Optic disc detection is an important task in retinal imaging as its
significance justifies whether the retina is normal or abnormal.
The optic disc represents the entrance and exit sites of vascular
and nervous structures, and its size and shape could be used in
diagnostics and treatment of diseases, such as glaucoma. Several
approaches have been proposed, the majority of which use intensity
or shape based techniques. Recently, approaches that combine
intensity, shape and information regarding vascular structures have
been used with good results. In this paper, a method that combines
information from the major blood vessels is investigated and
compared with intensity and shape based techniques. The image that
is employed to evaluate the proposed technique consists of both
healthy and unhealthy retinas. The techniques used in this
contribution result to a robust, fast and accurate technique for
detection of the optic disc.
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