Image analysis – Image segmentation
Reexamination Certificate
2006-11-14
2006-11-14
Wu, Jingge (Department: 2624)
Image analysis
Image segmentation
C382S190000, C382S194000
Reexamination Certificate
active
07136525
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.
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Brumitt Barry L.
Krumm John C.
Meyers Brian R.
Toyama Kentaro
Fischer Craig S.
Le Brian
Lyon & Harr L.L.P.
Microsoft Corporation
Wu Jingge
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