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To improve the retrieval rate of contourlet transform retrieval system,a new contourlet retrieval system was proposed.The feature vectors were constructed by cascading the absolute mean energy and kurtosis of each sub-band contourlet coefficients and the similarity measure used here is Canberra distance. Experimental results on 109 brodatz texture images show that using the features cascaded by absolute...
To improve the retrieval rate of contourlet transform texture image retrieval system, a new texture image retrieval system was proposed. In the system, contourlet-S, which was a combination of non-subsampled Laplacian Pyramid and critical subsampled directional filter banks, was used to extract directional information of different scales. Generalized Gaussian Density (GGD) model parameters were cascaded...
In order to improve the retrieval rate of the original contourlet transform texture image retrieval system, a contourlet-1.3 transform based texture image retrieval method was proposed. In the system, the contourlet-1.3 transform is more localized than the original contourlet transform hence can avoid some certain aliasing and improve shift insensitivity. Generalized Gaussian Density (GGD) model parameters...
Contourlet transform has better performance in directional information representation than wavelet transform and has been studied by many researchers in retrieval systems and has been shown that it is superior to wavelet ones at retrieval rate. In order to improve the retrieval rate further, an anti-aliasing contourlet-1.3 transform based texture image retrieval system was proposed in this paper....
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