This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
World Haptics 2009 - Third Joint EuroHaptics conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems
Signal manipulation based on perceptual thresholds enhances surface experience with common haptic device
Salt Lake City, UT, USA
March 18-March 20
ISBN: 978-1-4244-3858-7
Marco Vicentini, Computer Science Department, University of Verona, Italy
Debora Botturi, Computer Science Department, University of Verona, Italy
This paper presents evidences of the performance improvement due to perceptual-based force signal manipulation in an interaction task with an haptic device. We hypothesize that sub-threshold forces become perceivable when a vibration waveform is superimposed onto the force signal. We study the human capabilities in perception of harmonic forces, and we observe lower thresholds for sinusoidal waves than for onset force. Starting from these perceptual findings, we involve a frequency signal instead of a signal amplification to allow the tactile human sensors to sharpen the perception of sub-thresholds forces in a teleoperation task. We report on the results obtained from our experiments and on the method used to reach such goal.
Citation:
Marco Vicentini, Debora Botturi, "Signal manipulation based on perceptual thresholds enhances surface experience with common haptic device," whc, pp.133-138, World Haptics 2009 - Third Joint EuroHaptics conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2009
Usage of this product signifies your acceptance of the Terms of Use.