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Feature reduction based on local densities for bundle adjustment of images

  • US 8,965,107 B1
  • Filed: 05/18/2012
  • Issued: 02/24/2015
  • Est. Priority Date: 05/18/2012
  • Status: Active Grant
First Claim
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1. A method of determining camera parameters and three dimensional locations of features from a plurality of images of a geographic area, comprising:

  • detecting features in the plurality of images, wherein each of the images cover at least a portion of the geographic area;

    comparing the detected features between respective ones of the images to determine a plurality of matched features;

    selecting a subset of the plurality of matched features, respective matched features selected depending on a quantity of other matched features in proximity to the respective matched features; and

    determining the camera parameters and the three dimensional positions of one or more of the matched features using the selected subset.

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