Short CV
	Research
	Publications
	Teaching

                        ROMMA

Habilitation a Diriger des Recherches
• Titre: Modelisation Geometrique de Surfaces Lisses: Design et Fairing.
• Version complete (234 pages, pdf, 11MB), Premiere partie (Resume) (78 pages, pdf, 2.2MB)

Research Themes:
• Hierarchical surface modeling
• Multiresolution curve and surface modeling
• Character animation constant volume skinning
• Cloth modeling: wrinkle creation
• Mesh processing Simplification of animated meshes
• Morphing Algorithms
• Constrained geometric modeling
• Irregular mesh interpolation (french)
• Fairing algorithms for NURBS
• Surface interrogation: a survey, focal surfaces
• Stability of free form surfaces

Ph.D. Students:
• Leo Allemand-Giorgis (MENRT) 2012-2015
• Flavien Boussuge (Cifre EADS) 2011-2014
• Seou Ling Ng (co-tutelle USM Malaysia) 2011-2014
• Christopher Weber (DFG-IRTG 1311) 2008-2011
• Damien Rohmer (MENRT) 2007-2011 PhD Thesis, Maître de Conférences CPE Lyon
• Melanie Cornillac (MENRT) 2006-2010, R&D Metrologic Froup,
• Basile Sauvage (MENRT) 2002-2005 PhD Thesis(27.5MB), Maitre de Conferences, ULP Strasbourg
• Alex Yvart (CNRS-BDI) 2001-2004 PhD Thesis(8MB), Renault, Chef de projet
• Riadh Taleb (funding by foreign government) 1997-2001, enseignant de Mathématiques

Research Projects:
• ANR Cosinus ROMMA "Modèles mécaniques robustes pour les assemblages" 2010-2014.
• Network of Excellence AIM@SHAPE Advanced Innovative Modeling of Shape, 2004-2008.
• European project  MINGLE, Multiresolution in Geometric Modeling, EU Research Training Network (RTN), 2000-2003.
• PLATON 2000, (responsible of), AI franco-hellenique: Developement of intuitive CAGD tools for CAD/CAM-technologies, partner: Prof. P. Kaklis, Ship Design and Marine Transport department of NTU Atenes, 2000/2001.

Conference organizations and responsabilities:
• Dagstuhl seminar on Geometric Modeling 2014, Organizer, (Co-chairs: Falai Chen (University Hefei, China), Tor Dokken (Sintef, Norway), Thomas Grandine (The Boeing Company, US), S. Hahmann, Dagstuhl (Germany), May 2014.
• 2013 SIAM Conference on Geometric and Physical Modeling (GD/SPM13), Denver, USA, Conference co-Chair and Program Committee member.
• EUROGRAPHICS 2013, Girona, Spain, IPC International Program Committee.
• SPM'2012 ACM Symposium on Solid and Physical Modeling, Dijon, France, Program co-Chair.
• International Conference on Shape Modeling and Applications 2012, Austin, Texas. Member of Program Committee.
• 2011 SIAM Conference on Geometric and Physical Modeling (GD/SPM11), Orlando, USA, Program co-Chair.
• EUROGRAPHICS 2011, Llandudno, GB, IPC International Program Committee.
• Dagstuhl seminar on Geometric Modeling 2011, Organizer, (Co-chairs: Thomas Grandine (The Boeing Company, US), S. Hahmann, Joerg Peters (USA), Wenping Wang (Hong Kong), Dagstuhl (Germany), May 2011.
• ACM Symposium on Solid and Physical Modeling 2010, Haifa, Israel, Member of Program Committee.
• Geometric Modeling and Processing GMP 2010, Castro Urdiales Spain. Member of Program Committee.
• International Conference on Shape Modeling and Applications 2010, Aix-en-Provence, en France. Member of Program Committee.
• Keynote Speaker, 2009 SIAM/ACM Conference on Geometric and Physical Modeling
  
