Effectiveness of Pen Pressure, Azimuth, and Altitude Features for Online Signature Verification

  • Daigo Muramatsu
  • Takashi Matsumoto
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4642)

Abstract

Many algorithms for online signature verification using multiple features have been proposed. Recently it has been argued that pen pressure, azimuth, and altitude can cause instability and deteriorate the performance. Algorithms without pen pressure and inclination features outperformed with them in SVC2004. However, we previously found that these features improved the performance in evaluations using our private database. The effectiveness of the features thus depended on the algorithm. Therefore, we re-evaluated our algorithm using the same database as used in SVC2004 and discuss the effectiveness of pen pressure, azimuth and altitude. Experimental results show that even though these features are not so effective when they are used by themselves, they improved the performance when used in combination with other features. When pen pressure and inclination features were considered, an EER of 3.61% was achieved, compared to an EER of 5.79% when these features were not used.

Keywords

Online signature verification Pen pressure Pen azimuth Pen altitude Fusion SVC2004 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Daigo Muramatsu
    • 1
  • Takashi Matsumoto
    • 2
  1. 1.Department of Electrical and Mechanical Engineering, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo 180-8633Japan
  2. 2.Department of Electrical Engineering and Bioscience, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555Japan

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