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Soft Computing Applications pp 27–43Cite as

The Biometric Menagerie – A Fuzzy and Inconsistent Concept

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Part of the Advances in Intelligent Systems and Computing book series (AISC,volume 195)

Abstract

This paper proves that in iris recognition, the concepts of sheep, goats, lambs and wolves - as proposed by Doddington and Yager in the so-called Biometric Menagerie, are at most fuzzy and at least not quite well defined. They depend not only on the users or on their biometric templates, but also on the parameters that calibrate the iris recognition system. This paper shows that, in the case of iris recognition, the extensions of these concepts have very unsharp and unstable (non-stationary) boundaries. The membership of a user to these categories is more often expressed as a degree (as a fuzzy value) rather than as a crisp value. Moreover, they are defined by fuzzy Sugeno rules instead of classical (crisp) definitions. For these reasons, we said that the Biometric Menagerie proposed by Doddington and Yager could be at most a fuzzy concept of biometry, but even this status is conditioned by improving its definition. All of these facts are confirmed experimentally in a series of 12 exhaustive iris recognition tests undertaken for University of Bath Iris Image Database while using three different iris code dimensions (256x16, 128x8 and 64x4), two different iris texture encoders (Log Gabor and Haar Hilbert) and two different types of safety models.

Keywords

  • iris recognition
  • fuzzy
  • inconsistent
  • biometric menagerie

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  • DOI: 10.1007/978-3-642-33941-7_6
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References

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Author information

Authors and Affiliations

  1. Artificial Intelligence & Computational Logic Lab., Mathematics & Computer Science Department, Spiru Haret University, Bucharest, Romania

    Nicolaie Popescu-Bodorin & Iulia Maria Motoc

  2. Automatics and Applied Software Department, Faculty of Engineering, Aurel Vlaicu University, Arad, Romania

    Valentina Emilia Balas

Authors
  1. Nicolaie Popescu-Bodorin
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  2. Valentina Emilia Balas
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  3. Iulia Maria Motoc
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Corresponding author

Correspondence to Nicolaie Popescu-Bodorin .

Editor information

Editors and Affiliations

  1. , Department of Automation & Applied Infor, Aurel Vlaicu University of Arad, Blvd. Revolutiei 77, Arad, 310130, Romania

    Valentina Emilia Balas

  2. , Institute of Intelligent Engineering, Óbuda University, Bécsi út 96/b, Budapest, 1034, Hungary

    János Fodor

  3. Dept. Measurement &, Information Systems, Technical University Budapest, Magyar tudósok körutja 2, Budapest, 1521, Hungary

    Annamária R. Várkonyi-Kóczy

  4. , Department of Informatics, University of Szeged, Arpad ter 2., Szeged, 6720, Hungary

    Joszef Dombi

  5. , School of Electrical and Information, University of South Australia, 5095, Adelaide, Australia

    Lakhmi C. Jain

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Popescu-Bodorin, N., Balas, V.E., Motoc, I.M. (2013). The Biometric Menagerie – A Fuzzy and Inconsistent Concept. In: Balas, V., Fodor, J., Várkonyi-Kóczy, A., Dombi, J., Jain, L. (eds) Soft Computing Applications. Advances in Intelligent Systems and Computing, vol 195. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33941-7_6

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  • DOI: https://doi.org/10.1007/978-3-642-33941-7_6

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