Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 5, 2010
Patent Application Number
10899838
Date Filed
July 26, 2004
Patent Primary Examiner
Patent abstract
A key frame representative of a sequence of frames in a video file is selected. The sequence of frames is divided into shots, sequences of frames captured by a single continuous operation of the camera, by detecting shot boundaries. Shot boundaries are detected by measuring changes in motion activity between frames using measures of pixel intensity and histogram differences between frames. The most interesting shot in the sequence of frames is selected using measures of motion activity, spatial activity, skin pixel color and shot length. The key frame is selected in the most interesting shot using measures of spatial activity and motion activity.
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