Short Introduction
Simon Maretzke
Institute for Numerical and Applied Mathematics
Lotzestrasse 16-18
37083 Goettingen
Room 303
Phone (+49) 551 39 12468
s.maretzke [at] math.uni-goettingen.de
As a PhD-student in project C02 of the SFB 755 "Nanoscale Photonic Imaging",
I cooperate with researchers from the Institute for X-ray Physics in order to gain theoretical insights and
tailor numerical algorithms for inverse problems in the field of x-ray imaging. My advisor is Prof. Dr. Thorsten Hohage.
Research Interests
- Phase contrast imaging with x-rays
- Uniqueness and stability of phase reconstructions
- Tomographic imaging and alignment
- Numerical reconstruction techniques (iteratively regularized Gauss-Newton methods)
Dissertation
The published version of my PhD thesis can be found here.
Publications
- van Leeuwen, Tristan, Maretzke, Simon, Batenburg, K Joost. 2018. Automatic alignment for three-dimensional tomographic reconstruction. Inverse Problems 34(2): 024004. http://iopscience.iop.org/article/10.1088/1361-6420/aaa0f8 (also available on arXiv).
- Zickert, Gustav, Maretzke, Simon. 2018. Cryogenic electron tomography reconstructions from phaseless data. Inverse Problems 34: 124001. http://iopscience.iop.org/article/10.1088/1361-6420/aade22
- Maretzke, Simon. 2018. Locality estimates for Fresnel-wave-propagation and stability of near-field X-ray propagation imaging with finite detectors. Inverse problems 34(12): 124004. http://iopscience.iop.org/article/10.1088/1361-6420/aae78f (also available on arXiv).
- Maretzke, Simon. 2018. Generalized SART-Methods for Tomographic Imaging. arXiv preprint. arXiv:1803.04726. https://arxiv.org/abs/1803.04726 (submitted to SIAM Journal on Imaging Sciences).
- Maretzke, Simon, Hohage, Thorsten. 2017. Stability estimates for linearized near-field phase retrieval in X-ray phase contrast imaging. SIAM Journal on Applied Mathematics 77: 384–-408. http://epubs.siam.org/doi/abs/10.1137/16M1086170 (also available on arXiv).
- Maretzke, Simon, Bartels, Matthias, Krenkel, Martin, Salditt, Tim, Hohage, Thorsten. 2016. Regularized Newton methods for X-ray phase contrast and general imaging problems. Optics Express 24: 6490-6506. https://www.osapublishing.org/oe/abstract.cfm?uri=oe-24-6-6490
- Maretzke, Simon. 2015. Regularized Newton methods for simultaneous Radon inversion and phase retrieval in phase contrast tomography. arXiv preprint. arXiv:1502.05073. http://arxiv.org/abs/1502.05073
- Maretzke, Simon. 2015. A uniqueness result for propagation-based phase contrast imaging from a single measurement. Inverse Problems 31: IOP Publishing. 065003. http://dx.doi.org/10.1088/0266-5611/31/6/065003 (featured in Insights, also available on arXiv).
- Maretzke, Simon, Hof, Björn, Avila, Marc. 2014. Transient growth in linearly stable Taylor-Couette flows. Journal of Fluid Mechanics 742: Cambridge Univ Press. 254-290. http://dx.doi.org/10.1017/jfm.2014.12 (featured in Focus on Fluids, also available on arXiv).
All publications as BibTeX-file: bibtex