Research Article
Detection of Subclinical Diabetic Retinopathy by Fine Structure Analysis of Retinal Images
Figure 2
(a) Probability density of z-projections. (b) L1 and (c) L2 values between nondiabetic control (NC; group 1) and diabetic without retinopathy (NDR; group 2) subjects. Correctly classified images in group 1 had positive L1 values, while correctly classified images in group 2 had negative L2 values. The larger L1 value for an image in group 1 and the smaller L2 value for an image in group 2 are indicators of more likely true positive and more likely true negative discrimination, respectively.
| (a) |
| (b) |
| (c) |