| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a person motion detection device that detects a motion of a person from video photographed by a camera. <P>SOLUTION: A person motion detection device 1 includes: feature point track information generation means 10 of generating a track of feature points as feature point track information for each frame image of video; feature quantity extraction means 20 of generating a track feature quantity by accumulating a direction and a magnitude of a movement vector at a feature point for each range width obtained by dividing a possible range thereof by a predetermined number; learning data storage means 40 of clustering a plurality of track feature quantities into a predetermined number of clusters, and finding and storing, as learning data, a distribution obtained by accumulating a plurality of track feature quantities constituting a known motion by the clusters; and operation identification means 30 of generating a distribution obtained by accumulating clusters that the track feature quantities belong to from a plurality of track feature quantities within a predetermined time section, and comparing the distribution with the learning data to identify the motion of the person. <P>COPYRIGHT: (C)2012,JPO&INPIT |
