Dynamic tactile guidance for visual search tasks

  • Authors:
  • Ville Lehtinen;Antti Oulasvirta;Antti Salovaara;Petteri Nurmi

  • Affiliations:
  • Aalto University & University of Helsinki, Helsinki, Finland;Max Planck Institute for Informatics, Saarbrucken, Germany;Aalto University & University of Helsinki, Helsinki, Finland;Aalto University & University of Helsinki, Helsinki, Finland

  • Venue:
  • Proceedings of the 25th annual ACM symposium on User interface software and technology
  • Year:
  • 2012

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Abstract

Visual search in large real-world scenes is both time consuming and frustrating, because the search becomes serial when items are visually similar. Tactile guidance techniques can facilitate search by allowing visual attention to focus on a subregion of the scene. We present a technique for dynamic tactile cueing that couples hand position with a scene position and uses tactile feedback to guide the hand actively toward the target. We demonstrate substantial improvements in task performance over a baseline of visual search only, when the scene's complexity increases. Analyzing task performance, we demonstrate that the effect of visual complexity can be practically eliminated through improved spatial precision of the guidance.