Robust Visual Tracking for Non-Instrumented Augmented Reality

  • Authors:
  • Georg Klein;Tom Drummond

  • Affiliations:
  • -;-

  • Venue:
  • ISMAR '03 Proceedings of the 2nd IEEE/ACM International Symposium on Mixed and Augmented Reality
  • Year:
  • 2003

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Abstract

This paper presents a robust and flexible framework foraugmented reality which does not require instrumenting eitherthe environment or the workpiece. A model-based visualtracking system is combined with with rate gyroscopesto produce a system which can track the rapid camera rotationsgenerated by a head-mounted camera, even if imagesare substantially degraded by motion blur. This trackingyields estimates of head position at video field rate (50Hz)which are used to align computer-generated graphics onan optical see-through display. Nonlinear optimisation isused for the calibration of display parameters which includea model of optical distortion. Rendered visuals arepre-distorted to correct the optical distortion of the display.