I am an applied mathematician and assistant professor for computational and mathematical methods for imaging at the University of Hamburg. Therefore, I am member of Center of Optimization and Approximation and associated with the Institute for Biomedical Imaging at the University hospital Hamburg Eppendorf (UKE).
My actual research covers large-scale inverse problems in biological and medical applications such as for example fluorescence microscopy, photo acoustic tomography and magnetic particle imaging. More precisely, I am working on variational regularization methods, dynamic inverse problems, Bayesian inversion, and approximation error modelling.
We are looking for a PhD candidate within the DASH graudate school. The topic are inverse problems in X-ray science and will be supervised jointly with Prof. Rohringer from the department of physics. Apply here .
I will attend the Oberwolfach workshop "Tomographic Inverse Problems: Theory and Applications" from 27.1.-2.2.19 and the API conference in July 2019.
Our project "Multi-messenger x-ray science - Solving inverse problems of x-ray crystallography with constraints by x-ray emission spectra" has been accepted for funding from the DESY Strategy Fond.
We are looking for a PostDoc for our project. More information your can find here.
Sparse Image Reconstruction for Photoacoustic Tomography Using Shearlets
Workshop "Wavelets and Applications"
22.5.2014, Université Libre de Bruxelles, Belgium
Invited by Christine de Mol
Magnetic Particle Imaging (MPI) is a novel imaging modality for biomedical diagnostics that determines the spatial distribution of magnetic nanoparticles by measuring the non-linear magnetization response of the particles to an applied magnetic field. The advantages of MPI are the high dynamic spatial and temporal resolution and that it does not employ any ionizing radiation.
Flow estimation with a priori edge information for MPI/MRI data , joint work with Ikram Jumakulyyev and Tobias Kluth
Joint reconstruction in multi-color MPI, joint work with Martin Storath, Martin Hofmann and Tobias Knopp
Approximation error modelling for model-based MPI, joint work with Aku Seppänen
Time based regularization for 4D MPI, joint work Andreas Hauptmann
Related Publications:
Brandt, C.; Seppänen, A. : Recovery from errors due to domain truncation in magnetic particle imaging -- approximation error modeling approach. Journal of Mathematical Imaging and Vision, 2018.Prof. Martin Storath
Hochschule Würzburg-SchweinfurtProf. Tobias Knopp, Dr. Martin Hofmann
Universitätsklinikum Hamburg-Eppendorf
Institut für Biomedizinische Bildgebung
Technische Universität Hamburg
Dr. Wolfgang Erb
Università degli Studi di PadovaProf.P. Maass, Dr. Tobias Kluth
Center for Industrial MathematicsDr. Andreas Hauptmann
University College LondonDr. Aku Seppänen
University of Eastern FinlandProf. Nina Rohringer
Deutsches Elektron-SynchrotonProf. Simone Techert
Deutsches Elektron-SynchrotonI will give a course on convex optimization during summer semester 2019. The course will cover a introduction to convex optimization in infinite dimensional spaces and modern splitting approaches for minimization.
Lothar Collatz Seminar (together with Stefan Heitmann) (Summer semester 2019)
Master course on inverse problems. We will treat the classical theory of linear inverse problems. (Winter semester 2018/19)
Master course on computer tomography. This is the first part of the inverse problems course. (Winter semester 2018/19)
Bachelor course on optimization (Summer semester 2018)
Lothar Collatz Seminar (together with Stefan Heitmann) (Summer semester 2018)
Course on computer tomography
and short introduction to inverse problems (Winter semester 2017/18)
Course on convex optimization
in infinite dimesions (Summer semester 2017)
Exercises on inverse problems (Winter semester 2016/27)
course together with Prof. Kunis (Summer semester 2014)
2 tutorials (winter semester 2012/13)
2 tutorials ( summer semester 2012 )
Since 03 2017
09/2015 - 02 2017
Academy post-doctoral researcher in the Inverse Problems group at the Eastern University of Finland in Kuopio.
04/2013 - 08/2015
Post-doctoral researcher in the research group "Applied and Numerical Analysis" at the University Osnabrück working within the
01/2008 - 04/2013
Research assistant in the at the WG Industrial Mathematics at the Center for Industrial Mathematics at the University Bremen, working within the
2008 - 2012
Doctoral studies in the research group "Industrial mathematics" at the University Bremen
2012: Doctorate degree in mathematics, University Bremen
10/2001 - 08/2007
08/2007
Diploma studies in mathematics , University Rostock
Diploma degree in mathematics, University Rostock
10/2002 - 08/2007
10/2006 - 07/2006
08/2007
Diploma studies in physics, University Rostock
Master studies in physics, Erasmus exchange program, University Nantes
Master degree in physics, University Nantes (France)