Severity Level Detection in Retinal Fundus Images for Diabetic Retinopathy
K. Ramanjaneyulu1, K. Rasajna2, A. Jawahar Reddy3, CH.S.N.V. Krishna Teja4, D. Venkata Teja5
1Dr. K. Ramanjaneyulu, Electronics and Communication Engineering, PVP Siddhartha Institute of Technology, Vijayawada, AP, India.
2K. Rasajna*, Electronics and Communication Engineering, PVP Siddhartha Institute of Technology, Vijayawada, AP, India.
3A. Jawahar Reddy, Electronics and Communication Engineering, PVP Siddhartha Institute of Technology, Vijayawada, AP, India.
4CH.S.N.V. Krishna Teja, Electronics and Communication Engineering, PVP Siddhartha Institute of Technology, Vijayawada, AP, India.
5D. Venkata Teja, Electronics and Communication Engineering, PVP Siddhartha Institute of Technology, Vijayawada, AP, India.
Manuscript received on March 30, 2020. | Revised Manuscript received on April 05, 2020. | Manuscript published on April 30, 2020. | PP: 1298-1302 | Volume-9 Issue-4, April 2020. | Retrieval Number: D7444049420/2020©BEIESP | DOI: 10.35940/ijeat.D7444.049420
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Diabetic Retinopathy is the disease caused for diabetic people which doesn’t have symptoms in the first phase. As it progresses, it becomes symptomatic. This disease, sometimes, might lead to complete blindness. Red lesions contain microaneurysms, haemorrhages and exudates. This work focuses on detection of red lesions in fundus image. Ophthalmologists use pupil dilation of chemical solutions in order to detect the abnormality which takes time and also causes irritation to patients. Image processing techniques are used to avoid these limitations. Morphological operations are used to identify the pixels belonging to the red lesions. Gabor filter is used for separating the blood vessels. Some spots are formed near macular region because blood vessels become leaky which leads to exudates. The severity level of the disease is determined by finding the distance between lesions and macular region. The disease is considered as severe if the distance between them is closer and confirms as less if the distance is far.
Keywords: Diabetic Retinopathy, Fundus Images, Gabor Filter, Haemorrhages, Red Lesions.