A Multi-Resolution Content-Based Retrieval Approach for Geographic Images

  • Authors:
  • Gholamhosein Sheikholeslami;Aidong Zhang;Ling Bian

  • Affiliations:
  • Department of Computer Science and Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA;Department of Computer Science and Engineering, State University of New York at Buffalo, Buffalo, NY 14260, USA;Department of Geography, State University of New York at Buffalo, Buffalo, NY 14260, USA

  • Venue:
  • Geoinformatica
  • Year:
  • 1999

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Abstract

Current retrieval methods in geographic image databases use only pixel-by-pixel spectral information. Texture is an important property of geographical images that can improve retrieval effectiveness and efficiency. In this paper, we present a content-based retrieval approach that utilizes the texture features of geographical images. Various texture features are extracted using wavelet transforms. Based on the texture features, we design a hierarchical approach to cluster geographical images for effective and efficient retrieval, measuring distances between feature vectors in the feature space. Using wavelet-based multi-resolution decomposition, two different sets of texture features are formulated for clustering. For each feature set, different distance measurement techniques are designed and experimented for clustering images in a database. The experimental results demonstrate that the retrieval efficiency and effectiveness improve when our clustering approach is used.