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Optical-digital methods of fingerprint identification
V.A. Soifer, V.V. Kotlyar, S.N. Khonina, R.V. Skidanov

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Pages: 78-89.

Full text of article: Russian language.

Abstract:
In this paper we consider optical-digital systems for identifying fingerprints by the spatial spectrum and by the directional field. We suggest an optical scheme of a coherent correlator with a spatial filter consisting of segmented diffraction gratings for the design of the directional field. We show that the analysis by the directional field is more preferable. We also show that in the analysis of fingerprints by the Fourier spectrum, only the information on the angular distribution of the spectrum is significant, and the data on the radial spectrum allocation are redundant.

Citation:
Soifer VA, Kotlyar VV, Khonina SN, Skidanov RV. Optical-digital methods of fingerprint identification. Computer Optics 1996; 16: 78-89.

References:
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