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Image-based georeferencing

  • US 8,942,483 B2
  • Filed: 09/14/2009
  • Issued: 01/27/2015
  • Est. Priority Date: 09/14/2009
  • Status: Active Grant
First Claim
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1. A method of obtaining geolocation information, said method comprising:

  • capturing a first image with a camera to achieve a captured image, said captured image comprising a field of view including an object with an identifiable feature;

    providing said captured image to an image-based georeferencing system, said image-based georeferencing system comprising a feature locator configured for accessing geographic location information;

    determining, by said image-based georeferencing system, a common reference feature that is common to both captured image and an image identified from an image database, wherein said common reference feature comprises said identifiable feature;

    retrieving, by said feature locator of said image-based georeferencing system, a georeferenced position fix for said common reference feature, and wherein if said common reference feature is not georeferenced in said image identified from said image database, accessing, by said image-based georeferencing system, a geospatial and geographic information system (GIS) to identify said common reference feature and to obtain said geographic location information related to said common reference feature;

    receiving, from said feature locator, an accuracy level determination for said georeferenced position fix, wherein said accuracy level determination comprises a description of a level of accuracy for a source rendering said georeferenced position fix, wherein said accuracy level determination further comprises an accuracy validation comprising a validation of a presence of Z-coordinate information in said georeferenced position fix;

    locating, by said feature locator, additional features in said field of view of said captured image based on said georeferenced position fix for said common reference feature and said accuracy level determination; and

    receiving, from said image-based georeferencing system, an augmented version of said first image comprising augmented location information regarding said field of view.

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