Iris Recognition Technology: The Process Of Iris Recognition Technology

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Iris Recognition Technology
The Iris
Iris had many features which is used to distinguish one iris from the other. There was no genetic influence while developing the iris, this process is known as "Chaotic morphogenesis" which will occur during the seventh month of the gestation. Even twins will have different type of irises. The iris is secure behind the eyelid, cornea and will be aqueous, which means unlike the other biometrics as fingerprints..etc. The iris will not change in subject of age this will always remain constant till the death. The use of the contact lenses and glasses will have a little effect on the representation of the iris and this will not obstruct with the recognition technology. The below picture will show the variation of irises.
Figure 1: Collage of Irises6
There will no two similar iris will exist, once an iris will come into being, then this will remain unchanged for the entire life. This iris is very difficult to falsify, and user do not need to make any physical contact with the device while capturing the image.
Process of recognizing Iris:
The procedure of capturing the iris into the biometric is made in three steps.
1. Capturing the image
2. Defining the location of the iris and optimizing the image
3. Storing and comparing the image.
1. Capturing the Image
The Iris image is just captured with the standard camera by using both the visible and the infrared light either by a manual process or an automated process. The camera is placed between three and a half inches and along one meter to capture the image. In getting the manual process the user must adjust the camera to get the iris in focus which needs to be in between six to twelve inches of the camera. This process is more manual and it al...

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...yed as errors. The point at which the FAR and the FRR are equal are known as Crossover Error Rate (CER). If the CER value is lower than the system will be more accurate and reliable. If the Hamming Distance is .342 in the Iris Technology then it is nominal CER.
System Usage:
The usage of the iris technology is very fast. The capturing and the testing of the images is very fast, it must require some training. The glasses must be removed during the enrollment in the recognition system will ensure the best image will be captured without any reflections from the glasses or the lenses.
The comparison of the live Iris Code and the recorded Iris Code in the database may seem like a large amount of the data to process, but coming to reality this will take a very few seconds. The comparison speed is the speed of the processor it is not dependent on the size of the database.

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