Methods and systems for determining distribution mean level...

Details Methods and systems for determining distribution mean level... Methods and systems for determining distribution mean level...

2007-11-06

2007-11-06

Tran, Douglas Q. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Memory

C358S464000, C702S180000

Reexamination Certificate

active

10342358

ABSTRACT:
Techniques for estimating an average background value and an average foreground value of an image data formed by a plurality of pixels by selecting a first plurality of pixels forming a first calculation window from the plurality of pixels, determining at least first, second and third statistical moments for the first plurality of pixels, and determining at least one of average background value and average foreground value using the at least first, second and third statistical moments determined for the first plurality of pixels.

REFERENCES:
patent: 5602891 (1997-02-01), Pearlman
patent: 6043900 (2000-03-01), Feng et al.
patent: 7015931 (2006-03-01), Cieplinski

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