Prof. Dr.
Ronny Ramlau
Managing Scientific Director
Group Leader
Transfer Group
CONTACT
Email: ronny.ramlau(at)ricam.oeaw.ac.at
Telephone: +43 732 2468 4101
https://orcid.org/0000-0002-7919-7672
Biographical sketch
- born on July 23, 1966 in Annaberg-Buchholz, Germany
- 1988/1994 Study of Mathematics at University of Potsdam, Germany
- 1994: Diploma in Mathematics, University of Potsdam, Germany
- 1997: Ph.D. in Mathematics, University of Potsdam, Germany
- 2003: Habilitation, University of Bremen, Germany
Former and Current Positions
- 1994-1997: Research Assistant, University of Potsdam, Germany
- 1998 : Visiting Scholar, University of Salt Lake City, USA
- 1999-2005: Research Assistant, University of Bremen, Germany
- September-December 2003: Visiting scholar, Institute for Pure and Applied Mathematics (IPAM), UCLA, USA
- September 2005 - August 2008: Senior Scientist in the group "Inverse Problems" at the RICAM
- Since September 2008: Professor for Industrial Mathematics, Johannes Kepler University Linz
- 03/2013-09/2014: Acting Director at RICAM
- 10/2014-04/2015: Scientific Director at RICAM
- 05/2015-07/2016: Managing Scientific Director at RICAM
- 08/2016-2/2019: Scientific Director at RICAM
- 03/2019-02/2021: Managing Scientific Director at RICAM
Visiting Positions and Offers
- 1976/77: Georgia Institute of Technology, USA
- 1978/79: University of Delaware, USA
- 1980/81 and 1986/87: University of Klagenfurt, Austria
- 1986 and 1989: Centre for Mathematical Analysis, Australian National University
- 1988/89: University of Vienna, Austria
- 2001: University of Oxford, UK: Oxford Centre for Industrial and Applied Mathematics and St.Catherine's College (Visiting Fellow)
- 1994: Call to University of Kaiserslautern, Germany, as Full Professor of Applied Mathematics
- 2001: Call to Rensselaer Polytechnic Institute, Troy, NY, USA, as Dean of Science and Full Professor of Mathematics
- 2003/04: Institute for Pure and Applied Mathematics at UCLA, leading a Special Semester on Inverse Problems
Memberships in Editorial Boards
- Surveys on Mathematics for Industry (Managing Editor)
- Inverse Problems (Scientific Advisory Board)
- Journal of Inverse and Ill-Posed Problems
- Mathematical Modelling and Computational Experiment
- Chinese Journal of Engineering Mathematics (the journal of CSIAM)
- European Journal of Applied Mathematics
- Mathematical Reviews Editorial Committee (AMS)
Academic Honors and Awards
Excerpt:
- Full member, Austrian Academy of Sciences
- Full member and former member of the presidium, German Academy of Natural Sciences Leopoldina
- Cardinal Innitzer Prize for Natural Sciences in Austria
- Invited speaker at ICM 1998 (Berlin) and ICIAM 2003 (Sydney)
- Singapore National Science Award 2003
- 2013 Fellow of the American Mathematical Society
Professional Service
- 1991-1997: Member of the Board of GAMM
- 1992-2000: Board Member of the European Consortium for Mathematics in Industry (ECMI), President: 1994-1996
- 1995-1999: Member of CICIAM
- 1997-2001: Chairman of the Committee on Applied Mathematics of the European Mathematical Society
- Member of the SIAM Committee on Programs
- Member of many Program Committees including ICIAM1995, ICIAM2003, SIAM2002
- Member of the Strategy Board of MACSINet
- 1994-2003: Member of the Board of the Austrian Science Foundation FWF
- 2003-2007: Member and vice-chair of the University Council of Graz University of Technology
- since 2006: Member of the Editorial Board of the "Radon Series on Computational and Applied Mathematics", Walter de Gruyter GmbH & Co KG, Berlin/New York (2006-2014: Managing Editor)
- Owner of MathConsult GmbH, the developer of the Financial Derivatives Pricing Tool UnRisk
Teaching
- Discrete Mathematics Research Seminar (SS 2020)
Research projects
- ESO - In-Kind Project: Mathematical Algorithms and Software for E-ELT Adaptive Optics
- FWF Project P19496-N18: Inverse Problems with Sparsity Constraints.
