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Method of analyzing a medical image

  • US 8,731,261 B2
  • Filed: 02/23/2011
  • Issued: 05/20/2014
  • Est. Priority Date: 02/23/2010
  • Status: Expired due to Fees
First Claim
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1. A method of analyzing a medical image, the medical image comprising one or more than one region of interest, the method comprising:

  • a) providing the medical image comprising a set of actual image values;

    b) rescaling the actual image values to produce corresponding rescaled image values and to produce a rescaled image from the rescaled image values;

    c) deriving a histogram of the rescaled image values;

    d) using the histogram to derive an adaptive segmentation threshold that can be used to split the rescaled image into two sub-images, a first sub-image with intensities at or below the adaptive segmentation threshold and a second sub-image with intensities above the adaptive segmentation threshold, or a first sub-image with intensities below the adaptive segmentation threshold and a second sub-image with intensities at or above the adaptive segmentation threshold, or a first sub-image with intensities below the adaptive segmentation threshold and a second sub-image with intensities above the adaptive segmentation threshold;

    e) using the adaptive segmentation threshold to recursively split the rescaled image to generate a Hierarchical Region Splitting Tree of sub(sub) images based on consistency of the rescaled image values of the rescaled image;

    f) terminating the recursive splitting of the sub(sub) images using one or more than one predetermined criteria thereby completing the Hierarchical Region Splitting Tree; and

    g) identifying one sub(sub) image in the terminated Hierarchical Region Splitting Tree which comprises the region of interest.

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