Stefanie Hahmann


Picture Stefanie Hahmann
Professor at the University Grenoble INP – Ensimag                  

Laboratoire Jean Kuntzmann LJK, member of the INRIA team Imagine.


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

logo SMA logo GTMG Logo GDR IM logo-SIAM logo MSTII logo GDR IGRV

Master2  Project 2019

3D sketching in Virtual Reality
Computational Design of Freeform Structures

NEWS:        awarded with the title Solid Modeling Association “FELLOW” in 2019.

NEWS:         FET OPEN  project (EU Horizon 2020, grant no. 862025) started in January  2020 !!    


CLHMC-SMI16The 2D Shape Structure Dataset: A User Annotated Open Access Database github(Project page)


publications (list)

39 Journal papers (international, refereed), 71 Conference papers (refereed, selection committee), 14 Books and proceedings edited, 4 Book chapters.

service activities

Associate Editor of Computers & Graphics (CAG)
Associate Editor of Computer Aided Design (CAD)
Co-chair of University/Ensimag department MMIS (Mathematical Modeling, Images and Simulation)
Grenoble Graduate School MSTII : Responsable de Spécialité Maths-Info

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, 2001, Institut National Polytechnique de Grenoble
Ph.D. Computer Science, 1994, University Kaiserslautern, Germany
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

Since 2006 Professor at Grenoble INP – Ensimag
2008 – 2009 Guest Professor, TU Kaiserslautern
1995 – 2006 Assistant Professor,  Institut National Polytechnique de Grenoble
1991 – 1995 Wissenschaftliche Mitarbeiterin, Universität Kaiserslautern

university and department activities

Chair of University Department, Mathematical Modeling, Images and Simulation MMIS at Ensimag-Grenoble INP
Responsable de Spécialité Maths-Info de la Grenoble Graduate School MSTII
Recruitment committees at French Universities, Applied Maths and Computer Science, since 2009
Comité des études doctorales at Inria Rhone-Alpes, since 2014

recent responsibilities

Chair of GTMG, the French Geometric Modeling working group (GDR-IM and GDR-IGRV)
Solid Modeling Association executive board member
Member of executive board of GDR IGRV
Vice-Chair of SIAM Activity Group on Geometric Modeling (2011-2013)
Program Director of SIAM Activity Group on Geometric Modeling (2009-2011)
Member of the Conseil d’Administration of AFIG
Elected member of the administrative council of  l’UMR LJK – Laboratoire Jean Kuntzmann 2007-2016
Membre CSE INPG, sections 25,26,27 (1998-2002, 2002-2006)
Vice-Présidente CSE INPG, sections 25,26,27 (2002-2006)
Membre Conseil d’Administration Ensimag (1998-2002, 2002-2006)
Membre Conseil Scientifique de l’INPG (2003-2006)

scientific activities

Organisation of international Dagstuhl Seminars on Geometric Modeling at Leibniz Center for Informatics, Germany

2014 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

SMI 2018, Shape Modeling International Conference, Lisbon, Portugal
SPM 2017, ACM Symposium on Solid and Physical Modeling, Berkeley, part of 3SPM 2017, International convention on shape, solid, structure & physical modelling
SPM 2016ACM 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 IEEE VisSym 2003, Grenoble

General Chair

2019 ACM Symposium on Solid and Physical Modeling (SPM19), Vancouver
2013 SIAM Conference on Geometric and Physical Modeling (GD/SPM13), Denver,
USA IEEE VisSym 2003, Grenoble

IPC (International Program Committee)

Eurographics 2011Eurographics 2013Eurographics 2014Eurographics 2016,  Eurographics 2017CAD/Graphics 2013

Technical program committee member

SMP2020, SGP 2019, SPM 2018, SGP 2017, SMI 2017, SMI 2016, CGI 2015, SIAM GD/SPM 2015, SPM 2014, CGI 2014, CGI 2013, SMI 2013, SIAM GD/SPM 2013, SPM 2012. 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 Visualization conference proceedings 1997, 1998, 1999, 2000, Curves and Surfaces, AFA, 1996, 1999

Invited Speaker:

Keynote Speaker, 2009 SIAM/ACM joint conference on Geometric and Physical Modeling, San Francisco (USA) International workshop on Industry CAD Challenges 2007, FHG-IGD Darmstadt (Germany) 6th Israel-Korea Conference, 2005, Haifa (Israel) IMA workshop on Geometric Design, 2001, Institute of Mathematics and Applications, Minneapolis (USA) Invitation to Dagstuhl Seminars on Scientific Visualization 1994199720002007LZI Schloss Dagstuhl Invitation to Dagstuhl Seminars on Geometric Modeling 199319961999, LZI Schloss Dagstuhl

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

Pierre Casati (ANR eRoma) 2018-2021
Youna Le Vaou (Cifre PSA) 2017-2020
Amélie Fondevilla (MENRT) 2016-2019
Tibor Stanko (CEA) 2014-2017, soutenance le 8 décembre 2017, PostDoc at INRIA Sophia Antipolis
Camille Schreck (ERC Expressive) 2013-2016, soutenue le 24 octobre 2016, PostDoc at IST, Austria
Leo Allemand-Giorgis (MENRT) 2012-2015, soutenu le 16 juin 2016
Flavien Boussuge (Cifre EADS) 2011-2014, Product Manager Acoustic Simulation a Siemens PLM
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, 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), Renault, Chef de projet
Riadh Taleb (funding by foreign government) 1997-2001, enseignant de Mathématiques

teaching activities at Ensimag

Ensimag stands for Ecole Nationale Supérieure d’Informatique et de Mathématiques Appliquées de Grenoble.

University and Department Responsabilities:

depuis 2013 Responsable de la filière MMIS (chair of University Department, Mathematical Modeling, Images and Simulation)
2003 – 2009 Responsable de la 3ème année Ensimag
2004 – 2009 Responsable de specialite Math-Info du DRT a l’INPG
2006- 2007 Responsable des Relations industrielles
2002 – 2005 Responsable filière 3A Ensimag: (IRV) Images er Realité Virtuelle.
1997 – 2001 Responsable filière 3A Ensimag: (MCS) Modélisation, Calcul et Simulation


Méthodes Numériques, L3, 36h Cours et TD, Projet // Modélisation Géométrique, M1, 36h cours et TD, mini-projet // Visualisation Scientifique, M2 // Modélisation Surfacique, M2, 36h Cours, mini-projet // Projets Images et Calcul Scientifique, M1

past lectures:

2001-2003 Département Télécom : Algorithmique, M1 Algorithmique et structures de données, M1 2002-2004 Design Géométrique (Filière MCS), M2 1995-1998 Computational Geometry, M2 1995-2001 CAGD et Modèles Géométrique (Filière MCS), M2 1995-2004 Stage de Programmation Scientifique, M1

Polycopiés: Modélisation Géométrique (115 pages), Visualisation Scientifique (130 pages)

Page Etudiants (Downloads)

Publications Stefanie Hahmann

New As-Stiff-As-Needed Surface Deformation Combining ARAP Energy with an Anisotropic Material. Youna Le Vaou, Jean-Claude Léon, Stefanie Hahmann, Stéphane Masfrand, Matthieu Mika. Computer-Aided Design, to be published 2019.   3D Design Of Ancient Garments. Mélanie Carrière, Mélina Skouras, Stefanie Hahmann. GCH 2019 – EUROGRAPHICS conference on Graphics and Cultural Heritage, Nov 2019, Sarajevo, Bosnia and Herzegovina. pp.1-5   Approximate Reconstruction of …