Inventors:
Jeffrey L. Edwards - San Francisco CA, US
Assignee:
Elet Systems L.L.C. - Wilmington DE
International Classification:
G06K 9/34, G06K 9/46, G06K 9/20, G06K 9/32
US Classification:
382173, 382201, 382282, 382293
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.