Method and apparatus for performing a clean background subtraction
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United States of America Patent
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Jan 9, 2007
Grant Date -
Nov 21, 2002
app pub date -
Apr 18, 2002
filing date -
Oct 15, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A background subtraction apparatus of the present invention includes a key point locator for locating key points on a known object type, a boundary point locator for locating boundary points of the known object that make up the edges of the known object, and an edge processor for processing the edges to provide a clean-edged extraction of the known object from a background image. Preferably, the key point locator includes an alignment detector for detecting alignment of an image of the known object type with a skeleton image. Still more preferably, the skeleton image is an exoskeleton image and the known object type is a human being.
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