Table 3.

Algorithms for the segmentation of the retinal blood vessel system.

Authors	Method	Database(s) used	No. of images	Performance measure
Soares et al. [61]	2D Gabor wavelet, Bayesian classification	DRIVE; STARE	60	AUC 0.9614; AUC 0.9671
Lupaşcu et al. [62]	AdaBoost-based classification	DRIVE	20	AUC 0.9561, ACC 0.9597
Chaudhuri et al. [63]	2D matched filters	non-public dataset	NA	NA
Kovács and Hajdu [64]	Template matching, contour reconstruction	DRIVE; STARE; HRF	105	ACC 0.9494; ACC 0.9610; ACC 0.9678
Annunziata et al. [65]	Hessian eigenvalue analysis, exudate inpainting	STARE; HRF	65	ACC 0.9562; ACC 0.9581