Image analysis – Histogram processing – With pattern recognition or classification
Reexamination Certificate
2004-08-31
2008-10-28
Mariam, Daniel G (Department: 2624)
Image analysis
Histogram processing
With pattern recognition or classification
C382S236000, C348S700000
Reexamination Certificate
active
07444018
ABSTRACT:
A system identifies an abrupt transition in content between two frames, and determines whether the abrupt transition was caused by a shot boundary between the two frames or by a flashlight event. Identification of the abrupt transition in content includes calculating a difference in light intensity histograms between the current frame and a preceding frame, and comparing the histogram difference to a dynamically determined threshold. Further, an average light intensity based method is used to determine whether the abrupt transition was caused by a shot boundary or by a flashlight event.
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Qi Wei
Zhang Dong
Lee & Hayes PLLC
Mariam Daniel G
Microsoft Corporation
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