Project scientist: DI. S. Anzengruber,
Project runtime: 15.06.2007 - 15.06.2010 - FWF Project P20237-N14: Mathematical methods for high-precision balancing of machine-tools.
Project scientist: Dr. J. Niebsch
Project runtime: 01.01.2008 - 31.12.2010 - Doktoral Program Computational Mathematics: Project Nonlinear regularization methods for the solution of linear ill-posed problems
Project runtime: 1.10. 2008 - 30.09.2011
Project Scientist: Dipl. math. I. Bleyer - FFG Project Modellbasierte Umwuchtbestimmung in Windenergieanlagen
Project Runtime: 01.01.2009 - 31.12.2011
Research Interests
- nonlinear inverse problems
- inverse problems in astronomy
- regularization methods
- iterative methods
- medical imaging
- mathematical methods in industry
Further Information
Member of Rotary Club Wien
Publications
Peer Reviewed Journal Publication
Peer Reviewed Journal Publication
- Rannetbauer, Wolfgang; Hambrock, Carina; Hubmer, Simon; Ramlau, Ronny (2024) Enhancing Predictive Quality in HVOF Coating Technology: A Comparative Analysis of Machine Learning Techniques. Procedia Computer Science, Bd. 232, S. 1377-1387.DOI RIS ENW BIB
- Hubmer, Simon; Sherina, Ekaterina; Ramlau, Ronny; Pircher, Michael; Leitgeb, Rainer (2023) Subaperture-Based Digital Aberration Correction for Optical Coherence Tomography: A Novel Mathematical Approach. SIAM Journal on Imaging Sciences, Bd. 16 (4), S. 1857-1885.DOI RIS ENW BIB
- Hubmer, Simon; Sherina, Ekaterina; Ramlau, Ronny (2023) Characterizations of adjoint Sobolev embedding operators with applications in inverse problems. Electronic Transaction on Numerical Mathematics, Bd. 59, S. 116-144.DOI RIS ENW BIB
- Hubmer, Simon; Sherina, Ekaterina; Ramlau, Ronny (2023) Characterizations of Adjoint Sobolev Embedding Operators with Applications in Inverse Problems. Electronic Transactions on Numerical Analysis, Bd. 116--144, S. 116--144.DOI RIS ENW BIB
- Hinterer, Fabian; Schneider, Magdalena C.; Hubmer, Simon; Lopez-Martinez, Montserrat; Ramlau, Ronny et al. [..] (2023) Localization of fixed dipoles at high precision by accounting for sample drift during illumination. Applied Physics Letters, Bd. 123 (2), S. 023703.DOI RIS ENW BIB
- Wagner, Roland; Niebsch, Jenny; Ramlau, Ronny (2023) Off-axis point spread function reconstruction for single conjugate adaptive optics. J OPT SOC AM A, Bd. 40 (7), S. 1382-1391.DOI RIS ENW BIB
- Meingast, Stefan; Alves, Joao; Bouy, Herve; Petr-Gotzens, Monika G.; Fuernkranz, Verena et al. [..] (2023) VISIONS: the VISTA Star Formation Atlas I. Survey overview. ASTRON ASTROPHYS, Bd. 673, S. ARTN A58.DOI RIS ENW BIB
- Hinterer, Fabian; Hubmer, Simon; Jethwa, Prashin; Soodhalter, Kirk M.; van de Ven, Glenn et al. [..] (2023) A Projected Nesterov–Kaczmarz Approach to Stellar Population-Kinematic Distribution Reconstruction in Extragalactic Archaeology. SIAM Journal on Imaging Sciences, Bd. 16 (1), S. 192--222.DOI RIS ENW BIB
- Alqahtani, A.; Ramlau, R.; Reichel, L. (2023) Error estimates for Golub-Kahan bidiagonalization with Tikhonov regularization for ill-posed operator equations. INVERSE PROBL, Bd. 39 (2), S. ARTN 025002.DOI RIS ENW BIB
- Jenny Niebsch, Werner v. Bloh, Kirsten Thonicke, Ronny Ramlau (2023) Accelerated photosythesis routine in LPJmL4. Geoscientifec Model Development, Bd. 16 (1), S. 17-33.DOI RIS ENW BIB
- Simioni, Matteo; Arcidiacono, Carmelo; Wagner, Roland; Grazian, Andrea; Gullieuszik, Marco et al. [..] (2022) Point spread function reconstruction for SOUL+LUCI LBT data. Journal of Astronomical Telescopes, Instruments, and Systems (JATIS), Bd. 8 (3), S. 038003.
