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Sparse image representation by discrete cosine/spline based dictionaries
Published 7 Sep 2009 in math.NA and cs.CV | (0909.1310v1)
Abstract: Mixed dictionaries generated by cosine and B-spline functions are considered. It is shown that, by highly nonlinear approaches such as Orthogonal Matching Pursuit, the discrete version of the proposed dictionaries yields a significant gain in the sparsity of an image representation.
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