DETECTION OF CROSSOVER & BIFURCATION POINTS ON A RETINAL FUNDUS IMAGE BY ANALYZING NEIGHBORHOOD CONNECTIVITY OF NON-VASCULAR REGIONS AROUND A JUNCTION POINT

Harsh Fatepuria, Govind Singhania, Nishit Shah, Rahul Singh, Nilanjana Dutta Roy

Abstract: Over the last few decades, analysis of retinal vascular images has gained its popularity among the cyber scientists. Retina is unique in nature because of its most important feature, bifurcation & crossover points, serving reliable authentication basis. Using these two points many problem of authentication could be handled easily. Literature has shown that in a retinal vascular structure, bifurcation& crossover points need to be separated for the purpose of authentication. With this motivation in mind, we propose a novel method to segregate vascular bifurcation points from crossover points in any retinal image by analyzing neighborhood connectivity of nonvascular regions around a junction point on retinal blood vessels.

Keywords: Retinal vessel analysis, retinal blood vessels, bifurcation and crossover point’s detection.

DOI: https://doi.org/10.15623/ijret.2014.0303090