Fingerprint Matching by Thin-plate Spline Modelling of Elastic Deformations

A.M. Bazen, Sabih H. Gerez

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    163 Citations (Scopus)
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    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
    Issue number8
    Publication statusPublished - 2003


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

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