There two types of uses of biometrics for recognising the
eyes for authentication – the retina and the iris. While seemingly of a similar
nature, there are, naturally, some notable differences. Retina scanning, while
highly accurate, is extremely expensive hardware to buy, install and maintain
and, of the two methods, it is rather intrusive. Iris scanning on the other
hand is nearly equally as accurate in identifying people but is not as
intrusive, requiring a camera that can be up to 12” away, making it less
uncomfortable for the person involved. What’s more, iris scanning uses lower
amounts of storage space, ultimately saving you money on maintenance costs
compared to retina.
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