Robust Visual Tracking for Non-Instrumented Augmented Reality

This paper presents a robust and flexible framework for augmented reality which does not require instrumenting either the environment or the workpiece. A model-based visual tracking system is combined with with rate gyroscopes to produce a system which can track the rapid camera rotations generated by a head-mounted camera, even if images are substantially degraded by motion blur. This tracking yields estimates of head position at video field rate (50Hz) which are used to align computer-generated graphics on an optical see-through display. Nonlinear optimisation is used for the calibration of display parameters which include a model of optical distortion. Rendered visuals are pre-distorted to correct the optical distortion of the display.

• Type: Conference
• Year: 2003
• Where: ISMAR
• Authors: Georg S. W. Klein, Tom Drummond
• Keywords: Augmented Reality, ISMAR 2003, Model-based Visual Tracking, Optical Distortion, Optical See-through Display