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The term "Biometrics" is derived from the Greek words bio (life) and metric (to measure).It refers to the automated recognition of individuals based on their physiological or behavioural traits like fingerprints, hand geometry, face, iris recognition, signature, voice and many more. By using biometrics it is possible to confirm or establish an individual's identity based on "Who she is", rather than by "What she possesses" (e.g., an ID card) or "What she remembers" (e.g., a password). In this paper, the authors give a brief overview of the field of biometrics and summarize some of its advantages, disadvantages, strengths, limitations, and related privacy concerns.
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