Zoom-and-pick: facilitating visual zooming and precision pointing with interactive handheld projectors

  • Authors:

  • Clifton Forlines;Ravin Balakrishnan;Paul Beardsley;Jeroen van Baar;Ramesh Raskar

  • Affiliations:

  • Mitsubishi Electric Research Laboratories, Cambridge, MA;University of Toronto and Mitsubishi Electric Research Laboratories, Cambridge, MA;Mitsubishi Electric Research Laboratories, Cambridge, MA;Mitsubishi Electric Research Laboratories, Cambridge, MA;Mitsubishi Electric Research Laboratories, Cambridge, MA

  • Venue:
  • Proceedings of the 18th annual ACM symposium on User interface software and technology
  • Year:
  • 2005

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Abstract

Designing interfaces for interactive handheld projectors is an exiting new area of research that is currently limited by two problems: hand jitter resulting in poor input control, and possible reduction of image resolution due to the needs of image stabilization and warping algorithms. We present the design and evaluation of a new interaction technique, called zoom-and-pick, that addresses both problems by allowing the user to fluidly zoom in on areas of interest and make accurate target selections. Subtle design features of zoom-and-pick enable pixel-accurate pointing, which is not possible in most freehand interaction techniques. Our evaluation results indicate that zoom-and-pick is significantly more accurate than the standard pointing technique described in our previous work.