In the future mobile devices will have depth sensors. In this paper we study the design space of free-space interactions afforded by mobile depth sensors. Such interactions will have a greater working volume, more fluid control and avoid screen occlusion effects intrinsic to touch screens. This work contributes the first study to show that mobile free-space interactions can be as good as touch. We are also the first to analyze interaction volume usage, resulting in strong implications for how sensors should be placed on mobile devices. We describe a user study evaluating mobile free-space navigation techniques and the impacts of sensor orientation on user experience. Finally, we discuss guidelines for future mobile free-space interaction techniques and sensor design.


Paper PDF


Jones, B, Sodhi, R., Forsyth, D., Bailey, B., and Maciocci, G. “Around device interaction for multiscale navigation.” In Proceedings of the 14th international conference on Human-computer interaction with mobile devices and services, pp. 83-92. ACM, 2012.



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