An Intrinsic Coordinate System for Fingerprint Matching

A.M. Bazen, Sabih H. Gerez

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    14 Citations (Scopus)


    In this paper, an intrinsic coordinate system is proposed for fingerprints. First the fingerprint is partitioned in regular regions, which are regions that contain no singular points. In each regular region, the intrinsic coordinate system is defined by the directional field. When using the intrinsic coordinates instead of pixel coordinates, minutiae are defined with respect to their position in the directional field. The resulting intrinsic minutiae coordinates can be used in a plastic distortioninvariant fingerprint matching algorithm. Plastic distortions, caused by pressing the 3-dimensional elastic fingerprint surface on a flat sensor, now deform the entire coordinate system, leaving the intrinsic minutiae coordinates unchanged. Therefore, matching algorithms with tighter tolerance margins can be applied to obtain better performance.
    Original languageUndefined
    Title of host publicationthe 3rd International Conference on Audio- and Video-based Biometric Person Authentication (AVBPA)
    EditorsJ. Bigun, F. Smeraldi
    Place of PublicationLondon
    Number of pages7
    ISBN (Print)3540422161
    Publication statusPublished - 6 Jun 2001
    EventAVBPA 2001: Proceedings of the 3rd International Conference on Audio- and Video-based Biometric Person Authentication - Halmstad, Sweden
    Duration: 6 Jun 20018 Jun 2001

    Publication series

    NameLecture Notes in Computer Science
    PublisherSpringer Verlag


    ConferenceAVBPA 2001
    CityHalmstad, Sweden


    • SCS-Safety
    • EWI-13285
    • regular regions
    • intrinsic coordinate system
    • plastic distortions
    • flow lines
    • Fingerprint matching
    • IR-62435
    • METIS-201488

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