2 October 2007 Multivariate indexing of multichannel images
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In this work, we address the problem of multichannel image retrieval in the compressed domain. A wavelet transform is applied to each component of the multispectral image. The salient features are computed from the resulting wavelet subbands. To this purpose, two approaches are envisaged. In the first one, the wavelet coeffcients of each component are separately considered whereas in the second one, they are jointly processed. More precisely, the contribution of this work lies on the fact that the features are extracted from the multivariate distribution of the wavelet coeffcients modelized thanks to copulas. Experimental results indicate that the second approach gives the best performances in terms of precision and recall.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sarra Sakji, Amel Benazza-Benyahia, "Multivariate indexing of multichannel images", Proc. SPIE 6763, Wavelet Applications in Industrial Processing V, 67630E (2 October 2007); doi: 10.1117/12.736391; https://doi.org/10.1117/12.736391

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