Accurate methods for manually marking retinal vessel widths

Al-Diri, Bashir and Hunter, Andrew (2010) Accurate methods for manually marking retinal vessel widths. In: 7th European Symposium on Biomedical Engineering, 28-29 May 2010, Chaldiki, Greece.

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Abstract

This paper compares two manual measurement
techniques for measuring retinal vessel segment widths: the
kick-points technique and the edge marking technique. An image
set of 164 clear, high-resolution segments was used. The
kick-points approach uses kick points marked by observers
along interpolated cross-sectional intensity profile graphs; the
edge marking method allows observers to nominate the edges on
a zoomed-up image, and interpolates edge positions. The edgemarking
method provides more precise measurements than the
kick-points method, but these are subject to more inter-observer
variability; we speculate that this result is due to differing observer
perceptions of the edge location.

Item Type:Conference or Workshop Item (Paper)
Keywords:retinal vessel, kick points, measuring vessel widths
Subjects:G Mathematical and Computer Sciences > G400 Computer Science
Divisions:College of Science > School of Computer Science
ID Code:2806
Deposited By: Rosaline Smith
Deposited On:07 Jul 2010 22:50
Last Modified:04 Jun 2014 15:11

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