Suspicious personnel detection method and system

Abstract

The invention provides a suspicious personnel detection method and system. The method comprises the steps that video data acquired by a video acquisition module are received; at least one pedestrian is recognized from the received video data so as to obtain the pedestrian image of the pedestrian; pedestrian characteristics are extracted from the pedestrian image; and the probability that the pedestrian is suspicious is computed based on the extracted pedestrian characteristics. The suspicious personnel detection method and system do not depend on field judgment of monitoring personnel or require a database based on a blacklist or a similar database and obtain based on the real-time video data through computation completely so that monitoring efficiency and accuracy can be greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and system for detecting suspicious persons. Background technique [0002] Video surveillance is a commonly used security method at present. Video surveillance in densely populated areas such as railway stations, airports, subway stations, and squares plays an important role in protecting the safety of people's lives and property. [0003] In the traditional video surveillance solution, the monitoring personnel need to keep their attention at all times, observe closely, and judge suspicious personnel mainly rely on the personal ability and experience of the monitoring personnel. Moreover, the monitoring personnel are easily fatigued during long working hours, which further reduces the quality of monitoring. As a result, the monitoring system can often only play the role of forensics after the fact, and cannot play the role of prevention in advance. [0004] In ...

AI Technical Summary

Problems solved by technology

But these schemes all rely on a database of dangerous people, the blacklist, and the system cannot provide any information about people who are not on the blacklist

[0005] In order to make up for this shortcoming of video surveillance, video surveillance often cooperates with measures such as patrols and random inspections to prevent crimes, but patrols and random inspections also depend on the level of security personnel, and there are problems such as experience, feeling, luck, and low efficiency. question

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