Virtual reality systems and applications

In this tutorial we will present the infrastructure required, both software and hardware, to create the Virtual Reality (VR) illusion. The history and the application areas of VR will be presented. From the software required to the image generator to the different display systems -- both head based and projection based -- all components of a VR system as well as practical deployment issues will be investigated. The stereo depth principle will be explained along with the different stereo methodologies available today. Aspects of a VR experience like immersion and collaboration will be explored. Other topics include the physical interface and interaction devices and the methods of manipulating a Virtual Environment by tracking users and devices.An attempt will be made to differentiate VR from pre-rendered Computer Graphics by presenting the issues concerning Real Time graphics. Finally possible future developments in the areas of Virtual Reality technology and Virtual Environments will be presented.