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Putting Your Best Foot Forward: Investigating Real-World Mappings for Foot-based Gestures

Jason Alexander, Teng Han, William Judd, Pourang Irani, Sriram Subramanian, Putting Your Best Foot Forward: Investigating Real-World Mappings for Foot-based Gestures . Proceedings of the 30th International Conference on Human Factors in Computing Systems (CHI 2012). April 2012. PDF, 771 Kbytes.

Abstract

Foot-based gestures have recently received attention as an alternative interaction mechanism in situations where the hands are pre-occupied or unavailable. This paper investigates suitable real-world mappings of foot gestures to invoke commands and interact with virtual workspaces. Our first study identified user preferences for mapping common mobile-device commands to gestures. We distinguish these gestures in terms of discrete and continuous command input. While discrete foot-based input has relatively few parameters to control, continuous input requires careful design considerations on how the usera??s input can be mapped to a control parameter (e.g. the volume knob of the media player). We investigate this issue further through three user-studies. Our results show that rate-based techniques are significantly faster, more accurate and result if far fewer target crossings compared to displacement-based interaction. We discuss these findings and identify design recommendations.

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