Lionel Untereiner

Attaché temporaire d'enseignement et de recherche (1-year contract for half-time teaching and half-time reseach)

Researcher in Computer Science in the Laboratoire des Sciences de l'Ingénieur, de l'Informatique et de l'Imagerie - ICube,
Teaching assistant in the Computer Science Department of the IUT Robert Schuman
Ph.D. of the Université de Strasbourg

Contact

LSIIT UMR 7005 CNRS - UdS
Pôle API
BP 10413
Bd Sébastien Brant
67412 Illkirch cedex
FRANCE

Office C120 
Phone : +33 (0)3 68.85.45.74  
Mail : lionel.untereiner AT unistra.fr

Research

Thesis : Representation of multiresolution meshes : an application to subdivision volumes

Abstract:

Volume meshes are widespread in computer graphics, scientific visualization and numerical computation. Subdivision, simplification or remeshing operations are sometimes used to speed up processing of these meshes. A solution to manage the complexity of the object and numerical processing applied to it consist in presenting this object at different scales. Nevertheless, existing models are designed for specific approaches making them limited to applications for which they were designed.

Our research work present a new model for the representation of multiresolution meshes in any dimension based on the combinatorial maps model. We first applied our model to the multiresolution subdivision volumes. In this framework, we present several refinement algorithms of an initial coarse mesh. These algorithms support hierarchies obtained by regular and adaptive subdivision. Finally, we propose two representations, opposed in term of time and space complexity, of this model.

Keywords:

geometric modeling ; multiresolution representations ; topological models ; combinatorial maps ; subdivision volumes

Thesis directors :
- Dominique Bechmann
- David Cazier

Research topics

Geometric modeling (Topological models / Combinatorial maps)
- Multiresolution extensions
Geometry processing (based on combinatorial maps extensions)
- Multiresolution subdivision volumes
- Multiresolution progressive volume meshes

Software Development

Topological geometric modeling kernel : CGoGN

Publications

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