A Rotation, Translation, and Scale-Invar
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Ruggero Milanese; Michel Cherbuliez
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Article
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1999
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Elsevier Science
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English
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We describe a method for computing an image signature, suitable for contentbased retrieval from image databases. The signature is extracted from the Fourier power spectrum by performing a mapping from cartesian to logarithmic-polar coordinates, projecting this mapping onto two 1D signature vectors,