• 2009 SIAM/ACM Conference on Geometric and Physical Modeling, San Francisco, USA, Member of Program Committee.
• International Conference on Shape Modeling and Applications 2009, Beijing, China. Member of Program Committee.
• Pacific Graphics 2008, Tokyo, Japan, Member of Program Committee.
• Dagstuhl seminar on Geometric Modeling 2008, Organizer, (Co-chairs: Gerald Farin (USA), S. Hahmann, Joerg Peter (USA), Wenping Wang (Hong Kong), Dagstuhl (Germany), May 2008.
• International Conference on Shape Modeling and Applications 2008, Stony Brook University, Stony Brook, New York, USA. Member of Program Committee.
• SIAM Conference on Geometric Design 2007, San Antonio, USA: scientific program committee,
• Pacific Graphics 2007, Maui, Hawaii, Member of Program Committee.
• International Conference on Shape Modeling and Applications 2007, Univeristy of Lyon, France, Member of Program Committee.
• International Conference on Curves and Surfaces 2006, Avignon, France, Organizer of Mini-Symposium (Surface modeling with constraints).
• International Conference on Shape Modeling and Applications 2006, Tohoku Univeristy, Sendai, JAPAN, Member of Program Committee.
• International Conference on Shape Modeling and Applications 2005, MIT Boston, Member of Program Committee.
• Pacific Graphics 2005, Macao, China, Member of Program Committee.
• Dagstuhl seminar on Geometric Modeling 2005, Organizer, (Co-chairs: Gerald Farin (USA), Ron Goldman (USA), Guido Brunnett (Germany), S. Hahmann), Dagstuhl (Germany), May 2005.
• Aim@Shape Harmonization workshop, (Organizer), Grenoble, August 30, 31, 2004.
• IEEE - Eurographics Symposium on Visualization VisSym'03, Grenoble Juin 2003 (Co-chairs: GP. Bonneau UJF-GRAVIR, S.Hahmann INPG-IMAG, C. Hansen Utah).
• Dagstuhl seminar on Geometric Modeling 2002, (Co-chairs: Gerald Farin (USA), Ron Goldman (USA), Guido Brunnett (Germany), S. Hahmann), Dagstuhl (Germany), May 2002. Edition of proceedings
• 5th SIAM Conference on Geometric Design 1997, Nashville, USA: Organization of Minisymposium (Curve/surface fairing and shape optimizationi).

Editorial board (comité éditorial):
• REFIG (revue électronique francophone d'informatique graphique).

