Method and system for testing closed caption content of video assets
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United States of America Patent
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Sep 2, 2014
Grant Date -
Jun 7, 2012
app pub date -
Dec 1, 2010
filing date -
Dec 1, 2010
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Abstract
A method and system for monitoring video assets provided by a multimedia content distribution network includes testing closed captions provided in output video signals. A video and audio portion of a video signal are acquired during a time period that a closed caption occurs. A first text string is extracted from a text portion of a video image, while a second text string is extracted from speech content in the audio portion. A degree of matching between the strings is evaluated based on a threshold to determine when a caption error occurs. Various operations may be performed when the caption error occurs, including logging caption error data and sending notifications of the caption error.
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