Evaluation of Techniques used for modelling the hallucinations of Psychosis

Exhibitor: Paul Doessel

Supervisor: Geoff Ericksson

Research Group: Complex and Intelligent Systems

Industry Sector: Media / Entertainment

The Psychosis Project is a Virtual Reality simulation of Schizophrenic Hallucinations. The existing simulation system has a speed deficiency that must be addressed.

This project looks at the common techniques used for VR simulation, and looks to find the most suitable for the Psychosis Project. The technique focused on is that of a Scene Graph, a software library that organises the objects in the 3D scene for efficient presentation to the viewer.

A total of 4 Scene Graphs and 2 Game Engines (which use a Scene Graph) were evaluated via a set of tests developed to evaluate the many facets of Scene Graph performance.

The final thesis will be both a general Specification of Scene Graph architecture, as well as a Primer for Scene Graph selection and use.

Above Left : The Psychosis Project in action
Above Right: The Psychosis Project in the Visac Lab on a 150 degree wrap-around screen

Thesis Document (PDF)

Poster Presentation (PDF)