  Selected Publications

	An analysis of DMU transformation requirements for structural assembly simulations Flavien Boussuge, Jean-Claude Leon, Stefanie Hahmann, Lionel Fine 8th International Conference on Engineering Computational Technology (ECT'12), Dubrovnik, Croatia (2012) Paper
	Symposium of Solid and Physical Modeling 2012 --- Proceedings published in CAD Stefanie Hahmann, Sara McMains (eds.) Computer Aided Design, Volumme 45 (2), Special Issue, Elsevier 2013 Editorial (pdf) Table of Content
	Sharp feature preserving MLS surface reconstruction based on local feature line approximations C. Weber, S. Hahmann, H. Hagen, GP. Bonneau Graphical Models 74 (6), p. 335-345 (2012) Abstract and results Online Version Paper
	Volume preserving FFD for programmable Graphics hardware S. Hahmann, G.-P. Bonneau, S. Barbier, G. Elber, H. Hagen The Visual Computer, Volume 28, Number 3, p. 231-245 (2012) Paper
	Symposium of Solid and Physical Modeling 2011 --- Proceedings published in CAD Chandrajit Bajaj, Stefanie Hahmann, Myung-Soo Kim (eds.) Computer Aided Design, Volumme 43 (11), Special Issue, Elsevier 2011 Editorial (pdf) Table of Content
	Folded paper Geometry from 2D Pattern and 3D Contour D. Rohmer, M.-P. Cani, S. Hahmann, B. Thibert Eurographics 2011, short paper, Avril 2011.
	Substructure Topology Preserving Simplification of Tetrahedral Meshes F. Vivodtzev, G.-P. Bonneau, S. Hahmann, H. Hagen in Topological Methods in Data Analysis and Visualization, Springer (Ed.), p. 55-66 (2011) Abstract Paper
	Animation Wrinkling: Augmenting Coarse Cloth Simulations with Realistic-Looking Wrinkles D. Rohmer, T. Popa, M.-P. Cani, S. Hahmann, A. Sheffer SIGGRAPH Asia 2010, Seoul ACM Transactions on Graphics 29 (6), (2010) Abstract and results Paper
	Active Geometry for Game Characters D. Rohmer, S. Hahmann, M.-P. Cani Motion in Games (MIG), in Boulic R., Chrysanthou Y. et Komura T. (eds.), Lecture Notes in Computer Science LNCS 6459, p. 170-181 (2010) Abstract and results Paper springerlink.com
	Sharp Feature Detection in Point Clouds C. Weber, S. Hahmann, H. Hagen International Conference on Shape Modeling and Applications, SMI'10, p. 175-186 Aix-en-Provence, France (2010) Abstract and results Paper
	Exact volume preserving skinning with shape control D. Rohmer, S. Hahmann, M.-P. Cani SCA'09, ACM/EG Symposium of Computer Animation 2009 Results and Movie Paper
	Geometric Modelling, Proceedings Dagstuhl 2008 S. Hahmann, G. Farin, J. Peters, W. Wang (eds.) Computing Special Issue Vol. 86 (2-3), Springer 2009 Editorial (pdf) Table of Content
	Local Volume Preservation for Skinned Characters D. Rohmer, S. Hahmann, M.-P. Cani Pacific Graphics 2008 Computer Graphics Forum, Volume 27, Number 7, p. 1919-1927 (2008) Results and Movie Paper
	Computer-Aided Design (2008) Special issue on constrained design of curves and surfaces. P. Kaklis, P. Costantini, S. Hahmann, T. Lyche (eds.) Computer-Aided Design, Volume 40, Issue 1-2, 2008 Editorial
	Detail Preserving Deformation of B-spline Surfaces with Volume Constraint B. Sauvage, S. Hahmann, G.-P. Bonneau, G. Elber Computer Aided Geometric Design Volume 25, Number 8, p. 678-696 (2008) Abstract Preprint
	Volume preservation of multiresolution meshes B. Sauvage, S. Hahmann, G.-P. Bonneau Eurographics 2007, Computer Graphics Forum, Volume 26, Number 3, p. 275-283 (2007) Abstract Paper
	Deforming surface simplification based on dynamic geometry F. Payan, S. Hahmann, G.-P. Bonneau International Conference on Shape Modeling and Applications, SMI'07, p. 71-80 Lyon, France (2007) Abstract Paper
