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Proceedings Paper

Fingerprint matching via spatial correlation with regional coherence
Author(s): Al Ranalli
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Paper Abstract

A non-minutiae based technique for fingerprint matching is presented, based upon spatial correlation of fingerprint grayscale images. Normally, such techniques suffer from plastic distortion of the fingerprint ridges, which varies irreproducibly from one scan to another. This distortion can be seen as a process which reduces the degree of global spatial coherence of the fingerprint images. In the proposed approach, this limitation is accommodated by correlating small, windowed regions of a test image with the entire reference image. A score can then be ascertained, based on the partial correlations of these regions. The technique lends itself naturally to implementation by optical means.

Paper Details

Date Published: 28 January 1997
PDF: 7 pages
Proc. SPIE 2932, Human Detection and Positive Identification: Methods and Technologies, (28 January 1997); doi: 10.1117/12.265386
Show Author Affiliations
Al Ranalli, Printrak International (United States)


Published in SPIE Proceedings Vol. 2932:
Human Detection and Positive Identification: Methods and Technologies
Lisa A. Alyea; David E. Hoglund, Editor(s)

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