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Erwan Normand
2024-08-02 18:21:22 +02:00
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3-manipulation/visuo-haptic-hand/5-conclusion.tex
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This paper presented two human subject studies aimed at better understanding the role of visuo-haptic rendering of the hand during virtual object manipulation in OST-AR.
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The first experiment compared six visual hand renderings in two representative manipulation tasks in AR, \ie push-and-slide and grasp-and-place of a virtual object.
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Results show that a visual hand rendering improved the performance, perceived effectiveness, and user confidence.
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A skeleton rendering, providing a detailed view of the tracked joints and phalanges while not hiding the real hand, was the most performant and effective.
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The second experiment compared, in the same two manipulation tasks as before, sixteen visuo-haptic renderings of the hand as the combination of two vibrotactile contact techniques, provided at four different delocalized positions on the hand, and with the two most representative visual hand renderings established in the first experiment, \ie the skeleton hand rendering and no hand rendering.
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Results show that delocalized vibrotactile haptic hand rendering improved the perceived effectiveness, realism, and usefulness when it is provided close to the contact point.