Robust linear auto-calibration of a moving camera from image sequences

  • Authors:

  • Thorsten Thormählen;Hellward Broszio;Patrick Mikulastik

  • Affiliations:

  • Information Technology Laboratory, University of Hannover, Hannover, Germany;Information Technology Laboratory, University of Hannover, Hannover, Germany;Information Technology Laboratory, University of Hannover, Hannover, Germany

  • Venue:
  • ACCV'06 Proceedings of the 7th Asian conference on Computer Vision - Volume Part II
  • Year:
  • 2006

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Abstract

A robust linear method for auto-calibration of a moving camera from image sequences is presented. Known techniques for auto-calibration have problems with critical motion sequences or biased estimates. The proposed approach uses known linear equations that are weighted by variable factors. Experiments show, that this modification reduces problems with critical motion sequences and that the estimates are not biased. Therefore, the proposed approach is more robust and achieves a higher estimation accuracy.