Fingerprint Matching by Thin-plate Spline Modelling of Elastic Deformations

A.M. Bazen, Sabih H. Gerez

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    153 Citations (Scopus)
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    Abstract

    This paper presents a novel minutiae matching method that describes elastic distortions in fingerprints by means of a thin-plate spline model, which is estimated using a local and a global matching stage. After registration of the fingerprints according to the estimated model, the number of matching minutiae can be counted using very tight matching thresholds. For deformed fingerprints, the algorithm gives considerably higher matching scores compared to rigid matching algorithms, while only taking 100 ms on a 1 GHz P-III machine. Furthermore, it is shown that the observed deformations are different from those described by theoretical models proposed in the literature.
    Original languageUndefined
    Pages (from-to)1859-1867
    Number of pages9
    JournalPattern recognition
    Volume36
    Issue number8
    DOIs
    Publication statusPublished - 2003

    Keywords

    • Thin-plate spline models
    • Registration
    • IR-74906
    • Fingerprint verification
    • Elastic deformations
    • Minutiae matching
    • EWI-13309
    • SCS-Safety
    • METIS-216642

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