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Typing on Glasses: Adapting Text Entry to Smart Eyewear

Tovi Grossman, Xiang Anthony Chen, George Fitzmaurice

ACM International Conference on Human-Computer Interaction with Mobile Devices and Services
2015

Typing on glasses (3:01 min.)

Video title (x:xx min.)

Abstract

Text entry for smart eyewear is generally limited to speech-based input due to constraints of the input channels. However, many smart eyewear devices are now including a side touchpad making gesture-based text entry feasible. The Swipeboard technique, recently proposed for ultra-small touch screens such as smart watches, may be particularly suitable for smart eyewear: unlike other recent text-entry techniques for small devices, it supports eyes-free input. We investigate the limitations and feasibility of implementing Swipeboard on smart eyewear, using the side touch pad for input. Our first study reveals usability and recognition problems of using the side touch pad to perform the required gestures. To address these problems, we propose SwipeZone, which replaces diagonal gestures with zone-specific swipes. In a text entry study, we show that our redesign achieved a WPM rate of 8.73, 15.2% higher than Swipeboard, with a statistically significant improvement in the last half of the study blocks.

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The nature and quality of interaction can be dramatically affected by both the input sensing capabilities and output display characteristics of an interactive system. We are interested in exploring novel input and output configurations to help guide and inform future system designs that may be deployed on a wider scale as these technologies mature.

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