Stefanie Hahmann


Picture Stefanie Hahmann Professor at the University Grenoble INP – Ensimag
Laboratoire Jean Kuntzmann LJK, member of the INRIA team Anima.


Prof. Dr. Stefanie Hahmann INRIA – LJK, 655 av. de l’Europe, 38334 Saint Ismier (France) Tel : (+33) 476 61 55 54 email: Stefanie.Hahmann @ / @

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  Lauréate du Prix de recherche Gay Lussac – Humboldt (Humboldt Forschungspreis) 2022
Best Paper Award at SPM 2022
FET OPEN  project (EU Horizon 2020, grant no. 862025)  2020-2024

Master / PhD / PostDocs 2022

Computer Graphics Design of Auxetic Metamaterials
3D sketching in Virtual Reality
Animation of Antique Statues and Engravings


Short Bio

Research in Computer Graphics
Within the field of Geometric Modeling my research centers on geometric models and computer tools for the expressive representation, synthesis, modeling and fabrication of three-dimensional (3D) objects. The theoretical basis for this are the differential geometric properties of freeform surfaces, which can be used primarily to allow manipulation of virtual 3D objects accessible to the user with user-friendly algorithms.
Contributions over the years include high-level models for 3D shapes and animation, reconstruction of shapes from sketches and sensor data, multiresolution methods, feature detection, shape deformation tools, applications to CAD/CAM, my early surface fairing and interrogation algorithms.

publications (selected publications)

43 Journal papers (international, refereed), 72 Conference papers (refereed, selection committee), 14 Books and proceedings edited, 4 Book chapters.

editorial activities

Associate Editor of Computers & Graphics (CAG)
Associate Editor of Computer Aided Design (CAD)

research topics in Geometric Modeling and Computer Graphics

Sketch-based modeling: garment design, terrain editing, developable surfaces,
Shape-from-Sensors: Surface reconstruction from micro-sensors
Modeling and animation of crumpling paper
Animation of deformable objects with skinning
Surface splines, G1 interpolation of quad meshes, G1 triangular splines
CAD applications: computing interface in assemblies, Idealization transforms, extraction of generative processes from B-rep shapes
Multiresolution curves and surfacesHierarchical surface models
Deformation of surfaces: volume preserving FFD,
Morphing, Simplification
Surface Interrogation: generalized focal surfaces
Fairing algorithms for NURBS.


Habilitation Computer Science, 2001, Institut National Polytechnique de Grenoble
Ph.D. Computer Science, 1994, University Kaiserslautern, Germany (advisor H.Hagen)
M.S. Applied Mathematics, 1989, ENS Cachan and University Paris VI, France
M.S. Mathematics and Computer Science,1990, TU Braunschweig, Germany
B.S. Mathematics, 1986, TU Braunschweig, Germany

appointments held

2022 – 2023 Guest Professor, Universität Leibzig, invited by Prof. Dr. G. Scheuermann
2008 – 2009 Guest Professor, TU Kaiserslautern, invited by Prof. Dr. H. Hagen
Since 2006 Professor at Grenoble INP – Ensimag
1995 – 2006 Assistant Professor,  Institut National Polytechnique de Grenoble
1991 – 1995 Wissenschaftliche Mitarbeiterin, Universität Kaiserslautern


2022 Gay Lussac-Humboldt-Forschungspreis (Humboldt Research Award)
2019 SMA Fellow Award
2008 DFG Mercator Fellow
1988 DAAD Fellow

university and department activities

Chair of University Department, Mathematical Modeling, Images and Simulation MMIS at Ensimag-Grenoble INP
Member of the Scientific Council of the University Grenoble INP
Grenoble Graduate School MSTII : Head of the specialty Math-CS
Member of the doctoral studies Committee at Inria Rhone-Alpes
Member of the advisory board of the Laboratory Jean Kuntzmann, Grenoble (2007-2016)
Member of the Pedagogical and Student Life Commission (CPVE) at Ensimag (2012-2016)
Member of the Scientific Council of the University Grenoble INP (2003-2006)
Member of the board of directors of Ensimag (1998-2006)
Membre CSE INPG, sections 25,26,27 (1998-2002, 2002-2006)
Vice-Présidente CSE INPG, sections 25,26,27 (2002-2006)

service to the community

Member of steering committee of Shape Modeling International, since 2022
Member of the board of directors EG-FR – European Association for Computer Graphics – French chapter, since 2021, Secretary
Member of the Board of directors AFIG – French Association of Computer Graphics since 2021
Chair of GTMG, the French Geometric Modeling working group (GDR-IM and GDR-IGRV) (2006-2019)
Solid Modeling Association executive board member (2013-2017)
Member of executive board of GDR IGRV part of CNRS (until 2019)
Vice-Chair of SIAM Activity Group on Geometric Modeling (2011-2013)
Program Director of SIAM Activity Group on Geometric Modeling (2009-2011)

scientific activities

Organisation of international Dagstuhl Seminars on Geometric Modeling at Leibniz Center for Informatics, Germany 
co-organizers: F. Chen, T.Dokken, T.Grandine, S. Hahmann 2011 co-organizers: T. Grandine, S. Hahmann, J.Peters, W.Wang 2008 co-organizers: G. Farin, S. Hahmann, J.Peters, W. Wang 2005 co-organizers: G.Brunnett, G.Farin, R. Goldman, S.Hahmann 2002 co-organizers: G.Brunnett, G.Farin, R. Goldman, S.Hahmann

