Systems and methods for filtering potentially unreliable visual data for visual simultaneous localization and mapping

  • US 7,272,467 B2
  • Filed: 12/17/2003
  • Issued: 09/18/2007
  • Est. Priority Date: 12/17/2002
  • Status: Active Grant
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First Claim
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1. A method of identifying a potentially unreliable visual measurement for navigation, the method comprising:

  • determining that one or more features in an image match with one or more features from at least one previously identified landmark, where the determination of the matching one or more features is performed by a visually-based automated process;

    analyzing one or more quality metrics associated with the match between the one or more features of the image and the at least one previously identified landmark; and

    automatically determining that the visual measurement is potentially unreliable at least partly based on the analysis of the one or more quality metrics.

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