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International Workshop on Computational Forensics

IWCF 2009: Computational Forensics pp 150–164Cite as

Analysis of Authentic Signatures and Forgeries

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Part of the book series: Lecture Notes in Computer Science ((LNIP,volume 5718))

Abstract

The paper presents empirical studies of kinematic and kinetic signature characteristics. In contrast to previous studies a more in-depth analysis is performed which reveals insides on differences and similarities of authentic and mimicked signing movements. It is shown that the signing behavior of genuine writers and impostors is only likely to differ in terms of local characteristics. Global characteristics can easily be imitated by skilled forgers. Moreover, it is shown that authentic writing characteristics cover a broad value range that might interfere with value ranges of unsophisticated forgeries. In our experiments signing behavior of 55 authentic writers and of 32 writers mimicking signature samples with three different levels of graphical complexity is studied. We discuss implications for ink-trace characteristics on paper and provide recommendations for implementing computer-based analysis methods.

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Author information

Authors and Affiliations

  1. Norwegian Information Security Laboratory, Gjøvik University College, Norway

    Katrin Franke

Authors
  1. Katrin Franke
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Editor information

Editors and Affiliations

  1. Netherlands Forensic Institute, The Hague, The Netherlands

    Zeno J. M. H. Geradts

  2. Norwegian Information Security Laboratory, Gjøvik University College, Norway

    Katrin Y. Franke

  3. Digital Technology & Biometrics Department, Netherlands Forensic Institute, The Hague, The Netherlands

    Cor J. Veenman

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© 2009 Springer-Verlag Berlin Heidelberg

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Franke, K. (2009). Analysis of Authentic Signatures and Forgeries. In: Geradts, Z.J.M.H., Franke, K.Y., Veenman, C.J. (eds) Computational Forensics. IWCF 2009. Lecture Notes in Computer Science, vol 5718. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03521-0_14

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  • DOI: https://doi.org/10.1007/978-3-642-03521-0_14

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-03520-3

  • Online ISBN: 978-3-642-03521-0

  • eBook Packages: Computer ScienceComputer Science (R0)

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