"Line of Sight Method for Tracker Calibration in Projection-Based VR Systems"

Created on May 11, 1998

1998   ·   paper   ·   papers

Line of Sight Method for Tracker Calibration in Projection-Based VR Systems

Czernuszenko, M., Sandin, D., DeFanti, T.

image User and ImmersaDesk with Physical Targets Credit: M. Czernuszenko, EVL

This paper describes a method for correcting static errors in the position component of a 6-degree-of-freedom tracker in a projection-based VR system. This method allows users to observe where errors in the environment are significant and correct them interactively. Later touch-up correction is possible as well. This technique is based on superimposing targets in physical space with their virtual images. The only hardware addition to the VR system required is a few precisely placed targets.