- Wagner, R.; Saxenhuber, D.; Ramlau, R.; Hubmer, S. (2022) Direction dependent point spread function reconstruction for multi-conjugate adaptive optics on giant segmented mirror telescopes. Astron. Comput., Bd. 40, S. ARTN 100590.DOI RIS ENW BIB
- Hubmer, Simon; Ramlau, Ronny; Weissinger, Lukas (2022) On regularization via frame decompositions with applications in tomography. Inverse Probl., Bd. 38 (5), S. ARTN 055003.DOI RIS ENW BIB
- Stadler, Bernadett,; Ramlau, Ronny (2022) Performance of an iterative wavelet reconstructor for the Multi-conjugate Adaptive Optics Relay of the Extremely Large Telescope. Journal of Astronomical Telescopes, Instruments, and Systems, Bd. 8 (2), S. 021503.
- Hubmer, Simon; Ploier, Alexander; Ramlau, Ronny; Fosodeder, Peter; van Frank, Sandrine (2022) A mathematical approach towards THz tomography for non-destructive imaging. Inverse Problems and Imaging, Bd. 16 (1), S. 68-88.DOI RIS ENW BIB
- Hinterer, Fabian; Schneider, Magdalena C.; Hubmer, Simon; Lopez-Martinez, Montserrat; Zelger, Philipp et al. [..] (2022) Robust and bias-free localization of individual fixed dipole emitters achieving the Cramer Rao bound for applications in cryo-single molecule localization microscopy. PLoS One, Bd. 17 (2), S. ARTN e0263500.DOI RIS ENW BIB
- Gerth, Daniel; Ramlau, Ronny (2021) Estimating Solution Smoothness and Data Noise with Tikhonov Regularization. Numer. Funct. Anal. Optim.DOI RIS ENW BIB
- Brunner, Elisabeth; Shatokhina, Julia; Shirazi, Muhammad Faizan; Drexler, Wolfgang; Leitgeb, Rainer et al. [..] (2021) Retinal adaptive optics imaging with a pyramid wavefront sensor. Biomed. Opt. Express, Bd. 12 (10), S. 5969-5990.DOI RIS ENW BIB
- Ramlau, Ronny; Soodhalter, Kirk M.; Hutterer, Victoria (2021) SUBSPACE RECYCLING-BASED REGULARIZATION METHODS. SIAM J. Matrix Anal. Appl., Bd. 42 (4), S. 1480-1505.DOI RIS ENW BIB
- Fosodeder, Peter; Hubmer, Simon; Ploier, Alexander; Ramlau, Ronny; van Frank, Sandrine et al. [..] (2021) Phase-contrast THz-CT for non-destructive testing. Opt. Express, Bd. 29 (10), S. 15711-15723.DOI RIS ENW BIB
Book/Monograph
Book/Monograph
- Ramlau, R.; Scherzer, O. (2019) 100 years Mathematical Tomography.DOI RIS ENW BIB
Conference Contribution: Publication in Proceedings
Conference Contribution: Publication in Proceedings
- Grazian, Andrea; Simioni, Matteo; Arcidiacono, Carmelo; Achren, Jani; Clenet, Yann et al. [..] (2022) Status of the PSF reconstruction work package for MICADO at ELT.
