Iris recognition has been used in a lot of countries for the purpose of identifying millions of people around the world. This technology is convenient to use and hard to forge. Many authentication programs including passport-less border crossing and national ID etc. have adopted this technology for its benefits. However, like
Iris recognition and retina scanning are very popular biometric modalities and have some features in common. They both are ocular-based technologies, meaning they rely on unique physiological characteristics of the eye to recognize individuals. They both provide contactless image capturing facilities unlike the more widely popular biometric technology of fingerprints.