Showing math.NAShow all
3 papers · 1 filter
math.NA2024
Using the Transport of Intensity and the Transport of Phase Equation for Phase Retrieval
Clemens Kirisits, Kemal Raik, Otmar Scherzer +2
We investigate the transport of intensity equation (TIE) and the transport of phase equation (TPE) for solving the phase retrieval problem. Both the TIE and the TPE are derived fro…
math.NA2022
A numerical comparison of some heuristic stopping rules for nonlinear Landweber iteration
Simon Hubmer, Ekaterina Sherina, Stefan Kindermann +1
The choice of a suitable regularization parameter is an important part of most regularization methods for inverse problems. In the absence of reliable estimates of the noise level,…
math.NA2019
A simplified L-curve method as error estimator
Stefan Kindermann, Kemal Raik
The L-curve method is a well-known heuristic method for choosing the regularization parameter for ill-posed problems by selecting it according to the maximal curvature of the L-cur…