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Proceedings Paper

Optimal segmentation of the optic nerve head from stereo retinal images
Author(s): Michael B. Merickel Jr.; Xiaodong Wu; Milan Sonka; Michael Abramoff
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Paper Abstract

Early detection of glaucoma is essential to minimizing the risk of visual loss. It has been shown that a good predictor of glaucoma is the cup-to-disc ratio of the optic nerve head. This paper presents a highly automated method to segment the 'rim' (disc) and 'cup' from the optic nerve head in stereo images and calculate the cup-to-disc ratio. In this approach, the optic nerve head is unwrapped in polar coordinates and represented as a graph. Utilizing a novel and efficient graph searching technique for determining globally optimal closed-paths and an intelligent cost function, the rim and the cup are segmented from the stereo images. The results offer a more intuitive quantitative analysis compared to current planimetry-based techniques because the ophthalmologist can view the segmented images along with the derived cup-to-disc ratio.

Paper Details

Date Published: 13 March 2006
PDF: 8 pages
Proc. SPIE 6143, Medical Imaging 2006: Physiology, Function, and Structure from Medical Images, 61433B (13 March 2006); doi: 10.1117/12.657923
Show Author Affiliations
Michael B. Merickel Jr., The Univ. of Iowa (United States)
Xiaodong Wu, The Univ. of Iowa (United States)
Milan Sonka, The Univ. of Iowa (United States)
Michael Abramoff, The Univ. of Iowa (United States)

Published in SPIE Proceedings Vol. 6143:
Medical Imaging 2006: Physiology, Function, and Structure from Medical Images
Armando Manduca; Amir A. Amini, Editor(s)

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