi: 10.1109/TMI.2009.2031324

TABLE II.

Unsigned Border Positioning Errors (Mean ± SD)

	Cup (pixel)	Cup (mm)	Rim (pixel)	Rim (mm)
k-NN + Convex vs. Ref. standard	2.621 ± 0.912	0.079 ± 0.027	2.438 ± 1.178	0.073 ± 0.035
9-k-NN + Convex vs. Ref. standard	2.525 ± 0.869	0.076 ± 0.026	2.043 ± 0.858	0.061 ± 0.026
2nd observer vs. Ref. standard	2.536 ± 1.028	0.076 ± 0.031	2.144 ± 0.804	0.064 ± 0.024