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PosterPointing: Making Paper Displays Interactive Using Mobile Devices

In this paper we explore the potential for creating large pseudo-displays using posters instead of touchscreens. Interactive public displays are common in city centres, but may not be accessible to emergent users. However, the prevalence of increasingly smart, sensor-rich mobile devices offers an alternative. The PosterPointing concept uses physical gestures with mobile devices around printed media in order to explore a rich set of interactions. We created a prototype to investigate the feasibility of one method of enabling this, and performed a study to understand how emergent users might gesture using a small device to interact with two larger surface scenarios. Our results show a range of gestures and combinations of phone and paper surface, and offer suggestions for how the design might be used in future.