From HIT Lab NZ
Development for the ARToolKit library (originally design by Hirokazu Kato and Mark Billinghurst). It's a low-level AR Library for the tracking and the visual integration of real and virtual content. Widely used internationally by the community (GPL Licence), the software is now available commercially from ARToolWorks.
Please visit the ARToolKit Website at
http://www.hitl.washington.edu/artoolkit/
