25 citations · 73 across the 14 of their papers we have counts for
3 papers · 2 filters
An Inner-Outer Iterative Method for Edge Preservation in Image Restoration and Reconstruction
Silvia Gazzola, Misha E. Kilmer, James G. Nagy +2
We present a new inner-outer iterative algorithm for edge enhancement in imaging problems. At each outer iteration, we formulate a Tikhonov-regularized problem where the penalizati…
Krylov Methods for Low-Rank Regularization
Silvia Gazzola, Chang Meng, James Nagy
This paper introduces new solvers for the computation of low-rank approximate solutions to large-scale linear problems, with a particular focus on the regularization of linear inve…
Structured FISTA for Image Restoration
Zixuan Chen, James Nagy, Yuanzhe Xi +1
In this paper, we propose an efficient numerical scheme for solving some large scale ill-posed linear inverse problems arising from image restoration. In order to accelerate the co…