A Survey Based On Blood Vessel and Optic Disc Segmentation

Retinal image analysis is done through different diagnosis methods in this modern Ophthalmology .Many novel methods are present to segment blood vessels and optic disc in the fundus retinal images. This methods are used for non-intrusive diagnosis since in the modern ophthalmology ,morphology of blood vessel and optic disc is an important indicator for some of the diseases like diabetic retinopathy ,glaucoma and hypertension .The starting step is the extraction of the retina vascular tree using the techniques like graph cut technique. Second is estimation of the blood vessel information in the location of the optic disc .Techniques like Markov random field (MRF) is used for the image reconstruction for performing the optic disc segmentation by removing blood vessels from the optic disc region. Testing can be done on datasets available. The comparison of the results with some alternative methods is done by the performance of the segmentation of the blood vessels and optic disc segmentation.