Monday, January 30, 2012

IRIS Detection


Day in and day out we need to prove our identity at various places, for secure access to buildings, air and rail travel, to cast a vote, etc. Security and the authentication of individuals are necessary in different spheres of life.
 
Traditionally, we have been using photo-based identity cards to prove our identity and we have been quite accustomed to it. These identity cards were augmented/replaced by passwords in many cases. However, of late, these conventional identity proofs are being replaced by biometric identifications to overcome many of the shortfalls of these methods. One of the most dangerous security threats is the impersonation, in which somebody claims to be somebody else. Trend in the identification & authentication world is headed towardsbiometrics. Finger prints, face recognition, Iris Recognition, DNA pattern recognition are replacing printed identity cards. Biometric identification provides a valid alternative to conventional authentication mechanisms such as ID cards and passwords. Biometric identification identifies an individual based on “who they are (Biometrics)” rather than “what they possess (passport)” or “what they remember (password)”.
 
Amongst various biometric authentication systems, IRIS recognition system is very important technique that uses pattern-recognition techniques on images of irides to uniquely identify an individual. Iris recognition is a particular type of biometric system that can be used to reliably identify a person by analyzing the patterns found in the iris. Because of the uniqueness of the iris, this is a very reliable form of authentication system. Although there is a genetic influence, particularly on the iris’ colour, the iris develops through folding of the tissue membrane and then degeneration (to create the pupil opening) which results in a random and unique iris.

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