| 摘要 |
A suspicious individual can be detected more accurately. A face detecting unit detects a face image of an approaching individual from a monitor image, and a characteristic amount detecting unit detects the characteristic amount of the approaching individual from the face image. A collating unit identifies an approaching individual by collating the characteristic amount of the approaching individual with the characteristic amount of an authorized individual which is recorded in an authorized individual information recording unit and the characteristic amount of a previously detected individual which is recorded in an approach information recording unit. An approaching activity detecting unit and an abnormal activity detecting unit compute the degree of suspiciousness of the approaching individual on the basis of the frequency with which the approaching individual approaches a target of monitoring, time at which the approaching individual approaches a target of monitoring, distance by which the approaching individual approaches a target of monitoring, and the like. A suspiciousness degree judgment unit judges whether the approaching individual is a suspicious individual or not, on the basis the degree of suspiciousness. The present invention can be applied to an on-vehicle monitoring system.
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