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Method of providing a descriptor for at least one feature of an image and method of matching features

  • US 10,650,546 B2
  • Filed: 07/26/2018
  • Issued: 05/12/2020
  • Est. Priority Date: 10/19/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • extracting a feature from an image captured by a capturing device;

    projecting a gravitational force onto a plane of the image;

    determining a direction, with respect to the feature, of the gravitational force projected onto the plane of the image at a location of the feature in the image; and

    assigning a descriptor to the feature based on the direction, with respect to the feature, of the gravitational force projected onto the plane of the image at the location of the feature.

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