Exploring Geometric Shapes with Touch

Authors:
Thomas Pietrzak;Andrew Crossan;Stephen A. Brewster;Benoît Martin;Isabelle Pecci
Affiliations:
Université Paul Verlaine, Metz, UFR MIM, île du Saulcy, Metz, France 57006;Department of Computing Science, University of Glasgow, Glasgow, UK;Department of Computing Science, University of Glasgow, Glasgow, UK;Université Paul Verlaine, Metz, UFR MIM, île du Saulcy, Metz, France 57006;Université Paul Verlaine, Metz, UFR MIM, île du Saulcy, Metz, France 57006
Venue:
INTERACT '09 Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part I
Year:
2009

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Abstract

We propose a new technique to help users to explore geometric shapes without vision. This technique is based on a guidance using directional cues with a pin array. This is an alternative to the usual technique that consists of raising the pins corresponding to dark pixels around the cursor. In this paper we compare the exploration of geometric shapes with our new technique in unimanual and bimanual conditions. The users made fewer errors in unimanual condition than in bimanual condition. However they did not explore the shapes more quickly and there was no difference in confidence in their answer.