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Fast Prototyping of Virtual Reality Based Surgical Simulators with PhysX-enabled GPU

  • Wai-Man Pang
  • Jing Qin
  • Yim-Pan Chui
  • Pheng-Ann Heng
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6250)

Abstract

We present our experience in fast prototyping of a series of important but computation-intensive functionalities in surgical simulators based on newly released PhysX-enabled GPU. We focus on soft tissue deformation and bleeding simulation, as they are essential but have previously been difficult to be rapidly prototyped. A multilayered soft tissue deformation model is implemented by extending the hardware-accelerated mass-spring system (MSS) in PhysX engine. To ensure accuracy, we configure spring parameters in an analytic way and integrate a fast volume preservation method to overcome the volume loss problem in MSS. Fast bleeding simulation with consideration of both patient behavior and mechanical dynamics is introduced. By making use of the PhysX built-in SPH-based fluid solver with careful assignment of parameters, realistic yet efficient bleeding effects can be achieved. Experimental results demonstrate that our approaches can achieve both interactive frame rates and convincing visual effects even when complex models are involved.

Keywords

Smooth Particle Hydrodynamic Smooth Particle Hydrodynamic Surgical Simulator Multilayered Model Hardware Acceleration 
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 2010

Authors and Affiliations

  • Wai-Man Pang
    • 1
  • Jing Qin
    • 2
  • Yim-Pan Chui
    • 2
  • Pheng-Ann Heng
    • 2
  1. 1.Spatial Media Group, Computer Arts LabUniversity of AizuJapan
  2. 2.Dept. of Computer Science and EngineeringThe Chinese University of Hong Kong 

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