Automated measurements of retinal bifurcations

Abstract

This paper presents an analysis of the bifurcations of retinal vessels. The angles and relative diameters of blood vessels in 230 bifurcations were measured using a new automated procedure, and used to calculate the values of several features with known theoretical properties. The measurements are compared with predictions from theoretical models, and with manual measurements. The automated measurements agree with the theoretical prediction measurements with slightly different bias. The automated method can measure large number of retinal bifurcations very rapidly, and may be useful in correlating bifurcation geometry with clinical conditions. © 2009 Springer-Verlag.