发明名称 |
Method and system for re-identifying broadcast segments using statistical profiles |
摘要 |
A method and system for extracting segments from a broadcast television signal uses a mean display attribute value of pixels of each successive frame of a video component of the signal to identify segment transitions. Elapsed times between the identified segment transitions are compared with expected durations of segments, in order to detect intervals that are likely to constitute segments. Groups of the detected intervals are subjected to tests to see if they are temporally arranged in an expected distribution typical of segments in broadcast signals. The mean display attribute values concurrent with each detected segment are then used to form a statistical profile for the segment. These statistical profiles may be used to identify re-broadcast segments. Further a stream of mean audio amplitudes is preferably used to supply further segment transitions, to improve segment detection, and to provide more statistical values.
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申请公布号 |
US7064796(B2) |
申请公布日期 |
2006.06.20 |
申请号 |
US20020310190 |
申请日期 |
2002.12.05 |
申请人 |
ELODA INC. |
发明人 |
ROY YVES;POULIOT JEAN-FRANCOIS;DUPUIS JEAN-CHARLES |
分类号 |
H04N5/14;G06K9/00;H04H9/00;H04H60/37;H04H60/56;H04H60/58;H04H60/59;H04N7/00 |
主分类号 |
H04N5/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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