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Title: Method and apparatus for detecting a desired behavior in digital image data

A method for detecting stellate lesions in digitized mammographic image data includes the steps of prestoring a plurality of reference images, calculating a plurality of features for each of the pixels of the reference images, and creating a binary decision tree from features of randomly sampled pixels from each of the reference images. Once the binary decision tree has been created, a plurality of features, preferably including an ALOE feature (analysis of local oriented edges), are calculated for each of the pixels of the digitized mammographic data. Each of these plurality of features of each pixel are input into the binary decision tree and a probability is determined, for each of the pixels, corresponding to the likelihood of the presence of a stellate lesion, to create a probability image. Finally, the probability image is spacially filtered to enforce local consensus among neighboring pixels and the spacially filtered image is output.
  1. (11755 Shadow Dr., Dublin, CA 94568)
Issue Date:
OSTI Identifier:
Kegelmeyer, Jr., W. Philip (11755 Shadow Dr., Dublin, CA 94568) SNL
Patent Number(s):
US 5633948
Contract Number:
Research Org:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA
Country of Publication:
United States
method; apparatus; detecting; desired; behavior; digital; image; data; stellate; lesions; digitized; mammographic; steps; prestoring; plurality; reference; images; calculating; features; pixels; creating; binary; decision; tree; randomly; sampled; created; preferably; including; aloe; feature; analysis; local; oriented; edges; calculated; pixel; input; probability; determined; corresponding; likelihood; presence; lesion; create; finally; spacially; filtered; enforce; consensus; neighboring; output; reference image; reference images; image data; digital image; digitized mammographic; preferably including; stellate lesion; stellate lesions; desired behavior; detecting stellate; mammographic image; /382/