发明名称 |
METHODS AND APPARATUS FOR COMPARING VIDEOS |
摘要 |
<p>A method for comparing videos includes detecting local features in frames of a video and determining the positions of detected local features in a first frame compared to their respective positions in a succeeding second frame. For at least some of the detected local features, a movement indicator is generated representing the position of a local feature in the first frame relative to the position of that local feature in the second frame, the movement indicator including an orientation, to obtain a plurality of movement indicators. Movement indicators are grouped by orientation ranges. The number of grouped movement indicators in an orientation range are summed to obtain a value for that orientation range. A time series of values for at least one given orientation range is obtained by determining the positions of detected local features in a first frame compared to their respective positions in a succeeding second frame for a plurality of pairs of frames. For at least one orientation range, a first time series of values for a first video is compared with a second time series of values for a second video to determine the similarity of the first and second videos.</p> |
申请公布号 |
EP2742459(A1) |
申请公布日期 |
2014.06.18 |
申请号 |
EP20120751642 |
申请日期 |
2012.07.31 |
申请人 |
ALCATEL LUCENT |
发明人 |
ZHANG, JOHN, R.;REN, YANSONG;CHANG, FANGZHE;WOOD, THOMAS, L. |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
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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