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Standalone fingerprint scanner

27.02.2001

Specialists from the German company Bergdata have developed a miniature, mouse-sized, self-contained (that is, not requiring connection to a personal computer) device for taking fingerprints.

Unlike other similar devices, the operation of this device is provided not by an optical, but by a thermal sensor, implemented on a specialized FingerChip chip from the French company Thomson-CSF. To take a fingerprint, it is enough to swipe it over a special window in the microcircuit housing at a speed of no more than 50 cm / s.

The device has a resolution of 500 dpi. It provides fast (no more than 1 s) comparison of a fingerprint with a database of 600 samples and is intended for use in access systems to protected premises.

The company's specialists are working on the problem of further miniaturization of the device so that it can be embedded, for example, in cell phones.

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Remote fingerprint scanning 29.03.2015

Japanese scientists have developed a device that allows you to remotely remove fingerprints left by an attacker from a surface. This procedure will require an apparatus called a forensic hyperspectral projector, capable of non-contact scanning of prints from any surface.

Researchers from the Japanese Police Research Department, together with engineers from Waseda University, have created a projector that uses a green laser to recognize a fingerprint. The system, due to the beam reflected from the object under study, analyzes the image for the presence of protein and fat particles that remain after contact with the object.

The announced technology allows you to recognize a fingerprint even if the touches on the object were repeated, as a result of which the skin patterns overlapped each other. In this case, the accuracy of the determination is approximately 70%. Previously, such a method of analysis was completely inaccessible to criminologists.

Japanese engineers are confident in the prospects of the presented solution and hope that the system under consideration, which is based on the principle of probing our planet, will become an indispensable assistant in conducting investigative and search activities. This will speed up the process of catching criminals and facilitate examinations at the crime scene. It is also assumed that the technology of remote scanning of prints using a green laser will read the information necessary for a DNA test.

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