Suspicious person detection device, suspicious person detection method and suspicious person detection program

摘要

A suspicious person detection device is provided with a person detection section capable of detecting the position of persons for each of the persons, a person tracing section for continuously tracing the position of a person detected by the person detection section, and a suspicious person detection section for detecting a suspicious person according to the result of the trace of the person tracing section, wherein the person tracing section determines a person authenticated as a result of the agreement with a predetermined first condition as an authenticated person and determines a person who has agreed with a predetermined second condition associated with the authenticated person as an accompanying person at the time of the authentication, and wherein the suspicious person detection section issues a warning when the accompanying person is away from the authenticated person by a predetermined first distance or more.

主权项

1. A suspicious person detection device comprising:
a person detection unit to be capable of detecting a position of a person on a per person basis; a person tracking unit to continuously trace the person's position detected by said person detection unit; and a suspicious person detection unit to detect a suspicious person on the basis of a tracking result of said person tracking unit, wherein said person tracking unit determines, as an already-authenticated person, a person authenticated when coinciding with a predetermined first condition, and determines, as an accompanying person, a person who coincides with a predetermined second condition related to the already-authenticated person when authenticated, said suspicious person detection unit, when the accompanying person is distanced at a predetermined first distance or longer from the already-authenticated person, issues an alarm, and the predetermined first distance is set based on a difference in velocity vector between the accompanying person and the already-authenticated person, the difference in the velocity vector being defined by a difference in moving velocity and an angular difference in moving direction.