Video surveillance system based on Gaussian mixture modeling with two-type learning rate control scheme
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United States of America Patent
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Dec 3, 2013
Grant Date -
Jun 7, 2012
app pub date -
Dec 7, 2010
filing date -
Dec 7, 2010
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Abstract
In the present invention, we identify that such a tradeoff between robustness to background changes and sensitivity to foreground abnormalities can be easily controlled by a new computational scheme of two-type learning rate control for the Gaussian mixture modeling (GMM). Based on the proposed rate control scheme, a new video surveillance system that applies feedbacks of pixel properties computed in object-level analysis to the learning rate controls of the GMM in pixel-level background modeling is developed. Such a system gives better regularization of background adaptation and is efficient in resolving the tradeoff for many surveillance applications.
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