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Proceedings Paper

Retinal vessel width measurement at branching points using an improved electric field theory-based graph approach
Author(s): Xiayu Xu; Michael D. Abràmoff; Geir Bertelsen; Joseph M. Reinhardt
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Paper Abstract

An accurate and fully automatic method to measure the vessel width at branching points in fundus images is presented. This method is a graph-based method, in which an electric field theory based graph construction method is applied to specifically deal with the complicated branching patterns. The vessel centerline image is used as the initial segmentation. The branching points are detected on the vessel centerline image using a series of detection kernels. Crossing points are distinguished from branching points and excluded in this study. Electric field theory motivated graph construction method is applied to construct the graph, inspired by the non-intersecting property of the electric line of force. Of the three branches in a branching unit, the one closest to the optic disc is automatically detected as the parent branch and the other two are regarded as the daughter branches. The location of the optic disc is automatically detected based on a machine learning technique. The method was validated on a set of 50 fundus images.

Paper Details

Date Published: 24 February 2012
PDF: 8 pages
Proc. SPIE 8314, Medical Imaging 2012: Image Processing, 83144K (24 February 2012); doi: 10.1117/12.911831
Show Author Affiliations
Xiayu Xu, The Univ. of Iowa (United States)
Michael D. Abràmoff, The Univ. of Iowa (United States)
Veteran's Administration Medical Ctr. (United States)
Geir Bertelsen, Univ. of Tromsoe (Norway)
Joseph M. Reinhardt, The Univ. of Iowa (United States)

Published in SPIE Proceedings Vol. 8314:
Medical Imaging 2012: Image Processing
David R. Haynor; Sébastien Ourselin, Editor(s)

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