Method and device for detecting lost articles in security monitoring

Abstract

The invention provides a method and device for detecting lost articles in security monitoring, belonging to the field of video monitoring. The method comprises the following steps of: dividing a scene plane into a plurality of regions; carrying out two-frame background storage on a certain relevant region of the plurality of regions and performing subtraction within a certain interval; judging whether a target lost article exists in the relevant region according to the subtraction result, and judging whether a found article is the target lost article; if the target lost article exists, extracting the lost article and alarming; and if no lost article exists, continuously monitoring other regions. By adopting a moving detection and two-frame background subtraction method, the invention avoids algorithm complexity increase caused by incapability of accurately tracking or stricter requirement for a tracking strategy when a moving object moves too fast or background updating speed is overhigh and even the object is distorted in order to meet a hardware requirement is avoided, and erroneous judgment caused by temporarily shielding the object is also avoided.

Description

technical field [0001] The invention belongs to the field of video monitoring, in particular to a method and device for detecting items left in security monitoring. Background technique [0002] Today, the field of security monitoring is developing rapidly and gradually integrated into people's daily life, and intelligent video surveillance is the most familiar security monitoring system. [0003] At present, in practical applications, intelligent monitoring is mainly used to monitor important occasions and important items to achieve the purpose of ensuring public safety, such as: banks, bus stations, railway stations, airports and other densely populated areas; libraries, archives Museums, art galleries, auction houses and other important data protection areas; campuses, residential quarters, companies, state agencies and other important living places and other areas of security monitoring. [0004] The leftovers in the place are both harmful and non-hazardous to the surro...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a detection method for leftover items in security monitoring, aiming to solve the problem that the existing method is based on the premise that the target can be independently and stably tracked to obtain credible results, if the target is distorted or maliciously blocked Under the circumstances, and in real life, some criminals have extremely concealed means of committing crimes, the method of tracking, separating and judging whether the target is still is incapable, and it is very likely to cause the problem of missed detection or false detection

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