AirTouch: Mobile Gesture Interaction with Wearable Tactile Displays
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AirTouch is a wrist-based gesture interface that enables mobile gesture interaction under limited visual attention settings. Since the original Gesture Watch lacked non- visual feedback, visual attention was required. AirTouch addresses this visual distraction issue by adding tactile feedback. The tactile feedback is supported by a new push-to- gesture (PTG) mechanism, which gives the user the ability to cancel the gesture input and causes less fatigue compared to the previous mechanism. A user study was conducted to observe the effect of the tactile feedback and the new PTG. The results show that the added tactile feedback enables more accurate and faster interaction. We also found that the tactile feedback successfully compensates for limited vision. The perceived difficulties and performance time with tactile display under limited vision was similar to having full visual attention without tactile display.