On the Combination of Ridgelets Descriptors for Symbol Recognition

  • O. Ramos Terrades
  • E. Valveny
  • S. Tabbone
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5046)


In this paper we propose an original solution to combine the scales of multi-resolution shape descriptors. More precisely, a classifier fusion scheme is applied to a set of shape descriptors obtained from the ridgelets transform. The Ridgelets coefficients are grouped into different descriptors according to their resolution. Then a classifier is trained for each descriptor and a final classification is obtained using the classifier fusion scheme. We have applied this approach to symbol recognition using the GREC 2003 database. In this perspective, we increase the recognition rates of previous works on ridgelets-based descriptors.


graphics recognition ridgelets descriptors classifier fusion 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • O. Ramos Terrades
    • 1
  • E. Valveny
    • 1
    • 2
  • S. Tabbone
    • 3
  1. 1.Computer Vision CenterSpain
  2. 2.Dept. Computer ScienceUniversitat Autònoma de BarcelonaSpain
  3. 3.LORIA-Université Nancy 2France

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