The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 2006
Filed:
Sep. 20, 1999
Kentaro Toyama, Redmond, WA (US);
John C. Krumm, Redmond, WA (US);
Barry L. Brumitt, Redmond, WA (US);
Brian R. Meyers, Bellevue, WA (US);
Kentaro Toyama, Redmond, WA (US);
John C. Krumm, Redmond, WA (US);
Barry L. Brumitt, Redmond, WA (US);
Brian R. Meyers, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
The present invention is embodied in a system and method for maintaining a background model of an image sequence by processing on multiple spatial scales. These multiple spatial scales include a pixel scale, a regional scale and a frame scale. The image sequence undergoes pixel processing that determines a current background model and provides an initial pixel assignment as either a background or a foreground pixel. Region processing further refines the initial pixel assignments by considering relationships between pixels and possibly reassigning pixels. Frame processing further refines the current background model by determining whether a substantial change has occurred in the actual background and, if so, providing a more accurate background model.