Methods and apparatus for chatter reduction in video object segmentation using a variable bandwidth search region
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United States of America Patent
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Mar 3, 2015
Grant Date -
May 23, 2013
app pub date -
Jan 15, 2013
filing date -
Oct 30, 2009
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Abstract
Systems, methods, and computer-readable storage media for chatter reduction in video object segmentation using a variable bandwidth search region. A variable bandwidth search region generation method may be applied to a uniform search region to generate a variable bandwidth search region that reduces the search range for segmentation methods such as a graph cut method. The method may identify parts of the contour that are moving slowly, and reduce the search region bandwidth in those places to stabilize the segmentation. This method may determine a bandwidth for each of a plurality of local windows of an image according to an estimate of how much an object in the image has moved from a previous image. The method may blend the bandwidths for the plurality of local windows to generate a blended map. The method may then generate a variable bandwidth search region for an object according to the blended map.
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