NDLI: The role of visual-haptic discrepancy in virtual reality environments

Content Provider	IEEE Xplore Digital Library
Author	Scandola, M. Gasperotti, L. Vicentini, M. Fiorini, P.
Copyright Year	2012
Description	Author affiliation: Altair Laboratory, Computer Science Department, University of Verona, Italy (Scandola, M.; Gasperotti, L.; Vicentini, M.; Fiorini, P.)
Abstract	Visual-haptic interactions are of utmost importance for VR surgical simulators. We investigate the role of spatial visual-haptic discrepancy by manipulating the presentation order of visual and force feedback. Participants were asked to indicate the nearer wall between a visual and an pliable haptic virtual surface. We factorially manipulated the discrepancy levels (µ 5, 15, 25 mm) and the stiffness values of the pliable haptic wall, 83 (human fat) and 331 N/m (human skin). Psychophysical curves over depth penetration and latency time inside the wall were estimated. Results showed that haptic and visual walls were indistinguishable among the discrepancy range of 10.57µ23.12 mm for 83N/m and −3.07µ9.11 mm for 331 N/m. The trend of psychophysical curves show as, in presence of discrepancies or errors between an haptic and a visual surface, the overall perception is influenced by the stiffness of the haptic surface, in according with a weighted summation model, showing a direct relation between the stiffness factor and the weight of the haptic component in the model.
Starting Page	289
Ending Page	295
File Size	696368
Page Count	7
File Format	PDF
ISBN	9781467308083
e-ISBN	9781467308090
e-ISBN	9781467308076
DOI	10.1109/HAPTIC.2012.6183804
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-03-04
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization Force Humans Force feedback Solid modeling Training
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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