Image analysis – Applications – Biomedical applications
Patent
1996-02-22
1998-11-17
Couso, Jose L.
Image analysis
Applications
Biomedical applications
G06K 900
Patent
active
058388150
ABSTRACT:
A method and apparatus for detecting abnormal regions in living tissue depicted in a digital radiograph includes identifying suspected abnormal regions depicted in the radiograph and then, for each identified suspected abnormal region, extracting multiple topographic layers of the region from the digital radiograph; determining features of the region in each of the layers; and applying inter-layer multivariate non-linear criteria to the features to determine whether the suspected abnormal region is to be classified as an abnormal region. The distribution of digital values in the digitized radiograph is modified and a probabalistic determination is made as to whether suspected abnormal regions are actually abnormal from multiple analyses. An image is processed using at least two partially correlated detection schemes to produce at least two corresponding result sets of potentially abnormal regions; and the results of the detection schemes are combined using logical "AND" or logical "OR" combining rules to detect abnormal regions in the radiograph.
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Chang Yuan-Hsiang
Gur David
Zheng Bin
Couso Jose L.
University of Pittsburgh
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