WIP intro

1-introduction/introduction/introduction.tex

@@ -1,11 +1,39 @@
 \chapter{Introduction}
 \mainlabel{introduction}
 
-\sectionstartoc{Wearable Haptics and Augmented Reality}
+This thesis presents research works on the perception and interaction with direct hands of everyday objects, visually and tactilely augmented with immersive and wearable augmented reality and haptic devices.
 
-\subsectionstartoc{The Senses of Vision and Touch}
+\sectionstartoc{Visual and Tactile Object Augmentations}
 
-Touch is the only sense that allows not only to perceive the environment, but also to interact with it. Explain how both vision and touch are complementary and important for combined perception and interaction with the environment.
+\subsectionstartoc{Everyday Interaction with Everyday Objects}
+
+On a daily basis, we look and touch simultaneously the everyday objects that surround us, without even thinking about it.
+%
+Many these object properties can be perceived complementary by both vision and touch, such as their shapes, sizes or textures.
+%
+But vision often precedes touch, enabling us to expect the tactile sensations we will feel when touching the object, and even to predict properties that we cannot see, such as weight or temperature.
+%
+In this way, visual and tactile sensations are often linked and complementary, or even redundant or contradictory.
+%
+This is why we sometimes want to touch an object to check one of its properties that we have seen, such as its texture, and compare and confront our visual and tactile sensations.
+%
+We then instinctively construct a unified perception of the object we are exploring and manipulating from these two visual and tactile sensory modalities, as well as with the movement of our hand and fingers on the object.
+%
+Thus, one important aspect of touch is that is allows not only to perceive the environment, but also to interact with it.
+%
+Also called the haptic sense, it comprises two sub-modalities: kinesthetic (or proprioception), which are the forces felt by muscles and tendons, and cutaneous (or tactile sensations), which are the pressures, stretches, vibrations and temperatures felt by the skin.
+%
+This rich and complex diversity of haptic actions and sensations makes it particularly difficult to recreate artificially, for example in virtual or remote operation environments.
+
+%Nous regardons et touchons simultanément les objets de la vie quotidienne qui nous entourent, sans même y penser.
+%Beaucoup de propriétés de ces objets peuvent être perçues de façon complémentaire par la vision comme par le toucher, comme la forme, la taille ou la texture.
+%Mais la vision précède souvent le toucher, et nous permet de prédire les sensations tactiles que nous allons ressentir en touchant l'objet, voire prédire des propriétés tactiles que nous ne pouvons pas voir, comme le poids ou la température.
+%Ainsi, les sensations visuelles et tactiles sont souvent liées et complémentaires, voire redondantes ou contradictoires.
+%C'est pourquoi nous voulons parfois toucher un objet pour vérifier une de ses propriété que nous avons vue, comme sa texture, et confronter nos sensations visuelles et tactiles.
+%Nous utilisons alors ces deux modalités sensorielles, ainsi que le mouvement de notre main, pour construire une perception unifiée de l'objet que nous explorons et manipulons.
+%Le sens du toucher permet ainsi à la fois de percevoir et d'interagir avec notre environnement.
+%Également appelé sens haptique, il peut être décomposé en deux sous-modalités: les sensations kinésthétique (ou proprioception), qui sont les forces senties par les muscles et les tendons, et les sensations cutanées (ou tactiles), qui sont les pressions, étirements, vibrations et températures ressenties par la peau.
+%Cette riche et complexe diversité de sensations rend particulièrement difficile de le recréer artificiellement, par exemple dans des environnements virtuels ou de téléopération.
 
 
 \subsectionstartoc{Wearable Haptics and the Augmentation of Touch}
@@ -33,15 +61,18 @@ We identify two main research challenges which we address in this thesis:
 %
 These challenges are illustrated the visuo-haptic interaction loops in \figref{xxx}.
 
-
 \subsectionstartoc{Provide Plausible and Coherent Visuo-Haptic Augmentations}
 
+
+
+Le sens visuel nous permet de
+
 \subsectionstartoc{Enable Effective Interaction with the Augmented Environment}
 
 
 \sectionstartoc{Approach and Contributions}
 
-The objective of this thesis is to understand how immersive visual and wearable haptic feedbacks compare and complement each other in the context of hand interaction with augmented and virtual objects.
+The objective of this thesis is to understand how immersive visual and wearable haptic feedbacks compare and complement each other in the context of direct hand interaction with augmented and virtual objects.
 %
 Our approach is to
 %
@@ -61,18 +92,15 @@ Our contributions in these two axes are summarized in \figref{xxx}.
 
 % TODO: Add figure with the two axes of research and the contributions
 
-
 \subsectionstartoc{Augmenting the Visuo-Haptic Texture Perception of Tangible Surfaces}
 
-
-
 \subsectionstartoc{Improving Virtual Object Manipulation with Visuo-Haptic Augmentations of the Hand}
 
 % Touch allows to perceive the environment and interact with it, thus it motivates these two axes of research.
 
 % it's a mix of augmented reality, virtual reality, vibrotactile feedback for visuo-tactile augmentation of the real world. Such multimodal rendering raise many questions on how to design, how renderings interact and complete each other, to give one perception
 
-\sectionstartoc{Overview}
+\sectionstartoc{Thesis Overview}
 
 %Present the contributions and structure of the thesis.