Tactile feedback on mid-air gestural interaction with a large fogscreen

Projected walk-through fogscreens can be used to render user interfaces, but lack inherent tactile feedback, thus hindering the user experience. This study examines this by investigating wireless wearable vibrotactile feedback on mid-air hand gesture interaction with a large fogscreen. Participants (n = 20) selected objects from a fogscreen by tapping and dwell-based gestural techniques. The results showed that the participants preferred the tactile feedback. Further, while tapping was the most effective selection gesture, dwell-based target selection required haptic feedback to feel natural.