Figure 1.
New vessels examples: (a) New vessels elsewhere (NVE). (b) New vessels on disc (NVD).
Figure 2.
(a) the first column is original images; (b) the 2nd column is original images with discarded regions of NVE/NVD and (c) the 3rd column is the discarded regions of NVE/NVD.
Figure 3.
The baseline structure of the new vessel-detection in retinal image analysis.
Figure 4.
Retinal image after preprocessing; (a) original green channel image; (b) enhanced/preprocessed image; (c) vessels extracted image.
Figure 5.
Non-redundant region (Ω) of computation of the bispectrum for real signals. Parameters are calculated from this region.
Table 1.
Results of neovascularization detection on retinal images.
Table 2.
Comparison of neovascularization detection methods.