Abstract
We propose a method using Gabor filters and phase portraits to locate automatically the optic disc (OD) in fundus images of the retina. Based on the property that the OD appears as the focal point of convergence of the blood vessels of the retina, the method includes detection of the blood vessels using Gabor filters, and the detection of peaks in the node map via phase portrait analysis. Additional conditions are applied based upon the intensity characteristics of fundus images and the OD. Forty images from the DRIVE database were used to evaluate the performance of the proposed method. The OD was successfully detected in all of the 40 images.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
