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Method and system for location determination and navigation using structural visual information

  • US 9,395,188 B2
  • Filed: 12/01/2011
  • Issued: 07/19/2016
  • Est. Priority Date: 12/01/2011
  • Status: Expired due to Fees
First Claim
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1. A method for wireless device positioning, the method comprising:

  • in a wireless communication device;

    capturing one or more images of one or more structures a vicinity of said wireless communication device;

    extracting structural element data from the captured images;

    determining best matches between extracted structural element data and structural data stored in memory;

    determining estimated positions Pi of the best matches ordered by a quality Qi of the matches; and

    determining a position Px of said wireless communication device from a location that has a highest number of estimated positions Pi of said wireless communication device clustered about it within a threshold distance, and if no position Px has estimated positions Pi of said wireless communication device clustered within said threshold distance, capturing one or more additional images at a different orientation.

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