BEHAVIOR DETECTION DEVICE, BEHAVIOR DETECTION METHOD AND MONITORED PERSON MONITORING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a behavior detection device, a behavior detection method and a monitored person monitoring device that can detect prescribed behaviors in monitored persons more accurately on the basis of images by a single imaging device.SOLUTION: According to one example of a behavior detection device of the present invention, a sensor device SUa comprises: an imaging unit 1 that is one example of an image acquisition unit acquiring images of photograph objects having the photograph objects viewed from above; first and second portion extraction units 22 and 24 that respectively extract a head of a first portion and a main body portion of a second portion different from each other in a human body from the image of the photographing object; first and second behavior determination units 23 and 25 that use first and second behavior detection algorithms different from each other respectively for detecting prescribed behaviors in monitored persons to thereby determine the prescribed behaviors respectively on the basis of each of the first and second portions; and a final determination unit 26a that finally determines the prescribed behavior on the basis of a first determination result of the first behavior determination unit 23 and a second determination result of the second behavior determination unit 25.SELECTED DRAWING: Figure 2