- Simioni, Matteo; Arcidiacono, Carmelo; Wagner, Roland; Grazian, Andrea; Gullieuszik, Marco et al. [..] (2022) LBT SOUL data as a science test bench for MICADO PSF-R tool. In: SPIE (Hrsg.), Proc. SPIE 12185, Adaptive Optics Systems VIII, 121850D (SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada): SPIE.DOI RIS ENW BIB
- Stadler, Bernadett,; Biasi, Roberto,; Manetti, Mauro,; Ramlau, Ronny, (2022) Parallel Implementation of an iterative solver for atmospheric tomography. In: Engineers, IEEE - Institute of Electrical and Electronics (Hrsg.) (21. International Conference on Computational Science and its Applications (ICCSA)); Cagliari, Italy, S. 123 - 132.
- Simioni, M.; Arcidiacono, C.; Grazian, A.; Clenet, Y.; Davies, R. et al. [..] (2020) MICADO PSF-reconstruction work package description. In: SPIE (Hrsg.) In Reihe: Adaptive Optics Systems VII: SPIE <'https://www.spie.org/Publications/Proceedings/Paper/10.1117/12.2561251?SSO=1'>.DOI RIS ENW BIB
- Ramlau, Ronny; Zeilinger, Werner W.; Wagner, Roland; al., et (2020) MICADO PSF-reconstruction work package description. In: SPIE (Hrsg.) (Adaptive Optics Systems VII) In Reihe: Proc. SPIE 11448: SPIE.
- Hutterer, Victoria; Obereder, Andreas; Raffetseder, Stefan; etal. (2019) Model-based wavefront reconstruction tested on the LOOPS bench. In: AO4ELT6 (Hrsg.) (Adaptive Optics for Extremely Large Telescopes 6); Quebec.RIS ENW BIB
- Ramlau, Ronny; Stadler, Bernadett; Biasi, Roberto; Manetti, Mauro (2019) Feasibility of standard and novel solvers in atmospheric tomography for the ELT. In: AO4ELT (Hrsg.) (Adaptive Optics for Extremely Large Telescopes 6); Quebec, S. 9.RIS ENW BIB
- Davies, Ric; Alves, João; Wagner, Roland; Niebsch, Jenny; Ramlau, Ronny et al. [..] (2018) The MICADO first light imager for the ELT: overview, operation, Simulation., Proceeding of the SPIE Astronomical Telescopes and Instrumentation Conference Austin 2018 (spie. Astronomical Telescopes and Instrumentation) In Reihe: 10702: Ground-based and Airborne Instrumentation for Astronomy VII, S. 107021S.RIS ENW BIB
- Hutterer, Victoria; Ramlau, Ronny; Shatokhina, Iuliia; Obereder, Andreas (2018) Wavefront reconstruction for ELT-sized telescopes with pyramid wavefront sensors. (spie astronomical telescopes and instrumentation); Austin, S. 10703 - 1070344 - 18.
- Davies, R.; Schubert, J.; Hartl, M.; Alves, J.; Clenet, Y. et al. [..] (2016) MICADO: first light imager for the E-ELT., Proceedings SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI (Ground-based and Airborne Instrumentation for Astronomy VI conference); Edinburgh, S. 99081Z.
