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Erwan Normand
2024-09-24 15:15:30 +02:00
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2-perception/ar-textures/1-introduction.tex
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\section{Introduction}
\label{introduction}
When we look at the surface of an everyday object, we then touch it to confirm or contrast our initial visual impression and to estimate the properties of the object \cite{ernst2002humans}.
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One of the main characteristics of a textured surface is its roughness, \ie the micro-geometry of the material \cite{klatzky2003feeling}, which is perceived equally well and similarly by both sight and touch \cite{bergmanntiest2007haptic,baumgartner2013visual,vardar2019fingertip}.

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2-perception/ar-textures/5-conclusion.tex
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\label{conclusion}
\fig[0.6]{experiment/use_case}{%
Illustration of the texture augmentation in AR through an interior design scenario. %
A user wearing an AR headset and a wearable vibrotactile haptic device worn on their index is applying different virtual visuo-haptic textures to a real wall to compare them visually and by touch.
Illustration of the texture augmentation in AR through an interior design scenario. %
A user wearing an AR headset and a wearable vibrotactile haptic device worn on their index is applying different virtual visuo-haptic textures to a real wall to compare them visually and by touch.
}
We investigated how users perceived visuo-haptic roughness texture augmentations on tangible surfaces seen in immersive OST-AR and touched directly with the index finger.
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This paves the way for new AR applications capable of augmenting a real environment with virtual visuo-haptic textures, such as visuo-haptic painting in artistic, object design or interior design contexts.
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The latter is illustrated in \figref{experiment/use_case}, where a user applies different visuo-haptic textures to a wall to compare them visually and by touch.
The latter is illustrated in \figref{experiment/use_case}, where a user applies different visuo-haptic textures to a wall to compare them visually and by touch.