ABSTRACT
The thumb and the fingers have different flexibility, and thus, gestures performed on the back of a held tablet are suggested to be different from ones performed on the touchscreen with the thumb of grasping hands. APIs for back-of-device gesture detection should consider that difference. In a user study, we recorded vectors for the four most common touch gestures. We found that drag, swipe, and press gestures are significantly differently when executed on the back versus on the front side of a held tablet. Corresponding values are provided that may be used to define gesture detection thresholds for back-of-tablet interaction.
- Android Developers Reference: developer.android.com/reference/android/view/ViewConfiguration.html, 27.7.2013.Google Scholar
- Hiraoka, S., Miyamoto, I. and Tomimatsu, K. 2003. Behind Touch: A text input method for mobile phone by the back and tactile sense interface. Proc. Interaction 2003. Information Processing Society of Japan, 131--138.Google Scholar
- Hoggan, E., Williamson, J., Oulasvirta, A., Nacenta, M., Kristensson, P.O., Lehtiö, A. 2013. Multi-touch rotation gestures: performance and ergonomics. In Proc. CHI '13, 3047--3050. Google ScholarDigital Library
- Odell, D. and Chandrasekaran, V. 2012. Enabling comfortable thumb interaction in tablet computers: a Windows 8 case study. In Proc. of the Human Factors and Ergonomics Society Annual Meeting, 1907--1911.Google Scholar
- Ohtani, T., Hashida, T., Kakehi, Y., and Naemura, T. 2011. Comparison of front touch and back touch while using transparent double-sided touch display. In ACM SIGGRAPH 2011 Posters (SIGGRAPH '11). Google ScholarDigital Library
- Oulasvirta, A., Reichel, A., Li, W., Zhang, Y., Bachynskyi, M., Vertanen, K., Kristensson, P. O. 2013. Improving two-thumb text entry on touchscreen devices. In Proc. CHI '13, 2765--2774. Google ScholarDigital Library
- Vardy, A. 1998. Articulated Human Hand Model with Inter-Joint Dependency Constraints. Computer Science 6752, Comp. Graphics, Project Report, 1--13.Google Scholar
- Wagner, J., Huot, S., and Mackay, W. E. 2012. BiTouch and BiPad: designing bimanual interaction for hand-held tablets. In Proc. CHI'12, 2317--2326. Google ScholarDigital Library
- Wigdor, D., Forlines, C., Baudisch, P., Barnwell, J., and Shen, C. 2007. Lucid touch: a see-through mobile device. In Proc. UIST'07, 269--278. Google ScholarDigital Library
- Wobbrock, J. O., Myers, B. A., Aung, H. H. 2008. The performance of hand postures in front- and back-of-device interaction for mobile computing. International Journal of Human-Computer Studies 66 (12), 857--875. Google ScholarDigital Library
- Wolf, K., Müller-Tomfelde, C., Cheng, K., and Wechsung, I. 2012. Does proprioception guide back-of-device pointing as well as vision? In EA CHI'12, 1739--1744. Google ScholarDigital Library
Index Terms
- Ergonomic characteristics of gestures for front- and back-of-tablets interaction with grasping hands
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