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Add registration error to future works

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Erwan Normand
2025-04-09 16:27:56 +02:00
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5-conclusion/conclusion.tex
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@@ -62,10 +62,15 @@ In addition, combination with pseudo-haptic rendering techniques \cite{ujitoko20
In our system, we registered the real and virtual environments (\secref[related_work]{ar_definition}) using fiducial markers and a webcam external to the \AR headset. In our system, we registered the real and virtual environments (\secref[related_work]{ar_definition}) using fiducial markers and a webcam external to the \AR headset.
This only allowed us to estimate poses of the index finger and the surface to be augmented with the haptic texture, but it was reliable and accurate enough for our needs. This only allowed us to estimate poses of the index finger and the surface to be augmented with the haptic texture, but it was reliable and accurate enough for our needs.
In fact, preliminary tests we conducted showed that the built-in tracking capabilities of the Microsoft HoloLens~2 were not able to track hands wearing a vibrotactile voice-coil device. 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. A more robust hand pose estimation system would support wearing haptic devices on the hand as well as holding real objects.
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}. 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}.
Prediction of hand movements should also be considered \cite{klein2020predicting,gamage2021predictable}.
This would allow a complete portable and wearable visuo-haptic system to be used in practical applications. This would allow a complete portable and wearable visuo-haptic system to be used in practical applications.
\subsection*{Perception of Haptic Texture Augmentation in Augmented and Virtual Reality} \subsection*{Perception of Haptic Texture Augmentation in Augmented and Virtual Reality}