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Personal profile

Research interests

Inverse Problems


Machine Learning


Education/Academic qualification

Medical Imaging, Doctor of Philosophy, University College London

May 2012Apr 2015

Industrial Mathematics, Master of Science, Universität Bremen

Sep 2006Jan 2012


  • Inverse Problems
  • Imaging
  • Machine Learning
  • Optimization
  • Medical Imaging
  • Applied Mathematics

Fingerprint Dive into the research topics where Matthias Ehrhardt is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Machine Learning Mathematics
Inverse Problem Mathematics
Imaging Mathematics
Optimization Mathematics

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Projects 2019 2023

Research Output 2012 2019

  • 11 Article
  • 6 Conference contribution
  • 1 Working paper
4 Downloads (Pure)

Enhancing joint reconstruction and segmentation with non-convex Bregman iteration

Corona, V., Benning, M., Ehrhardt, M. J., Gladden, L. F., Mair, R., Reci, A., Sederman, A. J., Reichelt, S. & Schoenlieb, C-B., 26 Apr 2019, In : Inverse Problems. 35, 5, 34 p., 055001.

Research output: Contribution to journalArticle

Open Access

Faster PET reconstruction with non-smooth priors by randomization and preconditioning

Ehrhardt, M. J., Markiewicz, P. J. & Schönlieb, C-B., 21 Nov 2019, In : Physics in Medicine and Biology. 64, 22, p. 1-17 18 p., 225019.

Research output: Contribution to journalArticle

Open Access

Versatile regularisation toolkit for iterative image reconstruction with proximal splitting algorithms

Kazantsev, D., Pasca, E., Basham, M., Turner, M., Ehrhardt, M. J., Thielemans, K., Thomas, B. A., Ovtchinnikov, E., Withers, P. J. & Ashton, A. W., 28 May 2019, 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine. Matej, S. & Metzler, S. D. (eds.). U. S. A.: SPIE, p. 1-6 6 p. 110722D. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 11072).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Blind image fusion for hyperspectral imaging with the directional total variation

Bungert, L., Coomes, D. A., Ehrhardt, M. J., Rasch, J., Reisenhofer, R. & Schönlieb, C. B., 8 Mar 2018, In : Inverse Problems. 34, 4, 044003.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)

Fast Quasi-Newton Algorithms for Penalized Reconstruction in Emission Tomography and Further Improvements via Preconditioning

Tsai, Y. J., Bousse, A., Ehrhardt, M. J., Stearns, C. W., Ahn, S., Hutton, B. F., Arridge, S. & Thielemans, K., 1 Apr 2018, In : IEEE Transactions on Medical Imaging. 37, 4, p. 1000-1010 11 p.

Research output: Contribution to journalArticle

Open Access