Premium
CCD‐Camera Based Optical Beacon Tracking for Virtual and Augmented Reality
Author(s) -
Madritsch Franz,
Gervautz Michael
Publication year - 1996
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/1467-8659.1530207
Subject(s) - beacon , tracking (education) , computer science , computer vision , augmented reality , artificial intelligence , tracking system , pixel , computer graphics (images) , real time computing , kalman filter , psychology , pedagogy
We introduce a scheme for optical beacon tracking using two CCD‐cameras and LED beacons. Due to the sub‐pixel accuracy of the beacon detection algorithm a very high precision can be achieved so that the tracking method is suitable for augmented reality applications. We describe the assembly of the equipment needed for the whole tracking system, the behavior of LED‐beacons, and how three beacons can be combined to form a 6‐DOF tracker. A report on our accuracy evaluation and its results are given. Furthermore we describe two application prototypes in which the tracker was incorporated and tested.