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Sebastian Boring, Marko Jurmu, Andreas Butz
Scroll, Tilt or Move It: Using Mobile Phones to Continuously Control Pointers on Large Public Screens
In Proceedings of the 21st Annual Conference of the Australian Computer-Human Interaction Special Interest Group (CHISIG) of the Human Factors and Ergonomics Society of Australia (HFESA), Melbourne, Australia, Nov. 2009 (bib)

Large and public displays mostly provide little interactivity due to technical constraints, making it difficult for people to capture interesting information or to influence the screen's content. Through the combination of largescale visual output and the mobile phone as an input device, bidirectional interaction with large public displays can be enabled. In this paper, we propose and compare three different interaction techniques (Scroll, Tilt and Move) for continuous control of a pointer located on a distant display using a mobile phone. Since each of these techniques seemed to have arguments for and against them, we conducted a comparative evaluation and discovered their specific strengths and weaknesses. We briefly report the implementation of the techniques, the design and results of our user study. The experiment revealed that the Move and Tilt can be faster but also introduce higher error rates for selection tasks.