System and method for semantic video segmentation based on joint audiovisual and text analysis
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United States of America Patent
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Feb 21, 2012
Grant Date -
Jul 24, 2008
app pub date -
Mar 25, 2008
filing date -
Aug 24, 2005
priority date (Note) -
Expired
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Abstract
System and method for partitioning a video into a series of semantic units where each semantic unit relates to a generally complete thematic topic. A computer implemented method for partitioning a video into a series of semantic units wherein each semantic unit relates to a theme or a topic, comprises dividing a video into a plurality of homogeneous segments, analyzing audio and visual content of the video, extracting a plurality of keywords from the speech content of each of the plurality of homogeneous segments of the video, and detecting and merging a plurality of groups of semantically related and temporally adjacent homogeneous segments into a series of semantic units in accordance with the results of both the audio and visual analysis and the keyword extraction. The present invention can be applied to generate important table-of-contents as well as index tables for videos to facilitate efficient video topic searching and browsing.
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