Conformal segmentation of organs in medical images
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United States of America Patent
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Jan 18, 2011
Grant Date -
Jun 12, 2008
app pub date -
Sep 20, 2005
filing date -
Sep 22, 2004
priority date (Note) -
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Abstract
A method and an apparatus for segmenting contours of objects in an image is disclosed. It particularly applies to the segmentation of body organs or parts depicted in medical images. An input image containing at least one object comprises pixel data sets of at least two dimensions. An edge-detected image is obtained from the input image. Markers are selected in the edge-detected image, and assigned respective fixed electrical potential values. An electrical potential map is generated as a solution to an electrostatic problem in a resistive medium having a resistivity dependent on the edge-detected image, with the markers defining electrodes at the respective fixed potential values. Object contours are estimated, for example by thresholding, from the generated potential map.
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