Difference between revisions of "Geometric Modeling, Simulation and Interaction"
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===Results=== | ===Results=== | ||
| − | ===Adaptative and multiresolution volumic model=== | + | ====Adaptative and multiresolution volumic model==== |
A strong trend in geometric modeling is to use multiresolution to represent objects at different scales. We proposed a model quite original, combinatorial maps multiresolution model based on combinatorial maps. This work was extended with the thesis of Lionel Untereiner [8-UNTE13] in any dimension of meshes. We defined topological and geometric operators to first work on dimension 3 tetrahedral and hexahedral meshes, and more generally on arbitrary topologies with a multi-scale approach [3-UCB12, 2-UCB13]. | A strong trend in geometric modeling is to use multiresolution to represent objects at different scales. We proposed a model quite original, combinatorial maps multiresolution model based on combinatorial maps. This work was extended with the thesis of Lionel Untereiner [8-UNTE13] in any dimension of meshes. We defined topological and geometric operators to first work on dimension 3 tetrahedral and hexahedral meshes, and more generally on arbitrary topologies with a multi-scale approach [3-UCB12, 2-UCB13]. | ||
If multiresolution representations are studied for long time for surfaces, multiresolution models supporting volumetric representations or greater dimension are very rare and limited to very specific applications. The development of generic models with multiresolution simplification operators, subdivision and refinement both topological and geometrical is a major issue in geometric modeling. This work was implemented in the modeling platform CGoGN [4-KUJT13]. An implicit representation, more compact, also has been proposed [2-UKCB15]. | If multiresolution representations are studied for long time for surfaces, multiresolution models supporting volumetric representations or greater dimension are very rare and limited to very specific applications. The development of generic models with multiresolution simplification operators, subdivision and refinement both topological and geometrical is a major issue in geometric modeling. This work was implemented in the modeling platform CGoGN [4-KUJT13]. An implicit representation, more compact, also has been proposed [2-UKCB15]. | ||
| − | ===Détection des collisions dans des scènes en mouvement==== | + | ====Détection des collisions dans des scènes en mouvement==== |
| − | ===Simulation de découpe en temps réel=== | + | ====Simulation de découpe en temps réel==== |
| − | === | + | ====Separation of degrees of freedom for manipulating objects==== |
Our interaction concern is to improve the creation and interactive manipulation of digital objects. The hopes raised by the virtual reality in the beginning, was that the immersive environment would be likely to improve the perception of 3D objects. In fact, if stereoscopic vision provides a feeling of 3D, it makes them less accurate direct manipulation. Our goal has been to offer solutions that leverage these immersive environments. | Our interaction concern is to improve the creation and interactive manipulation of digital objects. The hopes raised by the virtual reality in the beginning, was that the immersive environment would be likely to improve the perception of 3D objects. In fact, if stereoscopic vision provides a feeling of 3D, it makes them less accurate direct manipulation. Our goal has been to offer solutions that leverage these immersive environments. | ||
We got convincing results for positioning and orientation tasks of an object through the separation of degrees of freedom (DOF) and the use of proprioception (awareness that one has to position its own body). We have shown that, contrary to the approach generally operated, based on maximum integration of the different DOF for such type of tasks, it is preferable to isolate the control of the dimensions if we require a significant level of accuracy in the final phase of the task. In consecration of this work, we have obtained a publication in the best international conference IEEE Virtual Reality VR'2011 [4-VCB11] where this year it was to be the only long accepted paper from a French laboratory. | We got convincing results for positioning and orientation tasks of an object through the separation of degrees of freedom (DOF) and the use of proprioception (awareness that one has to position its own body). We have shown that, contrary to the approach generally operated, based on maximum integration of the different DOF for such type of tasks, it is preferable to isolate the control of the dimensions if we require a significant level of accuracy in the final phase of the task. In consecration of this work, we have obtained a publication in the best international conference IEEE Virtual Reality VR'2011 [4-VCB11] where this year it was to be the only long accepted paper from a French laboratory. | ||
| − | ===Prédiction et sélection de cibles en environnement dense=== | + | ====Prédiction et sélection de cibles en environnement dense==== |
| − | ===Facteur de perception des distances en environnement virtuel=== | + | ====Facteur de perception des distances en environnement virtuel==== |
===Perspectives=== | ===Perspectives=== | ||
{{PAGE_End}} | {{PAGE_End}} | ||
Revision as of 12:14, 28 April 2016
Geometric Modeling, Simulation and Interaction
Objectives / Challenges
The main objective is to improve the quality in terms of efficiency and robustness of geometric modeling and simulation operations. To achieve this goal, we operate our topological models based on combinatorial maps that facilitate the operations of geometric modeling design through their generic in terms of size and type of cell, and thanks also to the separation of the topology and the embedding of objects which is the basic concept.
Participants
- Two Professors : Dominique Bechmann et David Cazier
- One Senior Researcher : Stephane Cotin
- Three Assitant professors : Antonio Capobianco, Jérôme Grosjean et Pierre Kraemer
- Two Research engineers : Thierry Blandet et Sylvain Thery
- 5 PhD : Sabah Boustila (Project CIMBEES from Dec. 2012 to Sept. 2015 (PhD thesis defended on May 25, 2016)), Christoph Paulus (INRIA contract starting from January 2014), Thomas Pitiot (CNRS / Région Alsace doctoral contract from Oct. 2012 to Sept. 2015 (PhD thesis defended on December 17th, 2015)), Lionel Untereiner (UNISTRA doctoral contract from Oct. 2010 to Sept. 2013 (PhD thesis defended on November 8th, 2013)), Jonathan Wonner (Allocataire Normalien from January 2011 to Dec. 2013 (PhD thesis defended on October 8th, 2013)).
Results
Adaptative and multiresolution volumic model
A strong trend in geometric modeling is to use multiresolution to represent objects at different scales. We proposed a model quite original, combinatorial maps multiresolution model based on combinatorial maps. This work was extended with the thesis of Lionel Untereiner [8-UNTE13] in any dimension of meshes. We defined topological and geometric operators to first work on dimension 3 tetrahedral and hexahedral meshes, and more generally on arbitrary topologies with a multi-scale approach [3-UCB12, 2-UCB13].
If multiresolution representations are studied for long time for surfaces, multiresolution models supporting volumetric representations or greater dimension are very rare and limited to very specific applications. The development of generic models with multiresolution simplification operators, subdivision and refinement both topological and geometrical is a major issue in geometric modeling. This work was implemented in the modeling platform CGoGN [4-KUJT13]. An implicit representation, more compact, also has been proposed [2-UKCB15].
Détection des collisions dans des scènes en mouvement
Simulation de découpe en temps réel
Separation of degrees of freedom for manipulating objects
Our interaction concern is to improve the creation and interactive manipulation of digital objects. The hopes raised by the virtual reality in the beginning, was that the immersive environment would be likely to improve the perception of 3D objects. In fact, if stereoscopic vision provides a feeling of 3D, it makes them less accurate direct manipulation. Our goal has been to offer solutions that leverage these immersive environments.
We got convincing results for positioning and orientation tasks of an object through the separation of degrees of freedom (DOF) and the use of proprioception (awareness that one has to position its own body). We have shown that, contrary to the approach generally operated, based on maximum integration of the different DOF for such type of tasks, it is preferable to isolate the control of the dimensions if we require a significant level of accuracy in the final phase of the task. In consecration of this work, we have obtained a publication in the best international conference IEEE Virtual Reality VR'2011 [4-VCB11] where this year it was to be the only long accepted paper from a French laboratory.