Corrections discussion VR

diff --git a/tex/3-input.tex b/tex/3-input.tex
index 6ebd1b9edff621ed6361a87192ba00350c2535b5..7569066063b62fc3814f5813bb2d7b050719cbf0 100644 (file)
--- a/tex/3-input.tex
+++ b/tex/3-input.tex
@@ -888,10 +888,11 @@ In the physical world it is impossible to select an object remotely and show a f
 The choice of using these techniques in virtual reality systems is indeed a matter of trade-offs.
 
 Most of the benefits of Raycursor rely on proximity selection.
-The actual benefits of proximity selection was demonstrated with the bubble cursor in both 22 \cite{grossman05} and 3D with a virtual hand \cite{vanacken07}.
-What proximity selection means is that there is always a selectable object, and the area of influence of the targets is a Voronoi diagram.
-The first issue we overlooked in this work is the exact way to interpret the area of influence of 3D objects, as opposed to points.
-We conducted evaluations with spheres and, as a 3D extension to the bubble cursor, the distance to the shpere is the diwtance to the center minus the sphere radius.
+The actual benefits of proximity selection were demonstrated with the bubble cursor in both 2D \cite{grossman05} and 3D with a virtual hand \cite{vanacken07}.
+We extended this knowledge to remote selection in 3D.
+The consequence of proximity selection is that there is always a selectable object, and the area of influence of the targets is a Voronoi diagram.
+The issue we overlooked in this work is the exact way to interpret the area of influence of 3D objects, as opposed to points.
+We conducted evaluations with spheres and, as a 3D extension to the bubble cursor, the distance to the sphere is the distance to the center minus the sphere radius.
 With arbitrary objects, it is unclear which point should be considered.
 This choice has a major effect on the area of influence.
 We identified issues with convex and oblong objects, as well as dense clusters of small objects surrounded by large objects.
@@ -904,8 +905,8 @@ Not everybody is an actor.
 %What we wanted to evaluate in this work is the ability of people to select face expressions during a conversation without 
 Now, isomorphic techniques also have benefits.
 They do not require a conscious control and they do not disrupt or interrupt a primary task, like talking.
-Moreover, new VR headset already include cameras for this purpose\footnote{\href{https://www.vive.com/eu/accessory/facial-tracker/}{https://www.vive.com/eu/accessory/facial-tracker/}}, which will make it easier to implement such interactions techniques.
-Therefore it would be interesting to investigare the combination of isomorphic and non-isometric techniques to get the best of both, to study the control/automation trade-off.
+Moreover, new VR headsets include cameras for face tracking\footnote{\href{https://www.vive.com/eu/accessory/facial-tracker/}{https://www.vive.com/eu/accessory/facial-tracker/}}, which will make it easier to implement such interactions techniques.
+Therefore it would be interesting to investigare the combination of isomorphic and non-isometric techniques to get the best of both, and study the control/automation trade-off in the context of face expression selection.
 
 \section{Conclusion}