- R. Ramlau, D. Saxenhuber, M. Yudytskiy (2014) Iterative reconstruction methods in atmospheric tomography: FEWHA, Kaczmarz and Gradient-based algorithm., SPIE, Bd. 31.RIS ENW BIB
- Jenny Niebsch, Ronny Ramlau, Christina Brandt (2011) Unbalances in ultra-precision cutting machinery and the relation to surface quality. (9. Internationale tagung Schwingungen in rotierenden Maschinen); Darmstadt.RIS ENW BIB
- Brandt C., Niebsch J., Maaß P., Ramlau R. (2010) Simulation of Process Machine Interaction for Ultra Precision Turning. (Proceedings of the 2nd International Conference on Process Machine Interactions); Vancouver.RIS ENW BIB
- Brandt, C.; Karimi, H.R.; Piotrowska, I.; Niebsch, J.; Ramlau, R.; Krause, A.; Riemer, O.; Maaß, P. (2008) Process Machine Interaction Model for Turning Processes., Proceedings of the 1st International Conference on Process Machine Interactions; Hannover.RIS ENW BIB
- Jenny Niebsch, Ronny Ramlau (2008) Mathematical Imbalance Determination from Vibrational Measurements and Industrial Applications. (2008 ASME DETC & Computers and Information in Engineering Conference (CIE) 2008).RIS ENW BIB
- Ronny Ramlau, ; Esther Klann, ; Ring, Wolfgang (2007) Simultaneous Reconstruction and Segmentation for Tomography Data. (Special Issue: Sixth International Congress on Industrial Applied Mathematics (ICIAM07) and GAMM Annual Meeting, Zürich 2007) In Reihe: PAMM; Weinheim: WILEY-VCH Verlag GmbH & Co. KGaA, S. 1050301-1050302.Webseite RIS ENW BIB
- Ramlau, R. (2006) Tikhonov regularization with non - standard constraints for Tomography. In: A. K. Louis, F. Natterer, E. T. Quinto (Hrsg.), Mathematical Methods in Tomography In Reihe: Oberwolfach Report, Bd. 34/2006, S. 62-64.RIS ENW BIB
- Jenny Niebsch, Ronny Ramlau Imbalances in high precision cutting machinery. (ASME 2009 International Design Engineering Technical Conferences IDETC); San Diego.RIS ENW BIB
Editorship
Editorship
- (2019) The Radon Transform. The first 100 years and beyond. In Reihe: Radon Series on Computational and Applied Mathematics; Berlin: de Gruyter.RIS ENW BIB
Research Report
Research Report
- Ramlau, Ronny; Koutschan, Christoph; Hofmann, Bernd (2018) On the singular value decomposition of n-fold integration operators. Bericht-Nr. 2018-29; RICAM: Linz.Download RIS ENW BIB
- Wagner, R.; Ramlau, R.; Davies, R.; Alves, J.; Kleijn, G. Verdoes (2018) Mathematical Algorithms for MICADO - First Light Instrument at the European Extremely Large Telescope, in: Mathematics with industry: driving innovation, ECMI Annual Report 2017 (ECMI - European Consortium for Mathematics in Industry).RIS ENW BIB
- M. Yudytskiy, T. Helin and R. Ramlau (2013) A finite element-wavelet hybrid algorithm for atmospheric tomography. Bericht-Nr. 2013-14; RICAM: Linz.
- M. Yudytskiy, T. Helin and R. Ramlau (2013) A frequency dependent preconditioned wavelet method for atmospheric tomography. Bericht-Nr. 2013-13; RICAM: Linz.
