246 / 2017-01-16 01:06:54

Review on Extraction Methods of Structural Components of the Retina and Image Databases

Diabetic Retinopathy Retinal images, optic disc, blood vessels

According to the report of WHO, diabetes is the
most threatening disease in the world and globally estimated
422 millions adults were living with diabetes in 2014. People
with prolonged diabetes i.e. more than 20 years leads to eye
disease such as DR. DR is a leading cause of blindness in
working-age people. 4.8% of 37 million cases of blindness in
the world are due to DR. The primary objectives of this paper
are study statistics about people with diabetes and DR followed
by economic burden. The anatomy of human eye and the retnas
structural components have been studied and their extraction
methods have been reviewed. Also in this paper the publicly
available retinal image databases features are analyzed using
Matlab imtool command.
The comparative study of state of art various DR screening
tools is presented. It is observed that the NICE recommends
DR screening modalities should have sensitivity of at least 80%,
a specificity of at least 95% and a technical failure rate of no
greater than 5%.