The GCS Kernel for SVM-Based Image Recognition

  • Sabri Boughorbel
  • Jean-Philippe Tarel
  • François Fleuret
  • Nozha Boujemaa
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3697)

Abstract

In this paper, we present a new compactly supported kernel for SVM based image recognition. This kernel which we called Geometric Compactly Supported (GCS) can be viewed as a generalization of spherical kernels to higher dimensions. The construction of the GCS kernel is based on a geometric approach using the intersection volume of two n-dimensional balls. The compactness property of the GCS kernel leads to a sparse Gram matrix which enhances computation efficiency by using sparse linear algebra algorithms. Comparisons of the GCS kernel performance, for image recognition task, with other known kernels prove the interest of this new kernel.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Sabri Boughorbel
    • 1
  • Jean-Philippe Tarel
    • 2
  • François Fleuret
    • 3
  • Nozha Boujemaa
    • 1
  1. 1.IMEDIA GroupINRIA RocquencourtLe ChesnayFrance
  2. 2.DESE, LCPCParisFrance
  3. 3.CVLABEPFLLausanneSwitzerland

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