Overview Of Artery And Vein Classification In Retinal Images Using Graph Based Approach

To investigate whether retinal vessel calibermeasurements on optical retinalPhotographyare affected by light and dark exposure prior to photography. Whetherthe vessel caliberchanges during an imaging sequence ,Digital optical retinal photographs whichisobtained from 32 healthyAdultsin two separate image sequences of six images during 1 min; one sequencewith of dark exposure and one with of light exposure for 10 min each of prior to imaging.Retinal arteriolar and venular caliberswere measured computer-assisted andsummarized as central retinal artery and vein equivalents (CRAE and CRVE).from that Outcome measures were difference in calibersafter prior light versus prior darkexposure alsodifference in calibre during each of thetwo imaging sequences. Wealso presenta 3D reconstruction of retinal blood vessel trees using two views of fundus images