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| 1992 | Dr. rer. nat., University of Bonn | | 1993 - 1996 | Postdoc, University of Freiburg | | 1996 - 2001 | Professor (C3), University of Bonn | | 2001 - 2004 | Professor (C4), University of Duisburg-Essen | | Since 2004 | Professor (C4/W3), University of Bonn |
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Variational problems and evolution problems arising in computer vision, in geometry processing, and in materials science are the major driving force of my research.
In computer vision I'm interested in the infinite dimensional geometry of shape spaces equipped with a Riemannian metric which is motivated by physical models of viscous dissipation. A central theme is a general variational time discrete Riemannian calculus on different shape spaces, including discrete geodesics, exponential map and parallel transport. Applications are warping of images or shell surfaces, shape extrapolation, and pattern or texture transfer. A comprehensive convergence theory based on  convergence, finite element and ODE estimates on Hilbert spaces could be developed. I'm also interested in the close links to the theory of optimal transport.
A major goal is to treat textured images and explore inherent multiple scales in image maps. To this end images are considered as pointwise maps into some patch manifold, describing local, high dimensional texture and structure. Furthermore, spline curves and other low dimensional, smooth submanifolds will be particular interest in time dependent data analysis and in geometry animation.
With respect to materials science, I'm particularly interested in two-scale elastic shape optimization and the formation of optimal branching and folding patterns in elastic materials. The minimization of compliance type cost functionals leads to microstructured shapes and branching patterns arising naturally at material interfaces or at boundary incompatibilities.
My focus is on robust a posteriori error control using functional error estimates for BV functionals, duality techniques and relaxation. The aim is an efficient simulation and optimization of the microscopic patterns, and a better understanding of branching-type patterns observed in natural elastic structures, as for example bones and thin sheets. The vision is to carry over the two-scale analysis of elastic bulk material to thin elastic plates and shells.
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DFG Cluster of Excellence “Hausdorff Center for Mathematics”
Deputy coordinator, 2006 – 2012
DFG Cluster of Excellence “Hausdorff Center for Mathematics”
Member of the Board of Directors, since 2006
DFG project “Discrete Riemannian calculus on shape space”
jointly with Karl-Theodor Sturm, in the Collaborative Research Center SFB 1060 “The Mathematics of Emergent Effects”, 2012 - 2020
DFG project “Numerical optimization of shape microstructures”
jointly with Sergio Conti, in the Collaborative Research Center SFB 1060 “The Mathematics of Emergent Effects”, 2012 - 2020
DFG project “Geodesic Paths in Shape Space”
in the research network of the FWF S117 “Geometry + Simulation”, 2012 - 2020
DFG Collaborative Research Center SFB 1060 “The Mathematics of Emergent Effects”
Deputy coordinator, since 2014
Conference “Panorama of Mathematics” (Bonn),
Organizer, 2015
GIF project “A Functional Map Approach to Shape Spaces”
by the German-Israeli Foundation for Scientific Research and Development, jointly with Miri Ben-Chen, 2017 - 2020
Series of Oberwolfach Workshops on “Image and Surface Processing”
Organizer, 2005, 2007, 2011, 2016
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[ 1] Patrick Dondl, Behrend Heeren, Martin Rumpf
Optimization of the branching pattern in coherent phase transitions
C. R. Math. Acad. Sci. Paris , 354: (6): 639--644
2016
