Retrieval of trademark images by means of size functions

  • Authors:
  • A. Cerri;M. Ferri;D. Giorgi

  • Affiliations:
  • Dipartimento di Matematica and ARCES, Unirersità degli Studi di Bologna, Bologna, Italy;Dipartimento di Matematica and ARCES, Unirersità degli Studi di Bologna, Bologna, Italy;Dipartimento di Matematica and ARCES, Unirersità degli Studi di Bologna, Bologna, Italy

  • Venue:
  • Graphical Models - Special issue on the vision, video and graphics conference 2005
  • Year:
  • 2006

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Abstract

We propose a new, effective system for content-based retrieval of figurative images, which is based on size functions, a geometrical-topological tool for shape description and matching. Three different classes of shape descriptors are introduced and integrated, for a total amount of 25 measuring functions. The evaluation of our fully automatic retrieval system has been performed on a benchmark database of 10,745 real trademark images, supplied by the United Kingdom Patent Office. Comparative results show that our method actually outperforms other existing whole-image matching techniques, comprising features incorporated in the MPEG-7 standard.