Elevator passenger comprehensive safety intelligent monitoring method based on machine vision

Abstract

The invention provides a comprehensive safety intelligent monitoring method capable of effectively and quickly judging if such abnormal activities as trapping, falling and violence are generated in a car to timely and accurately give an alarm so as to effectively relieve the burden of monitoring staff. The comprehensive safety intelligent monitoring method specifically comprises the following steps: an image shot by a camera with a fixed position is used as a background model; a differential image is obtained through a difference between a present video frame and the background model by a background subtracting method; the binarization processing is performed for the differential image according to a binarization formula; then, the noise is removed through a morphology filtering algorithm; finally, the area communication analysis is performed for the noise removing result; the edge profile of the binarized image is extracted by a Canny operator; and the extracted foreground profile is compared with a human body image template library by a template matching algorithm to judge if one or more persons are in the car and if the abnormal activities are generated to trigger warning.

Description

technical field [0001] The invention relates to an intelligent monitoring method for abnormal activities in elevators based on machine vision. Background technique [0002] While elevators bring convenience and convenience to people, they also challenge people's safety. Since the elevator is a relatively closed public place, on the one hand, it provides an excellent place for criminals to carry out illegal activities, and incidents such as fights and robberies in the elevator car occur frequently; on the other hand, when a person takes the elevator alone, especially It is the elderly who may have a sudden illness and fall in the elevator. If they are not discovered in time, it may be life-threatening. In order to build a safe living environment, video monitoring devices are installed in the elevator cars of many high-rise residential areas, hotels, and buildings. However, the current video surveillance systems installed in elevator cars, like most of the video surveillance...

AI Technical Summary

Problems solved by technology

[0021] In order to solve the problems existing in the current elevator safety monitoring and processing method based on machine vision, such as complicated information collection, large amount of data processing, and difficulty in popularization and application in residential communities, the present invention provides a comprehensive safety intelligent monitoring method, which uses lightweight data collection and Algorithm processing can quickly and effectively determine whether there are abnormal activities such as trapped people, falls, and violent incidents in the car, so as to issue alarms in a timely and accurate manner, effectively reducing the burden on monitoring personnel

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