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tangible -> real

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Erwan Normand
2024-10-12 15:24:56 +02:00
parent 000a0a0fc5
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8
2-perception/vhar-system/1-introduction.tex
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@@ -8,11 +8,11 @@ However, this method has not yet been integrated in an \AR context, where the us
%which either constrained hand to a constant speed to keep the signal frequency constant \cite{asano2015vibrotactile,friesen2024perceived}, or used mechanical sensors attached to the hand \cite{friesen2024perceived,strohmeier2017generating}
In this chapter, we propose a \textbf{system for rendering visual and haptic virtual textures that augment tangible surfaces}.
In this chapter, we propose a \textbf{system for rendering visual and haptic virtual textures that augment real surfaces}.
It is implemented with an immersive \OST-\AR headset Microsoft HoloLens~2 and a wearable vibrotactile (voice-coil) device worn on the outside of finger (not covering the fingertip, \secref[related_work]{vhar_haptics}).
The visuo-haptic augmentations can be \textbf{viewed from any angle} and \textbf{explored freely with the bare finger}, as if they were real textures.
To ensure both real-time and reliable renderings, the hand and the tangibles are tracked using a webcam and marker-based tracking.
The haptic textures are rendered as a vibrotactile signal representing a patterned grating texture that is synchronized with the finger movement on the augmented tangible surface.
To ensure both real-time and reliable renderings, the hand and the real surfaces are tracked using a webcam and marker-based tracking.
The haptic textures are rendered as a vibrotactile signal representing a patterned grating texture that is synchronized with the finger movement on the augmented surface.
\noindentskip The contributions of this chapter are:
\begin{itemize}
@@ -26,7 +26,7 @@ The haptic textures are rendered as a vibrotactile signal representing a pattern
\begin{subfigs}{setup}{Visuo-haptic texture rendering system setup. }[][
\item HapCoil-One voice-coil actuator with a fiducial marker on top attached to the middle-phalanx of the user's index finger.
\item Our implementation of the system using a Microsoft HoloLens~2, a webcam for tracking the hand and the tangible surfaces, and an external computer for processing the tracking data and rendering the haptic textures.
\item Our implementation of the system using a Microsoft HoloLens~2, a webcam for tracking the hand and the real surfaces, and an external computer for processing the tracking data and rendering the haptic textures.
]
\subfigsheight{60mm}
\subfig{device}