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Contact Modelling Based on Displacement Field Redistribution for Surgical Simulation

  • Bryan Lee
  • Dan Popescu
  • Sébastien Ourselin
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3150)

Abstract

We present a novel method of contact modelling for discrete deformable models. Our algorithm is used to simulate contact between rigid surgical tools of arbitrary shape and deformable virtual organs bounded by triangular mesh surfaces. It uses a divide and conquer strategy to redistribute an arbitrary field of displacements on organ surfaces into an equivalent field of displacements at the nodes. The computational complexity depends on the size of the touch field, but not on the size of the mesh representing the organ. Our algorithm results in accurate modelling and can be used in real-time applications requiring haptic feedback.

Keywords

Contact Modelling Collision Detection Haptic Feedback Virtual Organ Tetrahedral Mesh 
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 2004

Authors and Affiliations

  • Bryan Lee
    • 1
    • 2
  • Dan Popescu
    • 1
  • Sébastien Ourselin
    • 1
  1. 1.CSIRO ICT Centre, BioMedIA LabCnr Vimiera & Pembroke RdsMarsfieldAustralia
  2. 2.School of Electrical and Information EngineeringUniversity of SydneySydneyAustralia

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