SideBySide: ad-hoc multi-user interaction with handheld projectors

  • Authors:
  • Karl D.D. Willis;Ivan Poupyrev;Scott E. Hudson;Moshe Mahler

  • Affiliations:
  • Carnegie Mellon University & Disney Research Pittsburgh, Pittsburgh, PA, USA;Disney Research Pittsburgh, Pittsburgh, PA, USA;Carnegie Mellon University & Disney Research Pittsburgh, Pittsburgh, PA, USA;Disney Research Pittsburgh, Pittsburgh, PA, USA

  • Venue:
  • Proceedings of the 24th annual ACM symposium on User interface software and technology
  • Year:
  • 2011

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Abstract

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.