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Proceedings Paper

Ultrasonic sensor for fingerprints recognition
Author(s): Wieslaw Bicz; Zbigniew Gumienny; Mieczyslaw Pluta
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Paper Abstract

The paper presents prototypes of ultrasonic sensors for fingerprint pattern recognition. Their principle of operation is based on the amplitude measurements taken in selected points of acoustic field of ultrasonic wave diffracted from subsurface finger structure. Examples of sensor construction and measured data are presented. Fingerprint structure recognition from pulse echo shows the possible use of the sensor as a synthetic aperture microscope.

Paper Details

Date Published: 30 June 1995
PDF: 8 pages
Proc. SPIE 2634, Optoelectronic and Electronic Sensors, (30 June 1995); doi: 10.1117/12.213142
Show Author Affiliations
Wieslaw Bicz, OPTEL Ltd. (Poland)
Zbigniew Gumienny, Technical Univ. of Wroclaw (Poland)
Mieczyslaw Pluta, Technical Univ. of Wroclaw (Poland)

Published in SPIE Proceedings Vol. 2634:
Optoelectronic and Electronic Sensors
Ryszard Jachowicz; Zdzislaw Jankiewicz, Editor(s)

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