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Perception, Cognition, Interaction

23/07/2009

Interactive visualisation platform

The WILD project concerns research on human-computer interaction in an environment that is unique in the world. The platform is a tool that creates a new research context. Its novelty resides in its combination of several cutting-edge technologies:

Video wall

© INRIA-Université Paris-Sud 11-CNRS / Équipe-projet IN-SITU

This large display surface consists of thirty-two 30-inch high-resolution screens. Together, they constitute a display platform measuring 5.50m by 1.70m, with a resolution of 131 million pixels. The screens' supporting structure allows different geometrical configurations of the display surface: flat wall, two panels, three panels, or curved wall.
A frontal computer coordinates 16 other computers, each controlling what is displayed on two screens. The frontal computer also centralises all of the information from the other elements of the platform.
 

Motion capture system

© INRIA-Université Paris-Sud 11-CNRS / Équipe-projet IN-SITU

The system is composed of infrared cameras, distributed around the room in which the video wall is located. A piece of software analyses the position of markers seen by the various cameras in order to deduce their location in 3D to within half a millimetre. It is then possible to know the position and orientation of the people or objects fitted with these markers. This information is used by researchers, for example, to automatically associate a work space on the video wall with each user, to adapt the zoom level according to the position of the user in relation to the wall, or to interpret instructions issued by users in the form of bodily movements (designating an object by pointing to it, commands).
 

Interactive table

© INRIA-Université Paris-Sud 11-CNRS / Équipe-projet IN-SITU

A sort of giant iPhone, this touch table allows a large number of graphical objects to be displayed, which the user can manipulate as he/she wishes. They can change the size or orientation directly with their fingers, specify the movement of an object by sketching out its trajectory, and control navigation through space using two-handed movements. It allows several users to work at the same time. Each finger placed on the screen is like an independent mouse cursor.

Keywords: Saclay - Île-de-France Interactive visualization In-situ Wall of images

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