Technical Program Chair
EG 2022 (tutorials), Eurographics, Reims, France
SMI 2018, Shape Modeling International Conference, Lisbon, Portugal
SPM 2017, ACM Symposium on Solid and Physical Modeling, Berkeley, part of 3SPM 2017,
SPM 2016, ACM Symposium on Solid and Physical Modeling, Berlin,
SPM 2012, ACM Symposium on Solid and Physical Modeling, Dijon
GD/SPM 2011, SIAM Conference on Geometric and Physical Modeling, Orlando

General Chair
2022 Shape Modeling international (SMI22), Singapore
2021 Shape Modeling International (SMI21), Texas
2019 ACM Symposium on Solid and Physical Modeling (SPM19), Vancouver
2013 SIAM Conference on Geometric and Physical Modeling (GD/SPM13), Denver
2003 IEEE Symposium on Visualization (VisSym03), Grenoble

Technical program committee member
SPM22, SGP2021, SPM2021, SIAM GD2021, SPM2020, SIAM GD2020, SGP 2019, SPM 2018, Eurographics 2017, SGP 2017, SMI 2017, Eurographics 2016, SMI 2016, CGI 2015, SIAM GD/SPM 2015, Eurographics 2014, SPM 2014, CGI 2014, Eurographics 2013, CGI 2013, SMI 2013, SIAM GD/SPM 2013, SPM 2012, Eurographics 2011, SMI 2011, SIAM GD/SPM 2011, SMI 2010, GMP 2010, SPM 2010, SIAM GD/SPM 2009, GMP 2009, SMI 2009, SMI 2008, PG 2008, PG 2007, CAD 2007, SIAM GD 2007, SMI 2006,  PG 2005, SMI 2005, IEEE Vis 1997, 1998, 1999, 2000, Curves and Surfaces 1996, 1999

European projects
PI of FET OPEN (EU Horizon 2020) ADAM2  –  ANALYSIS, DESIGN And MANUFACTURING using MICROSTRUCTURES EU contract no. 862025, 2020-2024
Member of FP6 NETWORK OF EXCELLENCE 2004-2008 – AIM@SHAPE. EU Contract No. 506766.
Member of RESEARCH TRAINING NETWORK (RTN) 2000-2004 – MINGLE. EU Contract No. HPRNCT-1999-00117.

Ph.D. students

Emmanuel Rodriguez (FET-OPEN Project ADAM2) 2020-2023
Youna Le Vaou (Cifre PSA) 2017-2020, Thesis, soutenu le 10 juin 2020.
Amélie Fondevilla (MENRT) 2016-2019, Thesis, soutenu le 18 décembre 2019, Post-Doc at LIRIT Toulouse
Tibor Stanko (CEA) 2014-2017, Thesis, soutenance le 8 décembre 2017, PostDoc at INRIA Sophia Antipolis
Camille Schreck (ERC Expressive) 2013-2016, Thesis, soutenue le 24 octobre 2016, Researcher at INRIA Lorraine
Leo Allemand-Giorgis (MENRT) 2012-2015, Thesis, soutenu le 16 juin 2016
Flavien Boussuge (Cifre EADS) 2011-2014, Thesis, R&D CEA Paris
Christopher Weber (DFG-IRTG 1311) 2008-2011, PostDoc at UC Davis
Damien Rohmer (MENRT) 2007-2011, Thesis, Professor at Ecole Polytechnique, Paris-Saclay
Melanie Cornillac (MENRT) 2006-2010, Thesis, R&D Metrologic Froup
Basile Sauvage (MENRT) 2002-2005, Thesis (27.5MB), Maitre de Conferences, HDR, ULP Strasbourg
Alex Yvart (CNRS-BDI) 2001-2004, Thesis (8MB), R&D Renault
Riadh Taleb (funding by foreign government), 1997-2001, Thesis, professeur de Mathématiques

Teaching at ENSIMAG

 Ecole Nationale Supérieure d’Informatique et de Mathématiques Appliquées de Grenoble
Main courses with responsibility for modules (L3, M1 and M2 levels):
Algorithms and data structures, Numerical methods, lectures and tutorials, lecture with 240 students,Geometric Modeling, lecture and tutorial, 140 pages handout, Surface Modelling, lecture, Scientific Visualisation, lecture, 95 pages handout, Matlab exercises and projects.


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