A Multi-Camera 6-DOF Pose Tracker

  • Authors:
  • Sarah Tariq;Frank Dellaert

  • Affiliations:
  • Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA

  • Venue:
  • ISMAR '04 Proceedings of the 3rd IEEE/ACM International Symposium on Mixed and Augmented Reality
  • Year:
  • 2004

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Abstract

Most of the work in head-pose tracking has concentrated on single-camera systems with a relatively small field of view which have limited accuracy because features are only observed in a single viewing direction. We present a multi-camera pose tracker that handles an arbitrary configuration of cameras rigidly fixed to the observer's head. By using multiple cameras, we increase the robustness and accuracy by which a 6-DOF pose is tracked. However, in a multi-camera rig setting, earlier methods for determining the unknown pose from three world-to-camera correspondences are no longer applicable. We present a RANSAC [Random sample consensus: a paradigm for model fitting with application to image analysis and automated cartography] based method that handles multi-camera rigs by using a fast non-linear minimization step in each RANSAC round.