06411744 is referenced by 376 patents.

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.

Title
Method and apparatus for performing a clean background subtraction
Application Number
9/174491
Publication Number
6411744 (B1)
Application Date
October 15, 1998
Publication Date
June 25, 2002
Inventor
Jeffrey L Edwards
San Jose
CA, US
Agent
Van Pelt & Yi
US
Assignee
Electric Planet
CA, US
IPC
G06K 9/32
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