The effect of perspective projection in multi-touch 3D interaction

  • Authors:
  • Björn Bollensdorff;Uwe Hahne;Marc Alexa

  • Affiliations:
  • TU Berlin;TU Berlin;TU Berlin

  • Venue:
  • Proceedings of Graphics Interface 2012
  • Year:
  • 2012

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Abstract

In this paper we describe the development and comparison of interaction techniques for 3D direct manipulation on multi-touch enabled devices. The literature on this topic currently shows diverging arguments for what enables effective and/or intuitive interaction. We argue that the limiting problem is the projection from 3D to 2D in input and output; and in particular how transformations in 3D are mapped to the interaction surface. Not only does this argument explain the divergence in the literature -- it also leads to improved interaction metaphors, similar but not identical to widgets in other 3D interaction domains. We show in a controlled experiment that adapted interaction widgets are significantly superior to other approaches in the context of multi-touch interaction.