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Definition
Biometric sensors are used to collect measurable biological characteristics (biometric signals) from a human being, which can then be used in conjunction with biometric recognition algorithms to perform automated person identification.
Background
To measure any type of biometric signal, a biometric sensor is required. This sensor may either output the raw signal or additionally convert the raw signal into a set of features that is better suited to distinguish between signals from separate individuals. The type of sensor used depends on the biometric signal being measured. Some biometric modalities like face and voice only require simple sensors. For instance, to capture a person’s voice, a good-quality microphone is sufficient (given that the sound capture occurs in a reasonably quiet environment). However, other biometric modalities require the use of specialized hardware built for that...
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Thomas, A., Govindaraju, V. (2011). Biometric Sensors. In: van Tilborg, H.C.A., Jajodia, S. (eds) Encyclopedia of Cryptography and Security. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-5906-5_727
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DOI: https://doi.org/10.1007/978-1-4419-5906-5_727
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