2012 : Segmentation of the retinal optic nerve head using Hough transform and active contour models

Prof. Ir. Handayani Tjandrasa M.Sc., Ph.D.


Abstract

&60;em&62;Optic nerve head is part of the retina where ganglion cell axons exit the eye to form the optic nerve.&60;/em&62;&60;em&62; Glaucomatous changes related to loss of the nerve fibers decrease the neuroretinal rim and expand the area and volume of the cup. &60;/em&62;&60;em&62;This study implements  the detection of the optic nerve head in retinal fundus images based on the Hough Transform and Active Contour Models.&60;/em&62;&60;em&62; &60;/em&62;&60;em&62;The process starts with the image enhancement using homomorphic filtering for illumination correction, then proceeds with the removal of blood vessels on the image  to facilitate the subsequent segmentation process.&60;/em&62;&60;em&62; T&60;/em&62;&60;em&62;he result of the Hough Transform fitting circle becomes the initial level set for the active contour model. The experimental results show that the implemented …