Marker Tracking and HMD Calibration for a Video-Based Augmented Reality Conferencing System
IWAR '99 Proceedings of the 2nd IEEE and ACM International Workshop on Augmented Reality
Camera Calibration with One-Dimensional Objects
IEEE Transactions on Pattern Analysis and Machine Intelligence
A motion capture system using passive markers
VRCAI '04 Proceedings of the 2004 ACM SIGGRAPH international conference on Virtual Reality continuum and its applications in industry
A Hitchhikers Guide to Virtual Reality
A Hitchhikers Guide to Virtual Reality
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The Remote control unit for the Nintendo Wii computer games console features an infrared camera capable of detecting up to 4 infrared lights. As such, it is possible to calibrate this device using normal camera calibration techniques so that it can be used for tracking or human interfacing in a virtual environment. Camera calibration is an active area of research and there is a wealth of software available to perform the calibration e.g. ArToolKit and Matlab. Camera calibration typically requires at least five images which contain multiple grid points from which a matrix of camera parameters can be estimated. This paper proposes a method of calibrating the Wii Remote's IR camera by building up 24 calibration points from the 4 viewed infrared LEDs for a single viewpoint of the IR camera. This is done by moving the 4 LEDs in a known sequence using highly accurate PA-10 robotic arms. The camera calibration matrix parameters obtained from this method are presented.