Method of extracting contours using multifractal analysis
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United States of America Patent
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Sep 15, 1998
Grant Date -
N/A
app pub date -
Mar 15, 1996
filing date -
Mar 17, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of extracting a contour of a contrasted area in a digitized image made up of pixels having different intensity levels defining the contrasted area is based on minimizing the energy of an initial active contour to which are applied stresses derived from a potential image obtained by processing the image. The potential image is obtained from a multifractal analysis of the image so that each element of the potential image is representative of a local fractal dimension in the locality of a corresponding pixel in the image. This improves the behavior of the active contour when it is deformed by the stresses.
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