There are basically two types of biometrics:
1. Behavioral biometrics
2. Physical biometrics
Behavioral biometric definition : Behavioral biometrics basically measures the characteristics which are acquired naturally over a time. It is generally used for verification.
Examples of behavioral biometrics include:
* Speaker Recognition - analyzing vocal behavior
* Signature - analyzing signature dynamics
* Keystroke - measuring the time spacing of typed words
Physical biometric definition : Physical biometrics measures the inherent physical characteristics on an individual. It can be used for either identification or verification.
Examples of physical biometrics include:
* Bertillonage - measuring body lengths (no longer used)
* Fingerprint - analyzing fingertip patterns
* Facial Recognition - measuring facial characteristics
* Hand Geometry - measuring the shape of the hand
* Iris Scan - analyzing features of colored ring of the eye
* Retinal Scan - analyzing blood vessels in the eye
* Vascular Patterns - analyzing vein patterns
* DNA - analyzing genetic makeup
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