26 citations · 43 across the 3 of their papers we have counts for
3 papers
stat.CO2017
Upper-Bounding the Regularization Constant for Convex Sparse Signal Reconstruction
Renliang Gu, Aleksandar Dogandžić
Consider reconstructing a signal by minimizing a weighted sum of a convex differentiable negative log-likelihood (NLL) (data-fidelity) term and a convex regularization term tha…
stat.ME2015★ 17 cited
Polychromatic X-ray CT Image Reconstruction and Mass-Attenuation Spectrum Estimation
Renliang Gu, Aleksandar Dogandžić
We develop a method for sparse image reconstruction from polychromatic computed tomography (CT) measurements under the blind scenario where the material of the inspected object and…
stat.CO2015★ 26 cited
Projected Nesterov's Proximal-Gradient Algorithm for Sparse Signal Reconstruction with a Convex Constraint
Renliang Gu, Aleksandar Dogandžić
We develop a projected Nesterov's proximal-gradient (PNPG) approach for sparse signal reconstruction that combines adaptive step size with Nesterov's momentum acceleration. The obj…