- G. Auzinger, A. Obereder, R. Ramlau, M. Rosensteiner, D. Saxenhuber and M. Yudytskiy (2013) AO3: Final Report. Bericht-Nr. 48; ESO:.RIS ENW BIB
- Klann, Esther; Ramlau, Ronny; Ring, Wolfgang (2009) A Mumford-Shah level-set approach for the inversion and segmentation of SPECT/CT data. Bericht-Nr. 2009-06; Johann Radon Institute for Computational and Applied Mathematics: Linz.RIS ENW BIB
- Klann, Esther; Ramlau, Ronny (2007) Regularization by fractional filter methods and data smoothing. Bericht-Nr. 2007-24; Johann Radon Institute for Computational and Applied Mathematics: Linz.RIS ENW BIB
- Auzinger, Günther MPIM -- a flexible method for extension of obstructed measurements from a Shack-Hartmann Sensor to a full square area. Bericht-Nr. 12;.RIS ENW BIB
- al., R Ramlau et Final Report AO1: Introductory study Austrian In-Kind Contribution Mathematical Algorithms and Software for ELT Adaptive Optics. Bericht-Nr. 2;.RIS ENW BIB
- Zhariy, G. Auzinger and A. Obereder and R. Ramlau and M. Rosensteiner and I. Shatokhina and M. Yudytskiy and M. Mid Term Review AO4: SCAO / XAO. Bericht-Nr. 16; ESO:.RIS ENW BIB
- Yudytskiy, T. Helin and A. Obereder and R. Ramlau and M. Rosensteiner and M. Mid Term Review AO2: MCAO. Bericht-Nr. 17; ESO:.RIS ENW BIB
- Rosensteiner, R. Ramlau and M. A Kaczmarz type reconstructor for MCAO data. Bericht-Nr. 19;.RIS ENW BIB
- R. Ramlau, G. Auzinger, A. Obereder, M. Rosensteiner, and M. Yudytskiy Mid Term Review AO3: MOAO. Bericht-Nr. 22; ESO:.RIS ENW BIB
- R. Ramlau, G. Auzinger, A. Obereder, M. Rosensteiner, Iu. Shatokhina, and M. Yudytskiy AO4: Final Report. Bericht-Nr. 28; ESO:.RIS ENW BIB
- R. Ramlau, G. Auzinger, A. Obereder, M. Rosensteiner, D. Saxenhuber, and M. Yudytskiy AO2: Final Report. Bericht-Nr. 40; ESO:.RIS ENW BIB
- Shatokhina, Iuliia Simulation of the non-modulated pyramid wavefront sensor. Bericht-Nr. 7;.RIS ENW BIB
- Auzinger, Günther Technical report on the SVD method for a wavefront reconstruction based on Shack-Hartmann sensor measurements. Bericht-Nr. 4;.RIS ENW BIB
- Obereder, Andreas Applying the CuRe on modulated Pyramid-WFS measurements. Bericht-Nr. 10;.RIS ENW BIB
- Obereder, Andreas Eighteen months technical report of the austrian in-kind project AO. Bericht-Nr. 8;.RIS ENW BIB
- Obereder, Andreas Simulation of the non-modulated pyramid wavefront sensor. Bericht-Nr. 1;.RIS ENW BIB
Other publication
Other publication
- Obereder, Andreas; Ramlau, Ronny; Shatokhina, Iuliia Fast wavefront reconstruction algorithms for adaptive optics in astronomy. Conference Paper: Symposium on Mathematical Optics, Image Modelling and Algorithms, 20.-23. 6. 2016 Hanover, Germany.Webseite RIS ENW BIB
More Publications
More Publications
R. Ramlau, L. Dykes, L. Reichel, K. Soodhalter, R. Wagner
Lanczos-based fast blind deconvolution methods
Journal of Computational and Applied Mathematics, Vol. 382, 15 January 2021, 113067
https://doi.org/10.1016/j.cam.2020.113067
Hinterer, S. Hubmer, R. Ramlau
A note on the minimization of a Tikhonov functional with ℓ 1-penalty
Inverse Problems 36 (7), June 2020
https://doi.org/10.1088/1361-6420/ab89c2
I. Shatokhina, V. Hutterer, R. Ramlau
Review on methods for wavefront reconstruction from pyramid wavefront sensor data
Journal of Astronomical Telescopes, Instruments and Systems 6(1), 010901 (2020)
https://doi.org/10.1117/1.JATIS.6.1.010901
R. Ramlau, R. Ke, R. Wagner, R. Chan
Reconstruction of the High Resolution Phase in a Closed Loop Adaptive Optics System
SIAM Journal on Imaging Sciences, Vol. 13, Nb 2, p. 775-806, May 2020
DOI. 10.1137/19M1258426