VIRTUAL REALITY – STREAMING AND CONCEPTS OF MOVEMENT TRACKING

Sammanfattning: This thesis was created to support research and development of a virtual reality application allowing users to explore a virtual world. The main focus would be on creating a solution for streaming the screen of a PC to a mobile phone, for the purpose of taking advantage of the computer’s rendering capability. This would result in graphics with higher quality than if the rendering was done by the phone. The resulting application is a prototype, able to stream images from one PC to another, with a delay of about 200ms. The prototype uses TCP as its transmission protocol and also uses the Graphics Device Interface (GDI) to capture the host computer’s screen.This thesis also provides some information and reflections on different concepts of tracking the movement of the user, e.g. body worn sensors used to capture relative positions and translating into a position and orientation of the user. The possibility of using magnetic fields, tracking with a camera, inertial sensors, and finally triangulation and trilateration together with Bluetooth, are all concepts investigated in this thesis. The purpose of investigating these methods is to help with the development of a motion tracking system where the user is not restricted by wires or cameras, although one camera solution was also reviewed.