Detection of Optic Disc Boundary in Fundus Image of Eye

Sangram, Sangle Priya (2018) Detection of Optic Disc Boundary in Fundus Image of Eye. MTech thesis.

Restricted to Repository staff only



With the development of digital image techniques, modeling, and processing, automatic detection of diseases like diabetic retinopathy, Diabetic Macular Edema and glaucoma etc. has become an important screening task. Detection of optic disc pixel and its boundary are main and essential tasks concerning the retinal images to automate the calculation related to some prevailing systemic disorders, such as hypertension, cardiovascular diseases, diabetes and Glaucoma etc. Extraction of Optic Disc should be done properly so as to correctly identify these diseases. This report presents a new method which tries to detect Optic Disc more correctly using Morphological techniques followed by edge detection and Circular Hough Transform. For this, it first pre-processing is done for quality enhancement. Next step is todetects OpticDisc Pixel. Then blood vessel sare extracted by Matching Filter-First Order Gaussian Derivatives. Lastly Optic Disc boundary localization is done using circular Hough Transform. For this purpose, Dataset of DIARETDB1 is used consisting of 89 images. The result of the proposed method has an average overlapping of 0.82 and Optic Disc localization accuracy of 88.75%. Result of Proposed method is then gets compared with other existed methods in the Result and Analysis section.

Item Type:Thesis (MTech)
Uncontrolled Keywords:Edge detection,optic disc segmentation; retinal imaging; diabetic retinopathy; Glaucoma; telemedicine; Blood vessel.
Subjects:Engineering and Technology > Computer and Information Science > Image Processing
Divisions: Engineering and Technology > Department of Computer Science Engineering
ID Code:9653
Deposited By:IR Staff BPCL
Deposited On:15 Mar 2019 21:52
Last Modified:15 Mar 2019 21:52
Supervisor(s):Dash, Ratnakar

Repository Staff Only: item control page