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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/2-experiment.tex
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\item The nine visuo-haptic textures used in the user study, selected from the HaTT database \cite{culbertson2014one}.
The texture names were never shown, so as to prevent the use of the user's visual or haptic memory of the textures.
\item Experimental setup.
Participant sat in front of the tangible surfaces, which were augmented with visual textures displayed by the HoloLens~2 AR headset and haptic roughness textures rendered by the vibrotactile haptic device placed on the middle index phalanx.
Participant sat in front of the tangible surfaces, which were augmented with visual textures displayed by the HoloLens~2 \AR headset and haptic roughness textures rendered by the vibrotactile haptic device placed on the middle index phalanx.
A webcam above the surfaces tracked the finger movements.
\item First person view of the user study, as seen through the immersive AR headset HoloLens~2.
\item First person view of the user study, as seen through the immersive \AR headset HoloLens~2.
The visual texture overlays are statically displayed on the surfaces, allowing the user to move around to view them from different angles.
The haptic roughness texture is generated based on HaTT data-driven texture models and finger speed, and it is rendered on the middle index phalanx as it slides on the considered surface.
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\subfig[0.32]{experiment/view}
\end{subfigs}
The user study aimed at analyzing the user perception of tangible surfaces when augmented through a visuo-haptic texture using AR and vibrotactile haptic feedback provided on the finger touching the surfaces.
The user study aimed at analyzing the user perception of tangible surfaces when augmented through a visuo-haptic texture using \AR and vibrotactile haptic feedback provided on the finger touching the surfaces.
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Nine representative visuo-haptic texture pairs from the HaTT database \cite{culbertson2014one} were investigated in two tasks:
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@@ -27,7 +27,7 @@ Our objective is to assess which haptic textures were associated with which visu
\subsection{The textures}
\label{textures}
The 100 visuo-haptic texture pairs of the HaTT database \cite{culbertson2014one} were preliminary tested and compared using AR and vibrotactile haptic feedback on the finger on a tangible surface.
The 100 visuo-haptic texture pairs of the HaTT database \cite{culbertson2014one} were preliminary tested and compared using \AR and vibrotactile haptic feedback on the finger on a tangible surface.
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These texture models were chosen as they are visuo-haptic representations of a wide range of real textures that are publicly available online.
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@@ -69,7 +69,7 @@ The user study was held in a quiet room with no windows, with one light source o
Participants were first given written instructions about the experimental setup, the tasks, and the procedure of the user study.
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Then, after having signed an informed consent form, they were asked to seat in front of the table with the experimental setup and to wear the HoloLens~2 AR headset. The experimenter firmly attached the plastic shell encasing the vibrotactile actuator to the middle index phalanx of their dominant hand.
Then, after having signed an informed consent form, they were asked to seat in front of the table with the experimental setup and to wear the HoloLens~2 \AR headset. The experimenter firmly attached the plastic shell encasing the vibrotactile actuator to the middle index phalanx of their dominant hand.
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As the haptic device generated no audible noise, participants did not wear any noise reduction headphones.
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@@ -119,9 +119,9 @@ One participant was left-handed, all others were right-handed; they all performe
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All participants had normal or corrected-to-normal vision and none of them had a known hand or finger impairment.
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They rated their experience with haptics, AR, and VR (\enquote{I use it every month or more}); 10 were experienced with haptics, 2 with AR, and 10 with VR.
They rated their experience with haptics, \AR, and \VR (\enquote{I use it every month or more}); 10 were experienced with haptics, 2 with \AR, and 10 with \VR.
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Experiences were correlated between haptics and AR (\spearman{0.53}), haptics and VR (\spearman{0.61}), and AR and VR (\spearman{0.74}); but not with age (\spearman{-0.06} to \spearman{-0.05}) or gender (\spearman{0.10} to \spearman{0.27}).
Experiences were correlated between haptics and \AR (\spearman{0.53}), haptics and \VR (\spearman{0.61}), and \AR and \VR (\spearman{0.74}); but not with age (\spearman{-0.06} to \spearman{-0.05}) or gender (\spearman{0.10} to \spearman{0.27}).
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Participants were recruited at the university on a voluntary basis.
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