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Uses an image or series of images either from a camera or photograph to recognize a person.
PRINCIPLE: Analysis of the unique shape, pattern, and positioning of facial features.

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Not the same as speech recognition, It's speaker recognition. It's considered both physiological and behavioral. It is very popular and low-cost, but less accurate and sometimes lengthy enrollment.

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Extremely useful biometric technology since fingerprints have long been recognized as a primarily and accurate identification method.

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-DNA
-keystroke
-skin reflection
-lip motion
-body odor
-sweat pores
-fingernail bed
-hand grip
-footprint

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COMMON
-fingerprint recognition
-face recognition
-speaker recognition
-iris recognition
-signature verification

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PHYSIOLOGICAL

-Face, Fingerprint, Hand geometry, and Iris Recognition.

BEHAVIORAL

-Signature and Voice