Date Added: Jul 2012
There have been several implementations of security systems using biometric, especially for identification and verification cases. The term "Biometrics" is derived from the Greek words bio (life) and metric (to measure). In other words, bio means living creature and metrics means the ability to measure an object quantitatively. An example of pattern used in biometric is the iris pattern in human eye. The iris pattern has been proved unique for each person. The iris recognition system consists of an automatic segmentation system that is based on the Hough transform, and is able to localize the circular iris and pupil region, occluding eyelids and eyelashes, and reflections.