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Systems and methods for automatically generating descriptions of retinal images

  • US 9,002,085 B1
  • Filed: 04/30/2014
  • Issued: 04/07/2015
  • Est. Priority Date: 10/22/2013
  • Status: Active Grant
First Claim
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1. A computing system for automated generation of descriptors of local regions within a retinal image, the computing system comprising:

  • one or more hardware computer processors; and

    one or more storage devices configured to store software instructions configured for execution by the one or more hardware computer processors in order to cause the computing system to;

    access the retinal image;

    generate a first filtered image using the retinal image, and a morphological filter, computed over a first geometric shape, wherein the first geometric shape is circular or a regular polygon;

    generate a second filtered image using the retinal image and a morphological filter, computed over a second geometric shape, wherein the second geometric shape has either an elongated or elliptical structure;

    generate difference image pixel values by computing differences between a plurality of first filtered image pixel values and plurality of second filtered image pixel values; and

    assign the difference image pixel values as descriptor values, each descriptor value corresponding to a given pixel location of the said retinal image.

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