A physically-based framework for real-time haptic cutting and interaction with 3D continuum models

Alex Lindblad*, George Turkiyyah

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

21 Scopus citations

Abstract

General haptic interaction with solid models requires an underlying physically-based model that can generate, in real-time, the forces and deformations to be rendered as a result of user interaction. In order to allow for a rich set of interactions, the physical model must support real-time topological modifications including the embedding of new elements in the model, and the introduction of cuts in the geometry. In this paper, we describe and demonstrate a physically-based framework for real-time interaction with 3D solid models discretized by finite elements. We present a model formulation that allows for fast progressive updates to be used in modeling the addition of new elements as well as dynamic inter- and intra-element changes in model connectivity. Our motivating applications have been in the area of open suturing simulations where cutting through skin and tissue, undermining skin to separate it from the underlying soft tissue, addition of sutures to close wounds, and manipulation using multiple surgical instruments simultaneously, are all tasks that must be supported. We show a new surgical simulator we recently developed to demonstrate the framework.

Original languageEnglish (US)
Title of host publicationProceedings - SPM 2007
Subtitle of host publicationACM Symposium on Solid and Physical Modeling
Pages421-429
Number of pages9
DOIs
StatePublished - Oct 22 2007
EventSPM 2007: ACM Symposium on Solid and Physical Modeling - Beijing, China
Duration: Jun 4 2007Jun 6 2007

Publication series

NameProceedings - SPM 2007: ACM Symposium on Solid and Physical Modeling

Other

OtherSPM 2007: ACM Symposium on Solid and Physical Modeling
CountryChina
CityBeijing
Period06/4/0706/6/07

Keywords

  • Finite element models
  • Haptic interaction
  • Surgical simulation
  • Topological changes

ASJC Scopus subject areas

  • Computer Science Applications
  • Software
  • Modeling and Simulation

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