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Fix acronyms

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Erwan Normand
2024-09-24 15:47:33 +02:00
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2-perception/ar-textures/4-discussion.tex
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\section{Discussion}
\label{discussion}
In this study, we investigated the perception of visuo-haptic texture augmentation of tangible surfaces touched directly with the index fingertip, using visual texture overlays in AR and haptic roughness textures generated by a vibrotactile device worn on the middle index phalanx.
In this study, we investigated the perception of visuo-haptic texture augmentation of tangible surfaces touched directly with the index fingertip, using visual texture overlays in \AR and haptic roughness textures generated by a vibrotactile device worn on the middle index phalanx.
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The nine evaluated pairs of visuo-haptic textures, taken from the HaTT database \cite{culbertson2014one}, are models of real texture captures.
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@@ -41,7 +41,7 @@ The last visuo-haptic roughness ranking (\figref{results_matching_ranking}, righ
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Several strategies were reported: some participants first classified visually and then corrected with haptics, others classified haptically and then integrated visuals.
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While visual sensation did influence perception, as observed in previous haptic AR studies \cite{punpongsanon2015softar,gaffary2017ar,fradin2023humans}, haptic sensation dominated here.
While visual sensation did influence perception, as observed in previous haptic \AR studies \cite{punpongsanon2015softar,gaffary2017ar,fradin2023humans}, haptic sensation dominated here.
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This indicates that participants were more confident and relied more on the haptic roughness perception than on the visual roughness perception when integrating both in one coherent perception.
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Finally, the visual textures used were also simple color captures not meant to be used in an immersive virtual environment.
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However, our objective was not to accurately reproduce real textures, but to alter the perception of simultaneous visual and haptic roughness augmentation of a real surface directly touched by the finger in AR.
However, our objective was not to accurately reproduce real textures, but to alter the perception of simultaneous visual and haptic roughness augmentation of a real surface directly touched by the finger in \AR.
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In addition of these limitations, both visual and haptic texture models should be improved by integrating the rendering of spatially localized breaks, edges or patterns, like real textures \cite{richardson2022learning}, and by being adaptable to individual sensitivities, as personalized haptics is a promising approach \cite{malvezzi2021design,young2020compensating}.
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More generally, a wide range of haptic feedbacks should be integrated to form rich and complete haptic augmentations in AR \cite{maisto2017evaluation,detinguy2018enhancing,salazar2020altering}.
More generally, a wide range of haptic feedbacks should be integrated to form rich and complete haptic augmentations in \AR \cite{maisto2017evaluation,detinguy2018enhancing,salazar2020altering}.