Automatic screening and classification of diabetic retinopathy using filter banks.
Automatic screening and classification of diabetic retinopathy using filter banks.The effects of the eye abnormalities are mostly gradual in nature which shows the necessity for an accurate abnormality identification system. Abnormality in retina is one among them. Most of the ophthalmologists is depend on the visual interpretation for the identification of the types of diseases. This accurate diagnosis will change the course of treatment planning which leads to fatal results.
Diabetic retinopathy is one of the eye complications caused by the diabetes mellitus. which causes other problems such as stroke, cardiovascular disease, diabetic nephropathy and diabetic neuropathy. Diabetes mellitus produces damage to retinal capillaries and it can be visualised only in the retina, a transparent tissue of several different layers of cells. Diabetic retinopathy results in visual disturbances and can lead to permanent blindness. Therefore, an effective diabetic retinopathy screening is essential for early treatment, along with an effective risk factor management to prevent diabetic complications and reduce morbidity and mortality impact .
The earliest symptoms of Retinopathy are the Micro aneurysms, which occur due to dilatations of the blood capillaries and they appear as dark red spots on the retina. Hemorrhages occur when the microaneurysms burst. Bright-yellow colored Lesions such as hard exudates occur as a result of fluid leaking into the retinal surface from the capillaries or from Microaneurysms.
Early detection and treatment of DR is very crucial as it is a progressive disease and its severity is determined by the number and the types of lesions present in the fundus image. A healthy retina contains blood vessels, optic disc and maculaas its main components and any changes in these components are signs of any eye disease.