On the Combination of Ridgelets Descriptors for Symbol Recognition

Authors:
O. Ramos Terrades;E. Valveny;S. Tabbone
Affiliations:
Computer Vision Center, Spain;Computer Vision Center, Spain and Dept. Computer Science, Universitat Autònoma de Barcelona, Spain;LORIA-Université Nancy 2, France
Venue:
Graphics Recognition. Recent Advances and New Opportunities
Year:
2008

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Abstract

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.