Proceedings: GI 2012

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

Björn Bollensdorff, Uwe Hahne, Marc Alexa

Proceedings of Graphics Interface 2012: Toronto, Ontario, Canada, 28 - 30 May 2012, 165-172

  • BibTex

    author = {Bollensdorff, Bj{\"o}rn and Hahne, Uwe and Alexa, Marc},
    title = {The effect of perspective projection in multi-touch 3D interaction},
    booktitle = {Proceedings of Graphics Interface 2012},
    series = {GI 2012},
    year = {2012},
    issn = {0713-5424},
    isbn = {978-1-4503-1420-6},
    location = {Toronto, Ontario, Canada},
    pages = {165--172},
    numpages = {8},
    publisher = {Canadian Human-Computer Communications Society},
    address = {Toronto, Ontario, Canada},


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.