Sample Essay – Biometric Technologies
All biometric technologies have limitations of some sort that prevent them from achieving their theoretical accuracy. Fingerprint recognition has an advantage over other biometrics because multiple fingers can be used to attain extremely high accuracy if the application requires it.
Proper placement of a finger on a fingerprint reader is a very easy thing to do. Even with a fixed fingerprint reader placement, all people (short and tall, standing, sitting or wheelchair-bound individuals) can use their fingers to confirm their identity. Fingers on both hands can be registered, so an injury to one finger or hand does not prevent identity verification.
Most fingerprint readers available today are based on optical technologies and use digital-optical sensors, similar to electronics found in video cameras.
They are relatively small, inexpensive devices easily connected to most personal computers. Other readers utilize touch-sensitive chips, a newer technology for even smaller unit designs.
While prices today are comparable between digital-optical sensors and touch-sensitive chips, the latter holds the promise of lower-priced products in the future. Applications developed to take advantage of today’s digital-optical fingerprint readers will, most likely, adapt seamlessly to new technologies as they become available.
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