The Mixed-reality lab serves a threefold research agenda:
- Understand human behavior in a mixed-reality context
- Build mixed-reality applications based on neurobiological understanding and methodologies see iqr and Brainx3
- Test neurobiological models by deploying them in control of mixed-reality systems see SPECS project page and Rehabilitation Gaming System
XIM: The eXperience Induction Machine
The key infrastructure of the MR lab is the eXperience Induction Machine (XIM). XIM is an immersive room equipped with a number of sensors and effectors that has been constructed to conduct experiment in mixed-reality. XIM is an abstraction and further development of its predecessor, the installation “Ada – the intelligent space” that was built for the Swiss national exhibition Expo02.
XIM covers a surface area of 5.5m x 5.5m, with a height of 4m. The majority of the instruments are mounted in a rig constructed from truss elements. The space is equipped with the following devices:
● 1 infrared cameras at the top of the rig provide a ”bird’s eye view”
● 3 directional microphones in the center provide the system with auditory input to localize visitors and to recognize specific sound events.
● 16 speakers with the corresponding sound equipment.
● The space is surrounded by 4 projection screens (2.25m x 5m), 8 video projectors are used for displaying content.
● The floor of the space consists of 72 custom built tiles. Each floor tile is on the one hand equipped with pressure sensors, and on the other hand incorporates individually controllable RGB neon tubes allowing to display patterns and light effects on the floor.
Playing pong in XIM: social interaction with physical and virtual team mates
M. P. Inderbitzin, Wierenga, S., Väljamäe, A., Bernardet, U., and Verschure, P. F. M. J., “Social Cooperation and Competition in the Mixed Reality Space eXperience Induction Machine”, Virtual Reality, vol. 13, no. 3, pp. 153-158, 2009
Physical exploration of virtual environment in XIM