US Patent 7843512 Identifying key video frames
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Patent abstract
A rate of change of visual content (compared to an adjacent video frame) of a video frame is determined, and the video frame is selected as a key video frame if the rate exceeds a threshold value. In an embodiment, to compute the rate, the motion energy vector magnitude (square of displacement magnitude) of each moved pixel of the current frame is determined, and an average displacement magnitude is determined. The average displacement magnitude may also be used to determine the rate.
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Patent Inventor Names
Ibrahim M Mohamed0
Lokesh R Boregowda0
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US Patent 07843512 Identifying key video frames US Patent 7843512 Identifying key video frames
Infobox
Patent Number
078435120
Patent Number
78435120
Edits on 24 Sep, 2022
Golden AI
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Patent Jurisdiction
Patent Number
078435120
Date of Patent
November 30, 2010
0Patent Application Number
107089050
Date Filed
March 31, 2004
0Official Website
Patent Primary Examiner
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US Patent 07843512 Identifying key video frames
Infobox
Is a
Patent jurisdiction
Patent number
07843512
Date of patent
November 30, 2010
Patent application number
10708905
Date Filed
March 31, 2004
Patent primary examiner
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