30 lines
2.8 KiB
TeX
30 lines
2.8 KiB
TeX
\section{Conclusion}
|
|
\label{conclusion}
|
|
|
|
In this chapter, we investigated how users perceived simultaneous and co-localized visuo-haptic texture augmentations of real surfaces seen in immersive \OST-\AR and touched directly with the index finger.
|
|
Using the wearable visuo-haptic augmentation system presented in \chapref{vhar_system}, the haptic roughness texture was rendered with on the \HaTT data-driven models and finger speed.
|
|
In a user study, 20 participants rated the coherence, realism and perceived roughness of the combination of nine representative visuo-haptic texture pairs.
|
|
|
|
The results showed that participants consistently identified and matched clusters of visual and haptic textures with similar perceived roughness.
|
|
The texture rankings did indeed show that participants perceived the roughness of haptic textures to be very similar.
|
|
Conversely, there was less consensus on the perceived roughness of visual textures.
|
|
Regarding the final roughness perception ranking of the original visuo-haptic pairs, the haptic roughness sensation dominated the perception.
|
|
This suggests that \AR visual textures that augments real surfaces can be enhanced with a set of data-driven vibrotactile haptic textures in a coherent and realistic manner.
|
|
|
|
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 or object design context, or viewing and touching virtual objects in a museum or a showroom.
|
|
The latter is illustrated in \figref{experiment/use_case}, where a user applies different visuo-haptic textures to a wall, in an interior design scenario, to compare them visually and by touch.
|
|
|
|
We instinctively perceive the properties of everyday objects by touching and exploring them, but we essentially interact with them by grasping in order to manipulate them.
|
|
In this first part, we focused on the perception of wearable and immersive virtual textures that augment real surfaces when touched with the fingertip.
|
|
In the next part, we will propose to improve the direct manipulation with the hand of virtual object with wearable visuo-haptic interaction feedback.
|
|
|
|
\noindentskip The work described in \chapref{vhar_textures} was presented at the EuroHaptics 2024 conference:
|
|
|
|
Erwan Normand, Claudio Pacchierotti, Eric Marchand, and Maud Marchal. \enquote{Augmenting the Texture Perception of Tangible Surfaces in Augmented Reality using Vibrotactile Haptic Stimuli}. In: \textit{EuroHaptics}. Lille, France, July 2024. pp. 469--484.
|
|
|
|
\fig[0.65]{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.
|
|
]
|