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Appropriate Biometric Identification

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Both the iris and retina are two of the most unique biometric traits exploited in two of the most accurate biometric verification and identification methods currently in use today. Retina recognition offers an astounding one in 10,000,000 comparative accuracy ratio while iris imaging offers a slightly lesser comparative accuracy ratio at one in 131,000. This puts the two at the top of the list in comparative accuracy when it comes to the common biometric methods. Although both have their clear advantages they also have key disadvantages that must be brought to light. (Newton, Robert, 2010)
The iris can be easily identified as the colored portion of the eye; it is a muscle within the eye that regulates the size of the pupil, thus controlling …show more content…
The first and very basic step is locating the iris, however this step can be impeded due to poor lighting, reflections, eyelashes, eyelids, and more. If an improper image of the iris is captured it can cause the system to have an inability to verify the user. Therefore, the system must be able to capture an image of a target approximately 1 cm in size. This target, the iris, is also moving due to natural dilation and with another object that is also moving, the eye itself. As a result, the cameras used to capture the image must be not only accurate, but extremely reliable and resistant to other outside factors. (“Homeland Security", …show more content…
This technology is considered to be one of, if not the most, intrusive biometric modality employed today. This is because in order to record the pattern found in the blood vessels the user must view a small green infrared light that scans a path to the retina and maps out the individual’s retinal pattern. Although research has shown that no damage is actually caused to the eye or retinal the use of infrared technology makes the majority of user uncomfortable and hesitant to use the technology. Not only this, but this scanning process can take an upwards of five seconds and requires the subject to stand extremely closing to the system used to capture and create the user’s template. ("How Does Retinal Scanning Work,”

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