发明名称 |
Method of triggering a detector to detect a moving feature within a video stream |
摘要 |
Detectors capable of accurately detecting and tracking moving features of such as faces within a video stream are sometimes too slow to be run in real-time. The present invention rapidly scans video footage in real-time and generates a series of preattemptive triggers indicating the frames and locations within the frames at our deserving of further investigation by a sub real-time detector. The triggers are generated by looking for peaks in a time variant measure such as the amount of symmetry within a frame or portion of a frame. |
申请公布号 |
GB2432064(B) |
申请公布日期 |
2011.01.19 |
申请号 |
GB20050022218 |
申请日期 |
2005.10.31 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
MAURIZIO PILU;DARRYL GREIG |
分类号 |
G06K9/46;G06T7/60 |
主分类号 |
G06K9/46 |
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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