Decision Level Fusion of Fingerprint Minutiae Based Pseudonymous Identifiers

Bian Yang, Christoph Busch, Koen de Groot, H. Xu, Raymond N.J. Veldhuis

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

    4 Citations (Scopus)


    In a biometric template protected authentication system, a pseudonymous identifier is the part of a protected biometric template that can be compared directly against other pseudonymous identifiers. Each compared pair of pseudonymous identifiers results in a verification decision testing whether both attributes are derived from the same individual. Compared to an unprotected system, most existing biometric template protection methods cause to a certain extent, degradation in biometric performance. Therefore fusion is a promising method to enhance the biometric performance in template protected systems. Compared to feature level fusion and score level fusion, decision level fusion exhibits not only the least fusion complexity, but also the maximum interoperability across different biometric features, systems based on scores, and even individual algorithms. However, performance improvement via decision level fusion is not obvious. It is influenced by both the dependency and the performance gap among the conducted tests for fusion. We investigate in this paper several scenarios (multi-sample, multi-instance, multi- sensor, and multi-algorithm) when fusion is performed on binary decisions obtained from verification of fingerprint minutiae based pseudonymous identifiers. We demonstrate the influence on biometric performance from decision level fusion in different fusion scenarios on a multi-sensor fingerprint database.
    Original languageUndefined
    Title of host publicationInternational Conference on Hand-Based Biometrics, ICHB 2011
    Place of PublicationPiscataway, NJ, USA
    PublisherIEEE eXpress Conference Publishing
    Number of pages6
    ISBN (Print)978-1-4577-0491-8
    Publication statusPublished - 17 Nov 2011
    Event2011 International Conference on Hand-Based Biometrics, ICHB 2011 - The Hong Kong Polytechnic University, Hong Kong, China
    Duration: 17 Nov 201118 Nov 2011

    Publication series

    PublisherIEEE eXpress Conference Publishing


    Conference2011 International Conference on Hand-Based Biometrics, ICHB 2011
    Abbreviated titleICHB
    CityHong Kong


    • METIS-281634
    • Decision level fusion
    • Finger print
    • IR-78932
    • EWI-20979
    • pseudonymous identifier
    • minutiae
    • template proterction
    • SCS-Safety
    • EC Grant Agreement nr.: FP7/216339

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