Method for estimating the type of the group of picture structure of a plurality of video frames in a video stream
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United States of America Patent
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Jan 19, 2016
Grant Date -
Aug 22, 2013
app pub date -
Jul 26, 2011
filing date -
Jul 30, 2010
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Abstract
A method for estimating the type of the GoP structure of a plurality of video frames in a video stream by estimating their frame types includes: capturing frame sizes in bytes of every video frame subsequent to an initial I-frame to obtain an array of frame sizes by exploiting features of a transport layer carrying the video stream; converting, after a number of frames, the array of frame sizes into an array of zeros and ones; matching the binarized array of frame sizes to a number of predefined short basic binary patterns, said predefined binary patterns depicting all GoP structures to be considered; converting the result of said matching to form a single score value; and determining the particular pattern of the number of predefined patterns of binaries having the best score value, according to a predefined metric.
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