Towards a psychophysical evaluation of a surgical simulator for bone-burring

Gavin Brelstaff*, Marco Agus, Andrea Giachetti, Enrico Gobbetti, Gianluigi Zanetti, Antonio Zorcolo, Bruno Picasso, Stefano Sellari Franceschini

*Corresponding author for this work

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

1 Scopus citations

Abstract

The CRS4 experimental bone-burr simulator implements visual and haptic effects through the incorporation of a physics-based contact model and patient-specific data. Psychophysical tests demonstrate that, despite its simplified model and its inherent technological constraints, the simulator can articulate material differences, and that its users can learn to associate virtual bone with real bone material. Tests addressed both surface probing and interior drilling task. We also explore a haptic contrast sensitivity function based on the model's two main parameters: an elastic constant and an erosion factor. Both parameters manifest power-law-like sensitivity with respective exponents of around two and three. Further tests may reveal how well simulator users perceive fine differences in bone material, like those encountered while drilling through real volume boundaries.

Original languageEnglish (US)
Title of host publicationProceedings - APGV 2005
Subtitle of host publication2nd Symposium on Applied Perception in Graphics and Visualization
EditorsS.N. Spencer
Pages139-144
Number of pages6
DOIs
StatePublished - Dec 1 2005
EventAPGV 2005: 2nd Symposium on Applied Perception in Graphics and Visualization - Corona, Spain
Duration: Aug 26 2005Aug 28 2005

Publication series

NameProceedings - APGV 2005: 2nd Symposium on Applied Perception in Graphics and Visualization

Other

OtherAPGV 2005: 2nd Symposium on Applied Perception in Graphics and Visualization
CountrySpain
CityCorona
Period08/26/0508/28/05

Keywords

  • Haptic
  • Psychophysics
  • Surgical simulator
  • Virtual reality

ASJC Scopus subject areas

  • Engineering(all)

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