	Multiresolution morphing for planar curves (Springer reference), (ACM reference) S. Hahmann, G.-P. Bonneau, M. Cornillac, B. Caramiaux Computing 79 (2-4), pp. 197-209 (2007) Abstract Paper Preprint (in French: AFIG proceedings (2006))
	Multiresolution analysis G.-P. Bonneau, G. Elber, S. Hahmann, B. Sauvage in Shape analysis and structuring, L. De Floriani and M. Spagnuolo (eds.) Springer Verlag, ISBN 978-3-540-33264-0, pp. 83-114, (2008). Abstract
	Constraint Modeling for Curves and Surfaces in CAGD V. Cheutet, M. Daniel, S. Hahmann, R. La Gréca, J.-C. Léon, R. Maculet, D. Ménegaux, B. Sauvage International Journal of Shape Modeling (IJSM), Volume 13, Number 2, pp. 159-199 (2007). Abstract
	Shape Interrogation - A State of the Art S. Hahmann, A. Belyaev, L. Buse, G. Elber, B. Mourrain, C. Roessl in Shape analysis and structuring, L. De Floriani and M. Spagnuolo (eds.) Springer Verlag, ISBN 978-3-540-33264-0, pp. 1-51, (2008). Abstract
	Length Constrained Multiresolution Deformation for Surface Wrinkling B. Sauvage, S. Hahmann, G.-P. Bonneau International Conference on Shape Modeling and Applications, SMI'06, p. 113-121 Matsushima, Japan (2006) Abstract Full paper (pdf 5.0 MB)
	Hierarchical Triangular Splines Alex Yvart, Stefanie Hahmann, Georges-Pierre Bonneau ACM Transactions on Graphics 24 (4), 1374-1391, (2005) Abstract Full paper (pdf 2.3 MB)
	Smooth Adaptive Fitting of 3D models using hierarchical triangular splines Alex Yvart, Stefanie Hahmann, Georges-Pierre Bonneau International Conference on Shape Modeling and Applications, SMI'05, 13-22 (2005) MIT Boston, IEEE Computer Society Press Abstract Full paper (pdf 757 KB)
	Area Preserving Deformation of multiresolution curves Hahmann S., Sauvage B., Bonneau G-P. Computer Aided Geometric Design 22 (4), pp. 349--367 (2005) Abstract Full paper (pdf 828KB)
	Geometric Modelling, Proceedings Dagstuhl 2005 S. Hahmann, G. Farin, J. Peters, W. Wang (eds.) Computing Special Issue Vol. 79 (2-4), Springer 2007 Editorial (pdf) Table of Content
	Length preserving multiresolution editing of curves Basile Sauvage, Stefanie Hahmann, Georges-Pierre Bonneau Computing 72 (1-2), pp. 161-170 (2004) Abstract Full paper (pdf 376 KB)
	Geometric Modelling, Dagstuhl 2002 Stefanie Hahmann, Guido Brunnett, Gerald Farin, Ron Goldman (eds.) Springer 2004, VIII, 246 p. 104 illus., Softcover ISBN: 3-211-20818-6 Editorial (pdf) Table of Content (pdf)
	Constrained Multiresolution Geometric Modeling Stefanie Hahmann, Gershon Elber in Advances in Multiresolution for Geometric Modeling, N.A. Dodson, M.A. Sabin, and M.I. Floater (eds.), MINGLE 2003 workshop, Springer-Verlag (2004). Abstract Full paper (pdf 757 KB)
	Data Visualisation 2003 Bonneau G.-P., Hahmann S., Hansen C. (eds.) Eurographics/IEEE TCVG. Visualisation Symposium Proceedings. Grenoble, France, May 26-28, 2003 Preface Programme de la conference
	Smooth Polylines on Polygon Meshes Bonneau G.-P., Hahmann S. in G. Brunnett, B. Hamann, H. Mueller (eds.): Geometric Modeling for Scientific Visualization, Springer, pp. 69--84, (2003). Abstract Full paper (pdf 828KB)
	Smooth Curves on Polygonal Meshes Bonneau G.-P., Hahmann S. Visualization'02, Poster Proceedings (2002). Poster
	Subdivision Invariant Polynomial Interpolation Hahmann S., Bonneau G.-P., Yvart A. in Visualization and Mathematics III, H.C. Hege, K. Poltier (eds.), Conference proceedings, Springer Verlag, pp. 191-202, (2003). Abstract
	Polynomial Surfaces interpolating arbitrary triangulations Stefanie Hahmann, Bonneau G.-P. IEEE Transactions on Visualisation and Computer Graphics 9 (1), p. 99-109, (2003). Abstract Full paper (pdf 3.7MB)
	Numero special de la revue CFAO et d'Infographie: Mondes virtuels representation et simulation No. 16 (1), Hermes 2001 Marie-Paule Cani, Stefanie Hahmann, Joelle Thollot (eds.)
