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30 May 2000 Shape representation for content-based image retrieval
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Proceedings Volume 4067, Visual Communications and Image Processing 2000; (2000)
Event: Visual Communications and Image Processing 2000, 2000, Perth, Australia
To retrieve efficiently a specific image in their voluminous image database, users need of appropriate tools. That is the reason why, over the last years, content-based image retrieval systems have been developed. In these systems, users formulate their queries from both visual and textual descriptions. Consequently, these features must be described in a well-suited representation in order to satisfy the efficiency and relevant retrieval criterion. In the sequel, we will only dwell on one of the most important visual features, namely the shape feature. This feature is essential as it corresponds to region of interest in images. As far as the shape is concerned, an interesting representation can not be reached without efficient synergy between image analysis techniques, mathematics, and database technology. In this paper, the development of our theoretical model describing shape representation for content-based retrieval is presented as well as the numerical results computed for different simulations. These results are used to show the usefulness of the considered Fourier descriptors (first order and second order interpolation). Under MATLAB, a powerful mathematical software, we analyzed and easily validated the proposed method. To conclude, the relation between Moment theory (another interesting shape representation) and Fourier analysis is discussed.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ali Khenchaf and Marinette Bouet "Shape representation for content-based image retrieval", Proc. SPIE 4067, Visual Communications and Image Processing 2000, (30 May 2000);


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