Biometric devices use unique features of the body such as the fingerprints, facial, voice and Iris recognition in order to identify an individual. The most accurate and reliable biometric that exists today is the Iris Recognition Biometric which uses the unique feature of the body, the human eye. This device is being used across the globe in large industries, prisons, and airports such as in Germany and North Carolina. Due to the reliability and accuracy of such devices in the future they may be more visible in places such as banks and hospitals.
The reason that this device is so successful is the fact that each in
dividual has a unique iris, the colored part of the eye surrounding the pupil, which is responsible for dilating and contracting the pupil size. Each human eye, as well as both eyes on the same individual, have a unique color, texture and pattern. Furthermore, what makes the human iris fairly dependable is the fact that the iris is fairly stable and does not undergo drastic changes throughout an individual’s life time.
In order to be able to use any biometric device the first step is to register an individual on to it. Registration includes entry of data such as name, id number, etc., as well as an initial iris scan which the system uses to identify and store the unique characteristics and patterns of that particular person’s eye. The system consists of three parts the sensor or camera, the computer which analysis the information and the software which compares the information from the camera to that stored.(1) The Iris recognition system is one of the few biometric devices that do not include any physical contact. How this technology works is that once the camera detects an object, about three to ten inches away is the ideal range to stand, it automatically adjusts and focuses into the eye. The camera then screens the eye using infrared light and matches the image scanned to the one stored onto its database. (2)
For more information on how the Iris Recogntion biometric works visit:
ftp://ftp.panasonic.com/pub/Panasonic/cctv/White%20Papers/Iris52005.pdf
Iris recognition technology is the fastest and least error prone method of biometric identification. It takes about one second for the camera to analyze the image and can have search images of up to 1,500,000 per minute.(3) Furthermore, the Iris recognition system is not only the fastest but the most efficient biometric device in the market today having a 1*10^48% false positive rate. It also produces a much lower false rejection rate, which averages 1 in 1.2million scans, which is extremely low when compared to the rest of the biometric systems.(3)
References
(1)How stuff Works- A Discovery Company, http://science.howstuffworks.com/biometrics.htm. 19 November ,2008.
(2)The Child Project, http://www.thechildproject.org/iris-recognition-primer.html, 15 November, 2008.
(3)Iris Scan technology, http://74.125.95.132/search?q=cache:nKPYAfyrkYUJ:seminarinfo.blogspot.com/2006/07/iris-scan-technology.html+Iris+Recognition+time+to+do+scan&hl=en&ct=clnk&cd=4&gl=ca&client=firefox-a, 18 November, 2008.
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