	Triangular G1 interpolation by 4-splitting domain triangles Stefanie Hahmann, Bonneau G.-P., CAGD 17 (8), 731-757 (2000) Abstract Full paper (pdf 420 KB) Images (in french)
	Actes des Journees Francaises d'Informatique Graphique Marie-Paule Cani, Stefanie Hahmann, Fabrice Neyret, Joelle Thollot, (2000)
	Visualization techniques for surface analysis Stefanie Hahmann, in C. Bajaj (ed.): Advanced Visualization Techniques, John Wiley, (1999). Abstract and Contents Preprint (pdf 757 KB) Some images of generalized focal surfaces
	Shape improvement of surfaces Stefanie Hahmann, in G. Farin, H. Bieri, G. Brunett, T. DeRose (Eds.), Geometric Modelling, Computing [Suppl], Vol. 13, Springer-Verlag, 1998, pp. 135-152, (1998) Abstract and Images Full paper (pdf 1.62 MB)
	Knot-removal surface fairing using search strategies Stefanie Hahmann, Stefan Konz, CAD 30 (2), pp.131-138 (1998) Abstract Full paper (pdf 864 KB)
	Fairing bicubic B-spline surfaces using simulated annealing Stefanie Hahmann, in Curves and Surfaces with Applications in CAGD, A. Le Mehaute, L. L. Schumaker, C. Rabut (eds.), Vanderbilt University Press, pp. 159--168, (1997) Abstract Full paper (pdf 734 KB)
	Visualization of Deformation Tensor Fields H. Hagen, S. Hahmann, H. Weimer in Nielson G., H. Hagen, and H. Mueller (eds.): Scientific Visualization - Overview, Methodologies and Techniques, IEEE Computer Society Press, pp. 357--371, (1997) Abstract
	BLAC-Wavelets: a multiresolution analysis with non-nested spaces Georges-Pierre Bonneau, Stefanie Hahmann, and Gregory M. Nielson, IEEE Proceedings Visualization'96, pp. 43-48 (1996). Abstract and Results Full Paper
	Visual Stability Analysis of Free Form Surfaces Stefanie Hahmann, Proceedings ISATA, Mecatronics (1995). Abstract Results and images
	Numerical Aspects of Stability Investigations on Surfaces Stefanie Hahmann, Hans Hagen, in Glen Mullineux (ed.): Mathematics on Surfaces VI, pp. 291-308, (1996). Abstract
	Stability Concept for Surfaces, Hans Hagen, Stefanie Hahmann, in Geometric Modelling, Computing [Suppl.] vol. 10, pp. 189-198, (1995) Abstract
	Visualization and Computation of Curvature Behaviour of Free-Form Curves and Surfaces, Hans Hagen, Stefanie Hahmann and Thomas Schreiber, CAD 27, (7), pp. 545-552, (1995). Abstract Full Paper (pdf 6.28 MB)
	Generalized Focal surfaces: a new surface interrogation method, Hans Hagen, Stefanie Hahmann IEEE Proceedings Visualization'92, Boston, pp. 70--76, (1992). Abstract Full Paper (pdf 107 KB without figures) Some images of generalized focal surfaces
	Surface Interrogation Algorithms Hans Hagen, Stefanie Hahmann and Thomas Schreiber, et al. IEEE Computer Graphics and Applications 12 (5), pp. 53--60, (1992). Abstract Full Paper (pdf 16.6 MB)

Miscellaneous

Organisation of a TIPE seminary on Images and Geometry.
Tutorial given at Aim@Shape Summer School of interactive shape modeling TU Darmstadt, 2005.

 

Matières enseignées:

1ère année Ensimag:
• Méthodes Numériques

2ème année Ensimag:
• Algorithmique et structures de données fiche pdf
• Modélisation Géométrique     fiche pdf
• Stage de Programmation Scientifique
• Projects Calcul Scientifique

3ème année Ensimag:
• Visualisation Scientifique (Filière IRV)     fiche pdf
• Modélisation Surfacique (Filière IRV et MCS)     fiche pdf

anciens cours Ensimag:
• 2001-2003 Département Télécom : Algorithmique     fiche pdf
• 2002-2004 Design Géométrique (Filière MCS)     fiche pdf
• 1995-1998 Computational Geometry
• 1995-2001 CAGD et Modèles Géométrique (Filière MCS)

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