From c681cbf43d4929d427b15583ac8a5cb4ec2230d6 Mon Sep 17 00:00:00 2001 From: Erwan Normand Date: Sat, 12 Apr 2025 13:42:34 +0200 Subject: [PATCH] Use \cm instead of \mm --- 3-perception/vhar-system/2-method.tex | 2 +- 3-perception/xr-perception/3-experiment.tex | 2 +- 4-manipulation/visual-hand/2-method.tex | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/3-perception/vhar-system/2-method.tex b/3-perception/vhar-system/2-method.tex index 2ebcd18..e8c4aa9 100644 --- a/3-perception/vhar-system/2-method.tex +++ b/3-perception/vhar-system/2-method.tex @@ -114,4 +114,4 @@ The total visual latency can be considered slightly high, yet it is typical for The two filters also introduce a constant lag between the finger movement and the estimated position and velocity, measured at \qty{160 \pm 30}{\ms}. With respect to the real hand position, it causes a distance error in the displayed virtual hand position, and thus a delay in the triggering of the vibrotactile signal. -This is proportional to the speed of the finger, \eg distance error is \qty{12 \pm 2.3}{\mm} when the finger moves at \qty{75}{\mm\per\second}. +This is proportional to the speed of the finger, \eg distance error is \qty{1.2 \pm .2}{\cm} when the finger moves at \qty{7.5}{\cm\per\second}. diff --git a/3-perception/xr-perception/3-experiment.tex b/3-perception/xr-perception/3-experiment.tex index aeb5cc7..73ef59b 100644 --- a/3-perception/xr-perception/3-experiment.tex +++ b/3-perception/xr-perception/3-experiment.tex @@ -27,7 +27,7 @@ In order not to influence the perception, as vision is an important source of in \label{apparatus} An experimental environment was created to ensure a similar visual rendering in \AR and \VR (\figref{renderings}). -It consisted of a \qtyproduct{300 x 210 x 400}{\mm} medium-density fibreboard box with a paper sheet glued inside and a \qtyproduct{50 x 15}{\mm} rectangle printed on the sheet to delimit the area where the tactile textures were rendered. +It consisted of a \qtyproduct{30 x 21 x 40}{\cm} medium-density fibreboard box with a paper sheet glued inside and a \qtyproduct{5 x 1.5}{\cm} rectangle printed on the sheet to delimit the area where the tactile textures were rendered. A single light source of \qty{800}{\lumen} placed \qty{70}{\cm} above the table fully illuminated the inside of the box. Participants rated the roughness of the paper (without any texture augmentation) before the experiment on a 7-point Likert scale (1~=~Extremely smooth, 7~=~Extremely rough) as quite smooth (\mean{2.5}, \sd{1.3}). diff --git a/4-manipulation/visual-hand/2-method.tex b/4-manipulation/visual-hand/2-method.tex index 9bc7a50..f643f72 100644 --- a/4-manipulation/visual-hand/2-method.tex +++ b/4-manipulation/visual-hand/2-method.tex @@ -56,7 +56,7 @@ Following the guidelines of \textcite{bergstrom2021how} for designing object man \label{push-task} The first manipulation task consists in pushing a virtual object along a real flat surface towards a target placed on the same plane (\figref{method/task-push}). -The virtual object to manipulate is a small \qty{50}{\mm} blue and opaque cube, while the target is a (slightly) bigger \qty{70}{\mm} blue and semi-transparent volume. +The virtual object to manipulate is a small \qty{5}{\cm} blue and opaque cube, while the target is a (slightly) bigger \qty{7}{\cm} blue and semi-transparent volume. At every repetition of the task, the cube to manipulate always spawns at the same place, on top of a real table in front of the user. On the other hand, the target volume can spawn in eight different locations on the same table, located on a \qty{20}{\cm} radius circle centred on the cube, at \qty{45}{\degree} from each other (again \figref{method/task-push}). Users are asked to push the cube towards the target volume using their fingertips in any way they prefer.