42 citations · 51 across the 4 of their papers we have counts for
6 papers · 1 filter
Graph approximation and generalized Tikhonov regularization for signal deblurring
Davide Bianchi, Marco Donatelli
Given a compact linear operator $\K$, the (pseudo) inverse $\K^\dagger$ is usually substituted by a family of regularizing operators which depends on $\K$ itself. Naturally,…
Graph Laplacian for image deblurring
Davide Bianchi, Alessandro Buccini, Marco Donatelli +1
Image deblurring is relevant in many fields of science and engineering. To solve this problem, many different approaches have been proposed and among the various methods, variation…
Analysis of the spectral symbol associated to discretization schemes of linear self-adjoint differential operators
Davide Bianchi
Given a linear self-adjoint differential operator along with a discretization scheme (like Finite Differences, Finite Elements, Galerkin Isogeometric Analysis, etc.),…
Generalized Structure Preserving Preconditioners for Frame-Based Image Deblurring
Davide Bianchi, Alessandro Buccini
We are interested in fast and stable iterative regularization methods for image deblurring problems with space invariant blur. The associated coefficient matrix has a Block Toeplit…
Asymptotic spectra of large (grid) graphs with a uniform local structure
Andrea Adriani, Davide Bianchi, Stefano Serra-Capizzano
We are concerned with sequences of graphs having a grid geometry, with a uniform local structure in a bounded domain , . We assume to be Lebesgu…
Analysis of the spectral symbol function for spectral approximation of a differential operator
Davide Bianchi
Given a differential operator along with its own eigenvalue problem and an associated algebraic equation $\mathcal{L}^{(n)} \mathbf{u}_n = λ\mathb…