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Erwan Normand
2024-09-27 22:10:59 +02:00
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2-perception/ar-textures/1-introduction.tex
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@@ -10,9 +10,9 @@ By providing timely vibrations synchronized with the movement of the tool or the
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In that sense, data-driven haptic textures have been developed as captures and models of real surfaces, resulting in the Penn Haptic Texture Toolkit (HaTT) database \cite{culbertson2014one}.
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While these virtual haptic textures are perceived as similar to real textures \cite{culbertson2015should}, they have been evaluated using hand-held tools and not yet in a direct finger contact with the surface context, in particular combined with visual textures in an immersive virtual environment.
While these virtual haptic textures are perceived as similar to real textures \cite{culbertson2015should}, they have been evaluated using hand-held tools and not yet in a direct finger contact with the surface context, in particular combined with visual textures in an immersive \VE.
Combined with virtual reality (VR), where the user is immersed in a visual virtual environment, wearable haptic devices have also proven to be effective in modifying the visuo-haptic perception of tangible objects touched with the finger, without needing to modify the object \cite{asano2012vibrotactile,asano2015vibrotactile,salazar2020altering}.
Combined with virtual reality (VR), where the user is immersed in a visual \VE, wearable haptic devices have also proven to be effective in modifying the visuo-haptic perception of tangible objects touched with the finger, without needing to modify the object \cite{asano2012vibrotactile,asano2015vibrotactile,salazar2020altering}.
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Worn on the finger, but not directly on the fingertip to keep it free to interact with tangible objects, they have been used to alter perceived stiffness, softness, friction and local deformations \cite{detinguy2018enhancing,salazar2020altering}.
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@@ -26,7 +26,7 @@ These two factors have been shown to influence the perception of haptic stiffnes
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It remains to be investigated whether simultaneous and co-localized visual and haptic texture augmentation of tangible surfaces in \AR can be perceived in a coherent and realistic manner, and to what extent each sensory modality would contribute to the overall perception of the augmented texture.
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Being able to coherently substitute the visuo-haptic texture of an everyday surface directly touched by a finger is an important step towards new \AR applications capable of visually and haptically augmenting the real environment of a user in a plausible way.
Being able to coherently substitute the visuo-haptic texture of an everyday surface directly touched by a finger is an important step towards new \AR applications capable of visually and haptically augmenting the \RE of a user in a plausible way.
In this paper, we investigate how users perceive a tangible surface touched with the index finger when it is augmented with a visuo-haptic roughness texture using immersive optical see-through \AR (OST-AR) and wearable vibrotactile stimuli provided on the index.
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