Desktop VRAR Systems.pdf

7. International Immersive Projection Technologies Workshop
9. Eurographics Workshop on Virtual Environments (2003)
J. Deisinger, A. Kunz (Editors)
An Affordable Optical Head Tracking System for
Desktop VR/AR Systems
Jurriaan D. Mulder, Jack Jansen, and Arjen van Rhijn
Center for Mathematics puter Science, CWI
Amsterdam, herlands
{mullie,jack,arjenvr}***@
Abstract
We present an affordable optical head tracking system for desktop-like VR/AR environments. The
generic and specific head tracking requirements for these type of environments are defined, as well as
the relaxations such environments put on head tracking systems. The presented head tracker is based
on two low-cost, commodity FireWire cameras that track a simple 3D dot pattern. It is shown that the
tracker provides high accuracy, an update rate of 30 updates per second, a putational load, and
a moderate delay of 66 ms. It petitive mercially available, moderate-cost head tracking
systems yet for substantially lower costs.
Keywords: Optical Head Tracking, Desktop Virtual and Augmented Reality.
Categories and Subject Descriptors (according to S): [Image Processing puter
Vision]: Scene Analysis—Stereo, Tracking; [Computer Graphics]: Three-Dimensional Graphics
and Realism—Virtual reality; [Information Interfaces and Representation]: User Interfaces—
Evaluation/methodolo