activity
20122025
most citedOptical Flow on Evolving Surfaces with Space and Time Regularisation

13 citations · 56 across the 16 of their papers we have counts for

collaborators

18 papers

math.OC2025

Regularization of Nonlinear Inverse Problems -- From Functional Analysis to Data-Driven Approaches

Clemens Kirisits, Bochra Mejri, Sergei Pereverzev +2

The focus of this book is on the analysis of regularization methods for solving \emph{nonlinear inverse problems}. Specifically, we place a strong emphasis on techniques that incor…

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.NA2024★ 3 cited

Generalized Fourier Diffraction Theorem and Filtered Backpropagation for Tomographic Reconstruction

Clemens Kirisits, Michael Quellmalz, Eric Setterqvist

This paper concerns diffraction-tomographic reconstruction of an object characterized by its scattering potential. We establish a rigorous generalization of the Fourier diffraction…

math.NA2024

Diffraction Tomography for a Generalized Incident Field

Clemens Kirisits, Noemi Naujoks, Otmar Scherzer

Diffraction tomography is an inverse scattering technique used to reconstruct the spatial distribution of the material properties of a weakly scattering object. The object is expos…

math.NA2023

Uncertainty Quantification for Scale-Space Blob Detection

Fabian Parzer, Clemens Kirisits, Otmar Scherzer

We consider the problem of blob detection for uncertain images, such as images that have to be inferred from noisy measurements. Extending recent work motivated by astronomical app…

math.NA2021★ 6 cited

Diffraction Tomography, Fourier Reconstruction, and Full Waveform Inversion

Florian Faucher, Clemens Kirisits, Michael Quellmalz +2

In this paper, we study the mathematical imaging problem of diffraction tomography (DT), which is an inverse scattering technique used to find material properties of an object by i…