Authors V.O. Ageev, M.V. Ilina, I.A. Malkov
Month, Year 09, 2015 @en
Index UDC 541.18.045.2
Abstract One of the main problems of modern protection systems based on biometric identification is to reduce their reliability. The introduction of additional lines of protection: scanning the iris, hand geometry, facial recognition, etc., greatly increases the cost and complexity of the equipment of these systems, so not widespread. In this paper a method of biometric identification with high reliability based on measuring the elastic properties of the skin of a human finger while scanning his fingerprint is presented. The skin of a human finger is studied by atomic force microscopy and its distinctive features are revealed by the materials used to create plaster casts and casts finger-print. It is shown that the developed method of the identification allows a high degree of veracity to distinguish the skin from inorganic materials for its Young"s modulus. It is found that the elasticity of the skin varies at 15 % with increasing interval between the cut and dimension of the skin from 5 to 30 minutes. The elasticity of the skin also depends on the age of the person and amounts to 60,2 ± 4,2 and 42,4 ± 2,6 kPa to 20 and 40 years respectively. These dependencies can be used for creating additional levels of protection of biological identification method and preventing such methods of discredit as the use of snapshots and pre-made cuts of the skin. The results can be used in the development of biometric identification systems with a high level of protection that not only verifies the fingerprint pattern of the skin of a human finger, but its elasticity.

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Keywords Nanotechnology; biometrics; biometric identification; skin; elasticity; atomic force microscopy.
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