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Hierarchical Multi-resolution Finite Element Model for Soft Body Simulation

  • Matthieu Nesme
  • François Faure
  • Yohan Payan
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4072)

Abstract

The complexity of most surgical models has not allowed interactive simulations on standard computers. We propose a new framework to finely control the resolution of the models. This allows us to dynamically concentrate the computational force where it is most needed.

Given the segmented scan of an object to simulate, we first compute a bounding box and then recursively subdivide it where needed. The cells of this octree structure are labelled with mechanical properties based on material parameters and fill rate. An efficient physical simulation is then performed using hierarchical hexaedral finite elements. The object surface can be used for rendering and to apply boundary conditions.

Compared with traditional finite element approaches, our method dramatically simplifies the task of volume meshing in order to facilitate the using of patient specific models, and increases the propagation of the deformations.

Keywords

Virtual Reality Hierarchical Approach Local Frame Finite Element Computation Deformable Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Matthieu Nesme
    • 1
    • 2
  • François Faure
    • 1
  • Yohan Payan
    • 2
  1. 1.GRAVIR/IMAG-INRIA 
  2. 2.TIMC/IMAGGrenobleFrance

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