Evaluating physical/virtual occlusion management techniques for horizontal displays

  • Authors:
  • Waqas Javed;KyungTae Kim;Sohaib Ghani;Niklas Elmqvist

  • Affiliations:
  • School of Electrical & Computer Engineering, Purdue University, West Lafayette, IN;School of Electrical & Computer Engineering, Purdue University, West Lafayette, IN;School of Electrical & Computer Engineering, Purdue University, West Lafayette, IN;School of Electrical & Computer Engineering, Purdue University, West Lafayette, IN

  • Venue:
  • INTERACT'11 Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part III
  • Year:
  • 2011

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Abstract

We evaluate unguided and guided visual search performance for a set of techniques that mitigate occlusion between physical and virtual objects on a tabletop display. The techniques are derived from a general model of hybrid physical/virtual occlusion, and take increasingly drastic measures to make the user aware of, identify, and access hidden objects--but with increasingly spaceconsuming and disruptive impact on the display. Performance is different depending on the visual display, suggesting a tradeoff between management strength and visual space deformation.