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Erwan Normand
2025-05-01 22:31:51 +02:00
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5-conclusion/conclusion.tex
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@@ -7,7 +7,7 @@ We conclude this thesis manuscript by summarizing our contributions and the main
\section{Summary}
In this manuscript, we showed how \OST-\AR headsets and wearable haptics can improve direct hand interaction with virtual and augmented objects. % by augmenting the perception of the real and manipulation of the virtual.
In this manuscript, we showed how \OST-\AR headsets and wearable haptics can improve direct hand interaction with virtual and augmented objects.
Wearable haptics can provide rich tactile feedback on virtual objects and augment the perception of real objects, both directly touched by the hand, while preserving freedom of movement and interaction with the \RE.
However, their integration with \AR is still in its infancy and presents many design, technical and human challenges.
We have structured this thesis around two research axes: \textbf{(I) modifying the visuo-haptic texture perception of real surfaces} and \textbf{(II) improving the manipulation of virtual objects}.
@@ -79,7 +79,7 @@ This would allow a complete portable and wearable visuo-haptic system to be used
In our user study, we assessed the effect of touching a vibrotactile texture augmentation with a real hand or a virtual hand, in \AR or \VR.
To control for the visual feedback, we decided not to display the virtual texture so that participants only saw and touched a uniform white real surface.
The visual information of a texture is as important as the haptic sensations for the perception of roughness, and the interaction between the two to form the overall texture perception is complex \cite{bergmanntiest2007haptic,yanagisawa2015effects,vardar2019fingertip}.
In particular, it remains to be investigated how the vibrotactile patterned textures we employed can be represented visually in a convincing way, as the visuo-haptic coupling of such virtual patterned textures is not trivial \cite{unger2011roughness}. % even with real textures \cite{klatzky2003feeling}.
In particular, it remains to be investigated how the vibrotactile patterned textures we employed can be represented visually in a convincing way, as the visuo-haptic coupling of such virtual patterned textures is not trivial \cite{unger2011roughness}.
\paragraph{Broader Visuo-Haptic Conditions.}
@@ -182,9 +182,6 @@ It would therefore be interesting to determine which wearable haptic augmentatio
Similar user studies could then be conducted, to reproduce as many haptic properties as possible in virtual object discrimination tasks.
These results would enable the design of more universal wearable haptic devices that provide rich haptic feedback that best meets users' needs for interaction in \AR and \VR.
% systematic exploration of the parameter space of the haptic rendering to determine the most important parameters their influence on the perception
% measure the difference in sensitivity to the haptic feedback and how much it affects the perception of the object properties
\subsection*{Responsive Visuo-Haptic Augmented Reality}
We reviewed the diversity of \AR and \VR reality displays and their respective characteristics in rendering (\secref[related_work]{ar_displays}) and the manipulation of virtual content with the hand (\chapref{visual_hand}).
@@ -205,11 +202,3 @@ Methods should also be developed to allow the user to easily adjust the haptic f
Finally, more practical use cases and applications of visuo-haptic \AR should be explored and evaluated.
For example, capturing visuo-haptic perceptions of objects and sharing them in a visioconference with different \AR or \VR setups per participant, or in a medical teleconsultation.
It could also be projecting and touching a visuo-haptic sample in a real wall for interior design, then switching to \VR to see and touch the complete final result, or manipulating a museum object with a real proxy object in visuo-haptic \AR, or even as it was in the past in its original state in \VR.
%Another example could be a medical teleconsultation, where the doctor could palpate a distant patient with haptic augmentation, but in \VR.
% design, implement and validate procedures to automatically calibrate the haptic feedback to the user's perception in accordance to what it has been designed to represent
% + let user free to easily adjust (eg can't let adjust whole spectrum of vibrotactile, reduce to two or three dimensions with sliders using MDS)
%- Visio en réalité mixte : ar avec avatars distants, vr pour se retrouver dans l'espace de l'autre ou un espace distant, et besoin de se faire toucher des objets à distance
%- Ou bien en cours, voir l'échantillon à toucher dans lenv de travail ou en contexte en passant en VR
%- Ex : médecin palpation, design d'un objet, rénovation d'un logement (AR en contexte courant, VR pour voir et toucher une fois terminé)