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Compactly Supported Shearlets are Optimally Sparse

Journal of Approximation Theory, no. 11 (2010): 1564-1589

Cited by: 234|Views3
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Abstract

Cartoon-like images, i.e., C2 functions which are smooth apart from a C2 discontinuity curve, have by now become a standard model for measuring sparse (nonlinear) approximation properties of directional representation systems. It was already shown that curvelets, contourlets, as well as shearlets do exhibit sparse approximations within th...More

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