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1. (WO2017195754) SURVEILLANCE SYSTEM

Pub. No.:    WO/2017/195754    International Application No.:    PCT/JP2017/017465
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Wed May 10 01:59:59 CEST 2017
IPC: G01S 7/487
G01S 17/88
G08B 13/187
Applicants: KONICA MINOLTA, INC.
コニカミノルタ株式会社
Inventors: FUJITA Junichi
藤田 潤一
Title: SURVEILLANCE SYSTEM
Abstract:
Provided is a surveillance system that detects an object by background subtraction using reflected light of the highest order, for example, and that is capable of detecting an object over a fence, for example. In this surveillance system, a processing section employs, as a background target, a target that is the farthest from a light projection/reception unit in the same light projection/reception direction, and is capable of measuring the distance of a target closer than the background target as a surveillance target. The processing section is capable of setting a mask region within a discretionary range of a surveillance space, and when reflected light from a target that is present within the mask region has been detected, the processing section sets the distance of the target for which the reflected light has been detected to a predetermined distance.