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. 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

Fig. 9.

Fig. 9

Example of the worst segmentation performance case [unsigned error for the optic disc cup = 4.19 pixels (0.126 mm) and unsigned error for the neuroretinal rim = 3.30 pixels (0.099 mm)]. From top to bottom, left stereo color photograph, X-Z image at the center of the OCT volume and 3-D rendering of the top intraretinal surface mapped with the left stereo color photograph. (a) Without any overlap. (b) Overlapped with the result from the 9-k-NN classifier with convex hull-based fitting. The optic disc cup is in red and the neuroretinal rim is in green. (c) Overlapped with the reference standard. (d) Overlapped with the manual segmentation from the second observer