Automatic Segmentation of Optic Disc and Cup in Retinal Fundus Images Using Improved Two-Layer Level Set Method

Table 1

Comparison of segmentation performance with different methods.

Method	Average overlapping ratio of OD (%)	Average overlapping ratio of OC (%)
Multiphase C-V method	62.33	60.04
DR2LS	63.21	61.56
DR2LS with EC	68.82	63.48
DRLSEC without EC	67.70	64.96
DRLSEC	72.16	66.45