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Erwan Normand
2024-11-12 20:09:11 +01:00
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3-perception/xr-perception/6-conclusion.tex
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@@ -8,7 +8,8 @@ With an immersive \AR headset, that could be switched to a \VR only view, we con
We then evaluated the perceived roughness augmentation in these three visual conditions with a psychophysical user study involving 20 participants and extensive questionnaires.
Our results showed that the visual virtuality of the hand (real or virtual) and the environment (\AR or \VR) had a significant effect on the perception of haptic textures and the exploration behaviour of the participants.
The textures were on average perceived as \enquote{rougher} and with a higher sensitivity when touched with the real hand alone than with a virtual hand either in \AR, with \VR in between.
The textures were on average perceived as \enquote{rougher} when touched with the real hand alone than with a virtual hand either in \AR, with \VR in between.
Similarly, the sensitivity to differences in roughness was better with the real hand, less good with \AR, and in between with \VR.
Exploration behaviour was also slower in \VR than with real hand alone, although subjective evaluation of the texture was not affected.
We hypothesised that this difference in perception was due to the \emph{perceived latency} between the finger movements and the different visual, haptic and proprioceptive feedbacks, which were the same in all visual renderings, but were more noticeable in \AR and \VR than without visual augmentation.
@@ -23,7 +24,7 @@ When designing for wearable haptics or integrating it into \AR/\VR, it seems imp
In the next chapter we present a second user study where we investigate the perception of simultaneous and co-localised visual and haptic texture augmentation.
We will use the same system presented in \chapref{vhar_system} and a visual rendering condition similar to the \level{Real} condition of this study, in \AR without the virtual hand overlay.
\noindentskip This work was presented and published at the VRST 2024 conference:
\noindentskip The work described in \chapref{vhar_system} and \ref{xr_perception} was presented at the VRST 2024 conference:
Erwan Normand, Claudio Pacchierotti, Eric Marchand, and Maud Marchal.
\enquote{How Different Is the Perception of Vibrotactile Texture Roughness in Augmented versus Virtual Reality?}.