Departmental Papers (MEAM)

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Conference Paper

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Suggested Citation:
Kuchenbecker, Katherine J. Jonathan P. Fiene and Gunter Niemeyer. (2005). Event-Based Haptics and Acceleration Matching: Portraying and Assessing the Realism of Contact. First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. Pisa, Italy. March 18-20, 2005.

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Contact in a typical haptic environment resembles the experience of tapping on soft foam, rather than on a hard object. Event-based, high-frequency transient forces must be superimposed with traditional proportional feedback to provide realistic haptic cues at impact. We have developed a new method for matching the accelerations experienced during real contact, inverting a dynamic model of the device to compute appropriate force feedback transients. We evaluated this haptic rendering paradigm by conducting a study in which users blindly rated the realism of tapping on a variety of virtually rendered surfaces as well as on three real objects. Event-based feedback significantly increased the realism of the virtual surfaces, and the acceleration matching strategy was rated similarly to a sample of real wood on a foam substrate. This work provides a new avenue for achieving realism of contact in haptic interactions.



Date Posted: 18 August 2010

This document has been peer reviewed.