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System and method for identifying trees

  • US 9,508,006 B2
  • Filed: 11/03/2014
  • Issued: 11/29/2016
  • Est. Priority Date: 11/03/2014
  • Status: Expired due to Fees
First Claim
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1. A method of detecting trees in an image, the method comprising:

  • providing an input image of an area with trees;

    receiving at least one dimension related to the trees;

    applying a two dimensional (2D) high pass filter to the input image to produce a high pass image, wherein the 2D high pass filter is configured to mark objects based on the at least one dimension;

    producing a processed image by associating a set of pixels in the high pass image with a respective set of grayscale values, the grayscale values selected based on respective magnitudes of color variations around the set of pixels;

    applying a density operator to the processed image to identify locations with high frequency changes and marking the centers of the locations;

    defining shapes around the centers of the locations;

    identifying canopies by grouping two or more shapes; and

    identifying trees based on at least one of;

    identifying trees in the high pass image by identifying clusters of marked objects and identified canopies.

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