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Erwan Normand
2025-04-12 13:45:42 +02:00
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5-conclusion/conclusion.tex
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@@ -65,9 +65,9 @@ This only allowed us to estimate poses of the index finger and the surface to be
In fact, preliminary tests we conducted showed that the built-in tracking capabilities of the HoloLens~2 were not able to track hands wearing a vibrotactile voice-coil device.
A more robust hand pose estimation system would support wearing haptic devices on the hand as well as holding real objects.
\comans{JG}{I [...] also want to highlight the opportunity to study the effect of visual registration error as noted already in chapter 4.}{Sentences along these lines has been added.}
The spatial registration error \cite{grubert2018survey} and the temporal latency \cite{diluca2019perceptual} between the real and the virtual content should also be reduced to be imperceptible.
The effect of these spatial and temporal errors on the perception and manipulation of the virtual content should be systematically investigated.
\comans{JG}{I [...] also want to highlight the opportunity to study the effect of visual registration error as noted already in chapter 4.}{Sentences along these lines has been added.}
Prediction of hand movements should also be considered to overcome such issues \cite{klein2020predicting,gamage2021predictable}.
A complementary solution would be to embed tracking sensors in the wearable haptic devices, such as an inertial measurement unit (IMU) or cameras \cite{preechayasomboon2021haplets}.
@@ -102,8 +102,8 @@ As in the previous chapter, our aim was not to accurately reproduce real texture
However, the results also have some limitations, as they addressed a small set of visuo-haptic textures that augmented the perception of smooth and white real surfaces.
Visuo-haptic texture augmentation might be difficult on surfaces that already have strong visual or haptic patterns \cite{asano2012vibrotactile}, or on objects with complex shapes.
The role of visuo-haptic texture augmentation should also be evaluated in more complex tasks, such as object recognition and assembly, or in more concrete use cases, such as displaying and touching a museum object or a 3D printed object before it is manufactured.
Finally, the visual textures used were simple color images not intended for use in an \ThreeD \VE, and enhancing their visual quality could improve the perception of visuo-haptic texture augmentation.
\comans{JG}{As future work, the effect of visual quality of the rendered textures on texture perception could also be of interest.}{A sentence along these lines has been added.}
Finally, the visual textures used were simple color images not intended for use in an \ThreeD \VE, and enhancing their visual quality could improve the perception of visuo-haptic texture augmentation.
\paragraph{Specificities of Direct Touch.}