erwan/phd-thesis
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Typo

Browse Source
This commit is contained in:
Erwan Normand
2024-09-29 23:26:09 +02:00
parent 3a8f68c094
commit 6ae75a37e2
4 changed files with 11 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
2-perception/vhar-system/1-introduction.tex
View File

@@ -1,7 +1,4 @@
% Even before manipulating a visual representation to induce a haptic sensation, shifts and latencies between user input and co-localised visuo-haptic feedback can be experienced differently in \AR and \VR, which we aim to investigate in this work.
% Database of virtual visual and haptic (roughness) textures have been developed as captures and models of real everyday surfaces \cite{culbertson2014penn,balasubramanian2024sens3}
When we look at the surface of an everyday object, we then touch it to confirm or contrast our initial visual impression and to estimate the properties of the object \cite{ernst2002humans}.
\noindent When we look at the surface of an everyday object, we then touch it to confirm or contrast our initial visual impression and to estimate the properties of the object \cite{ernst2002humans}.
%
One of the main characteristics of a textured surface is its roughness, \ie the micro-geometry of the material \cite{klatzky2003feeling}, which is perceived equally well and similarly by both sight and touch \cite{bergmanntiest2007haptic,baumgartner2013visual,vardar2019fingertip}.
%
@@ -46,12 +43,6 @@ Previous works have shown, for example, that the stiffness of a virtual piston r
%
%But how different is the perception of the haptic augmentation in \AR compared to \VR, with a virtual hand instead of the real hand?
The goal of this paper is to study the role of the visual rendering of the hand (real or virtual) and its environment (AR or \VR) on the perception of a tangible surface whose texture is augmented with a wearable vibrotactile device worn on the finger.
%
We focus on the perception of roughness, one of the main tactile sensations of materials \cite{baumgartner2013visual,hollins1993perceptual,okamoto2013psychophysical} and one of the most studied haptic augmentations \cite{asano2015vibrotactile,culbertson2014modeling,friesen2024perceived,strohmeier2017generating,ujitoko2019modulating}.
%
By understanding how these visual factors influence the perception of haptically augmented tangible objects, the many wearable haptic systems that already exist but have not yet been fully explored with \AR can be better applied and new visuo-haptic renderings adapted to \AR can be designed.
\noindentskip The contributions of this chapter are:
\begin{itemize}
\item The rendering of virtual vibrotactile roughness textures in real time using webcam to track the finger touching.