Image Retrieval Using the Curvature Scale Space (CSS) Technique and the Self-Organizing Map (SOM) Model under Affine Transforms

  • Authors:
  • Carlos W. D. de Almeida;Renata M. C. R. de Souza;Carlos E. B. Rodrigues;Nicomedes L. Junior Cavalcanti

  • Affiliations:
  • Cidade Universitaria;Cidade Universitaria;Cidade Universitaria;University of Oxford

  • Venue:
  • HIS '07 Proceedings of the 7th International Conference on Hybrid Intelligent Systems
  • Year:
  • 2007

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Abstract

In a previous work [1], we presented an approach for shape-based image retrieval using the curvature scale space (CSS) and self-organizing map (SOM) methods. Here, we examine the robustness of the representation under affine transforms. Moreover, the CSS images extracted from a database are processed and described by median vectors that constitutes the training data set for a SOM neural network. This way of description improves the accuracy of image retrieval in comparison with the previous work [1] that used the first principal component of the PCA technique. Experiments with a benchmark database are carried out to demonstrate the usefulness of the proposed methodology.