Multi-User Painting on Media Facades Through Live-Video on Mobile Devices

Sven Gehring, Sebastian Boring, Alexander Wiethoff

In: Adjunct Proceedings of the 28th International Conference on Human Factors in Computing Systems. Workshop on Large Displays in Urban Life. ACM International Conference on Human Factors in Computing Systems (CHI-11) May 7-12 Vancouver Canada ACM 2011.


Media facades in urban spaces offer great potential for new forms of collaborative multi-user interaction. We present a way to directly interact with facades at-adistance through live video on mobile devices. We extend the Touch Projector interface to accommodate multiple users by showing individual content on the mobile display that would otherwise clutter the facade's canvas or distract other users. To demonstrate our concept, we built an application that allows for simultaneous painting on a facade. We gathered informal feedback during the ARS Electronica Festival in Linz, Austria and found that our interaction technique is (1) considered easy-to-learn, but (2) may leave users unaware of the actions of others on the same canvas.


Deutsches Forschungszentrum für Künstliche Intelligenz
German Research Center for Artificial Intelligence