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Ville Lehtinen


Publications by Ville Lehtinen (bibliography)

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Lehtinen, Ville, Oulasvirta, Antti, Salovaara, Antti and Nurmi, Petteri (2012): Dynamic tactile guidance for visual search tasks. In: Proceedings of the 2012 ACM Symposium on User Interface Software and Technology 2012. pp. 445-452. http://dx.doi.org/10.1145/2380116.2380173

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.

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