发明名称 |
High speed video action recognition and localization |
摘要 |
An apparatus for detecting an action in a test video. In an illustrative embodiment, the apparatus includes a first mechanism for receiving a query for a particular action via a query video. A second mechanism employs motion vectors associated with the test video to compute one or more motion-similarity values. The one or more motion-similarity values represent motion similarity between a first group of pixels in a first frame of a query video and a second group of pixels in a second frame of the test video based on the motion vectors. A third mechanism uses the one or more similarity values to search for the particular action or similar action in the test video. In a more specific embodiment, another mechanism aggregates the similarity values over a predetermined number of frames to facilitate estimating where the particular action or version thereof occurs or is likely to occur in the test video.
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申请公布号 |
US8027542(B2) |
申请公布日期 |
2011.09.27 |
申请号 |
US20070764754 |
申请日期 |
2007.06.18 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA |
发明人 |
AHAMMAD PARVEZ;YEO CHUOHAO;RAMCHANDRAN KANNAN;SASTRY S. SHANKAR |
分类号 |
G06K9/48;G06K9/00;G06K9/36;H03F1/26;H04N5/14;H04N7/12 |
主分类号 |
G06K9/48 |
代理机构 |
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