174 citations · 317 across the 16 of their papers we have counts for
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math.CA2012★ 6 cited
Operator-Like Wavelet Bases of
Ildar Khalidov, Michael Unser, John Paul Ward
The connection between derivative operators and wavelets is well known. Here we generalize the concept by constructing multiresolution approximations and wavelet basis functions th…
math.OC2012★ 174 cited
Hessian Schatten-Norm Regularization for Linear Inverse Problems
Stamatios Lefkimmiatis, John Paul Ward, Michael Unser
We introduce a novel family of invariant, convex, and non-quadratic functionals that we employ to derive regularized solutions of ill-posed linear inverse imaging problems. The pro…