TR2005-095

Zoom-and-Pick: Facilitating Visual Zooming and Precision Pointing with Interactive Handheld Projectors


    •  Forlines, C.; Balakrishnan, R.; Beardsley, P.; van Baar, J.; Raskar, R., "Zoom-and-Pick: Facilitating Visual Zooming and Precision Pointing with Interactive Handheld Projectors", ACM Symposium on User Interface Software and Technology (UIST), October 2005, pp. 73-82.
      BibTeX Download PDF
      • @inproceedings{Forlines2005oct2,
      • author = {Forlines, C. and Balakrishnan, R. and Beardsley, P. and {van Baar}, J. and Raskar, R.},
      • title = {Zoom-and-Pick: Facilitating Visual Zooming and Precision Pointing with Interactive Handheld Projectors},
      • booktitle = {ACM Symposium on User Interface Software and Technology (UIST)},
      • year = 2005,
      • pages = {73--82},
      • month = oct,
      • url = {http://www.merl.com/publications/TR2005-095}
      • }
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  • Research Area:

    Computer Vision


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.