Detection of local motion between image frames
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United States of America Patent
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May 7, 2013
Grant Date -
Jun 23, 2011
app pub date -
Dec 17, 2009
filing date -
Dec 17, 2009
priority date (Note) -
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Abstract
A system and method for detecting local motion between image frames are presented. Each image frame may include a plurality of pixels. A first image frame and a second image frame may be received. Values of a first plurality of pixels at first pixel locations of the first image frame may be read. Values of a second plurality of pixels at second pixel locations of the second image frame may be read. The first pixel locations of the first image frame may correspond to the second pixel locations of the second image frame. A first delta function, based on differences between pixel values between the first and second image frames, may be calculated to produce a first output. The first output may be compared to a first one or more thresholds. It may be determined whether local motion has occurred in the second image frame based on said comparing.
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