DOI: 10.1016/j.crma.2016.03.013[ 2] Martin Rumpf, Benedikt Wirth
Variational time discretization of geodesic calculus
IMA J. Numer. Anal. , 35: (3): 1011--1046
2015
DOI: 10.1093/imanum/dru027[ 3] B. Berkels, A. Effland, M. Rumpf
Time discrete geodesic paths in the space of images
SIAM J. Imaging Sci. , 8: (3): 1457--1488
2015
DOI: 10.1137/140970719[ 4] Sergio Conti, Harald Held, Martin Pach, Martin Rumpf, Rüdiger Schultz
Risk averse shape optimization
SIAM J. Control Optim. , 49: (3): 927--947
2011
DOI: 10.1137/090754315[ 5] U. Clarenz, U. Diewald, G. Dziuk, M. Rumpf, R. Rusu
A finite element method for surface restoration with smooth boundary conditions
Comput. Aided Geom. Design , 21: (5): 427--445
2004
DOI: 10.1016/j.cagd.2004.02.004[ 6] Günther Grün, Martin Rumpf
Nonnegativity preserving convergent schemes for the thin film equation
Numer. Math. , 87: (1): 113--152
2000
DOI: 10.1007/s002110000197[ 7] M. Flucher, M. Rumpf
Bernoulli's free-boundary problem, qualitative theory and numerical approximation
J. Reine Angew. Math. , 486: : 165--204
1997[ 8] Patrick Penzler, Martin Rumpf, Benedikt Wirth
A phase-field model for compliance shape optimization in nonlinear elasticity
ESAIM Control Optim. Calc. Var. , 18: (1): 229--258
2012
DOI: 10.1051/cocv/2010045[ 9] Benjamin Berkels, Alexander Effland, Martin Rumpf
A Posteriori Error Control for the Binary Mumford-Shah Model
Mathematics of Computation
2015
DOI: doi.org/10.1090/mcom/3138[ 10] Benjamin Berkels, Sebastian Bauer, Svenja Ettl, Oliver Arold, Joachim Hornegger, Martin Rumpf
Joint Surface Reconstruction and 4D Deformation Estimation from Sparse Data and Prior Knowledge for Marker-Less Respiratory Motion Tracking
Medical Physics , 40: (9): 091703
2013
DOI: 10.1118/1.4816675 |
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• Computing and Visualization in Science (since 1999)
• SIAM Journal on Imaging Science (since 2007)
• SIAM Journal on Numerical Analysis (since 2015)
• Journal of Mathematical Imaging and Vision (since 2015)
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| 2003 | Plenary lecture, GAMM annual meeting, Padua / Abano Terme, Italy | | 2004 | Plenary lecture, SIAM Conference on Image Science, Salt Lake City, UT, USA | | 2005 | Plenary lecture, EQUADIFF, Bratislava, Slovakia | | 2006 | Plenary lecture, Curves and Surface, Avignon, France | | 2008 | Lecture course, CIME summer school, Cetraro, Italy | | 2010 | Lecture course, CNA summer school, Pittsburgh, PA, USA | | 2013 | Plenary lecture, SSVM, Graz, Austria | | 2015 | Lecture course, CRC summer school, Barcelona, Spain | | 2016 | Geometry Summit, Berlin |
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| 2002 | Chair in Mathematics, University of Zürich, Switzerland | | 2003 | Chair, MATHEON, FU Berlin | | 2012 | Director position of the Weierstrass Institute Berlin combined with a chair at the HU Berlin |
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Olga Wilderotter (2001): “Adaptive Finite-Elemente-Methode für singuläre parabolische Probleme”,
now Professor, HS Karlsruhe
Ulrich Weikard (2002): “Numerische Loesungen der Cahn-Hilliard-Gleichung und der Cahn-Larche-Gleichung”,
now Senior Economist, DekaBank Deutsche Girozentrale
Tobias Preußer (2003): “Anisotropic Geometric Diffusion in Image and Image-Sequence Processing”,
now Professor, Jacobs University Bremen, and Member of Management Board, and Head of Modelling & Simulation, Fraunhofer MEVIS, Bremen
Robert Strzodka (2004): “Hardware Efficient PDE Solvers in Quantized Image Processing”,
now Professor, University of Heidelberg
Benedikt Wirth (2010): “Variational Methods in Shape Space”,
now Associate Professor, University of Münster
Benjamin Berkels (2012): “Joint Methods in imaging based on diffuse image representations”,
now Professor, RWTH Aachen
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