Potential of Wrist-worn Vibrotactile Feedback to Enhance the Perception of Virtual Objects during Mid-air Gestures
Michael Julian Kronester, Andreas Riener, Teo Babic
CHI '21: The 2021 ACM CHI Conference on Human Factors in Computing Systems
Session: Late-Breaking Work Day 1 - E
Abstract
Numerous systems based on mid-air gestures have recently been proposed as a digital variant of object manipulation with hands. Simultaneously, however, direct haptic feedback is lost, eliminating an important aspect that we are familiar with from real-life interaction.
We believe that smartwatches, as widely used personal devices, could provide a platform for accessible, flexible, and unobtrusive integration of haptic feedback into mid-air gesture interaction. We prototyped a vibrotactile wrist band with four vibration actuators aiming at communicating invisible, undetectable virtual object properties such as electricity, weight, and tension into 3D haptic experiences. In this paper, we present findings from a user study (n=18) that examined the suitability of different vibration patterns (variation in intensity, temporal profile, rhythm, and location). Results show that all feedback variants have a positive impact on user experience (UX) when interacting with virtual objects. Constant, continuous patterns outweigh the other variants examined.
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Pre-recorded Presentations for the ACM CHI Virtual Conference on Human Factors in Computing Systems, May 8-13, 2021
