SideBySide: Ad-hoc Multi-user Interaction with Handheld Projectors


Karl D. D. Willis (Carnegie Mellon University)
Ivan Poupyrev (Disney Research Pittsburgh)
Scott Hudson (Carnegie Mellon University)
Moshe Mahler (Disney Research Pittsburgh)

ACM Symposium on User Interface Software and Technology (ACM UIST) 2011

October 17, 2011

SideBySide- Ad-hoc Multi-user Interaction with Handheld Projectors-Image

We introduce SideBySide, a system designed for ad-hoc multi-user interaction with handheld projectors. SideBySide uses device-mounted cameras and hybrid visible/infrared light projectors to track multiple independent projected images in relation to one another. This is accomplished by projecting invisible fiducial markers in the near-infrared spectrum. Our system is completely self-contained and can be deployed as a handheld device without instrumentation of the environment. We present the design and implementation of our system including a hybrid handheld projector to project visible and infrared light, and techniques for tracking projected fiducial markers that move and overlap. We introduce a range of example applications that demonstrate the applicability of our system to real-world scenarios such as mobile content exchange, gaming, and education.

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