Efficient Dynamic Image Retrieval Using the Á Trous Wavelet Transformation

  • Authors:
  • Gerhard R. Joubert;Odej Kao

  • Affiliations:
  • -;-

  • Venue:
  • PCM '01 Proceedings of the Second IEEE Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
  • Year:
  • 2001

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Abstract

The increasing use of digital images in applications ranging from remote sensing to medical applications and industrial control systems results in a demand for well-suited and efficient techniques for their storage, management and retrieval. The state-of-the-art approach for image retried considers a priori extracted features, which are compared to query information supplied by a user in the form of, for example, a list of keywords or the corresponding features of a sample image or sketch. In this paper an alternative, object-based approach for image retrieval is presented. This allows the user to specify and to search for certain regions of interest in images. The marked regions are represented by wavelet coefficients and searched in all image sections during query runtime. All other image elements are ignored, thus a detailed search can be realised. The resulting computational effort can be overcome by utilisation of pardlel architectures. An example for a cluster-bawd image database is discused in the last part of this paper.