Journal of Clinical and Experimental Ophthalmology
Open Access
ISSN: 2155-9570
ISSN: 2155-9570
Rached Belgacem
Information Technology and Communication Technology and Electrical Engineering,
University of Tunis ElManar, ENSIT 5, Avenue Taha Hussein, B. P.: 56, Bab Menara, 1008 Tunis
Tunisia
Research Article
Study of the Contour and the Excavation of the Optic Nerve Head
Author(s): Rached Belgacem, Hédi Trabelsi, Ines Malek, Imed Jabri
Rached Belgacem, Hédi Trabelsi, Ines Malek, Imed Jabri
Purpose: To extract the characteristic features of glaucoma automatically and early detection of the excavation of the cup inside papilla to identify the glaucomatous from non-glaucomatous to limit the disease progression.
Design: Perspective based on literature review and clinical expertise and analysis a set of clinical retinal fundus images for ophthalmology.
Methods: To automatically extract the disc, two methods making use of an edge detection circular Hough transform method and active contours are proposed in the paper. For the cup, excavation, inspection by histogram is used to automatically detect the cup.
Results: The value of cup-to-disc ratio CDR which is more than 0.50 is used to assess a patient as a glaucomatous case and the retina images analysis shows other features.
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DOI:
10.4172/2155-9570.1000665