M.U. Akram, S. Nasir, and S.A. Khan(Pakistan)
Blood vessels, Matched filter, 2-D wavelet, vessel enhancement.
Diabetic retinopathy occurs when high blood sugar damages small blood vessels in retina so blood vessel segmentation is an essential step for the diagnoses of diabetic
retinopathy. An automated tool for blood vessel segmentation is useful to eye specialists for purpose of patient
screening and clinical study. In this paper, we present
a wavelet based method for enhancing, locating and segmenting blood vessels in images of retina. This technique
is tested on publicly available STARE database of hand labeled images which has been established to facilitate comparative studies on segmentation of blood vessels in retinal
images. Wavelet based enhancement method is compared
with matched filter based vessel enhancement method. The
validation of our retinal image vessel enhancement technique is supported by results.