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Landmark identification from point cloud generated from geographic imagery data

  • US 9,625,612 B2
  • Filed: 09/09/2013
  • Issued: 04/18/2017
  • Est. Priority Date: 09/09/2013
  • Status: Active Grant
First Claim
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1. A computer-implemented method for identifying prominent landmarks in a geographic area, the method comprising:

  • accessing, by the one or more computing devices, geographic imagery data captured from one or more cameras from a perspective at or near ground level;

    generating, by the one or more computing devices, a point cloud based at least in part on the geographic imagery data, the point cloud comprising a plurality of data points, each of the plurality of data points associated with a tracked feature in the geographic imagery data;

    identifying, by the one or more computing devices, a subset of data points in the point cloud, each data point in the subset located at least a threshold distance away from one or more camera perspectives associated with the geographic imagery data; and

    matching, by the one or more computing devices, one or more data points in the subset of data points with a landmark;

    determining, by the one or more computing devices, a landmark ranking for the landmark based at least in part on the one or more data points; and

    providing, by the one or more computing devices, travel directions in response to a request for travel directions, wherein the travel directions comprise data indicative of one or more landmarks identified based at least in part on the landmark ranking.

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