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Biometrics for Network Security by Paul Reid

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Chapter 6. Face Biometric Technologies

Face biometrics are used by everyone every day. The face is the first defining characteristic that we use to identify someone. It is the face that is recalled when trying to remember what someone looks like. We use it, and eventually come to depend on it, for recognition. We carry photo IDs that we show as proofs of identity. On the cards are pictures of our face.

Our trust in our ability to judge if we know someone by his/her face can also fool us as well. We have all at one time or another thought we recognized someone's face, only to have it not be the person we thought. For many people, including parents, twins present a unique problem. Some twins can be so similar that even the parents may need to identify ...

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