SCRIBBLE SEGMENTATION METHOD AND APPARATUS
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United States of America Patent
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Issued Date -
Jan 17, 2013
app pub date -
Jul 11, 2011
filing date -
Jul 11, 2011
priority date (Note) -
Abandoned
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Abstract
An apparatus and method of segmenting an image using scribble segmentation is provided. An image is segmented by constraining the membership value of a subset of image elements, solving a weighted biharmonic equation subject to the constrained membership values wherein the weights are determined from similarities between image elements, and determining the final segmentation based on the membership value of each image element. An image may also be segmented by constraining a membership value of a subset of image elements, determining the unknown membership values given the constraints by solving a linear equation system using a multigrid technique, and updating a coarser level of the multigrid hierarchy to account for additional constraints using patch matrices.
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