Retinal vessel labeling method

An artery/vein classification of retinal vessels is proposed. In a preliminary step in the image of thinned vessel network vessel landmarks are extracted and classified as branching and crossover points. Using the classification result a vascular graph is generated. Then in conjunction with information provided by original RGB image analysis the vessel graph is processed and filtered in order to facilitate the further step. A stratified graph edge labeling procedure is proposed to finally get the artery/vein map.