Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 2 of 2 for “"Directional wavelet"”.
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NEW ALGORITHMS FOR COMPRESSED SENSING OF MRI: WTWTS, DWTS, WDWTS
… Variable Density Sampling (VDS) or using wavelet domain as sparsity basis generator. Recent work in this approach considers parent-child relations in the wavelet levels.</p> <p> This paper further extends the prior approach by utilizing the entire wavelet tree structure as an argument for …
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Signal representations: from images to irregular-domain signals
… of the contourlet transforms, that provide directional multiresolution representations, is established under a sufficient condition on the directional decay of the contourlet profiles in frequency-domain. This Fourier-based condition does not require directional vanishing moments and …