Suspicious object detection method and device

Abstract

The invention provides a suspicious object detection method and device, and belongs to the field of image processing. The method comprises the following steps that: a computer receives video information collected by a camera in real time; a pre-stored background image is taken as a basis, and a motion target detection algorithm is adopted to obtain a target under a motion state in each frame of image of the video image; on the basis of a motion target tracing algorithm, carrying out image segmentation on the video information to obtain the sensitive time of the target under the motion state in the surveillance area of the camera, wherein the sensitive time is the dwell time or the extinction time of the target under the motion state in the surveillance area of the camera; comparing the sensitive time with the first preset time; and when the sensitive time exceeds the first preset time, on the basis of a support vector machine classification algorithm, whether the target under the motion state is the suspicious object or not is judged. The method is used for detecting the suspicious object with the abnormal dwell time so as to reduce potential safety hazards in public places including airports, railway stations, metro stations, bank ATM (Automatic Teller Machine) and the like.

Description

Technical field [0001] The present invention relates to the field of image processing, in particular to a suspicious object detection method and device. Background technique [0002] With the rapid development of urban economy, the expansion of urban areas and the increase of urban population, the current pressure on urban public security management is also increasing, and the increase in public security police is far from meeting actual needs. Traditional manpower prevention and The public security management model based on post-event processing has begun to restrict the further improvement of the level of urban public security management, especially due to the impact of terrorist attacks, suspicious objects with abnormal detention time have caused problems in public places such as airports, railway stations, subway stations, bank ATM machines, etc. A huge safety hazard. Summary of the invention [0003] In view of this, the purpose of the embodiments of the present invention is...

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Problems solved by technology

[0002] With the rapid development of urban economy, the expansion of urban areas and the increase of urban population and other factors, the pressure on urban public security management is also increasing, and the increase of public security police force is far from meeting the actual needs. Traditional manpower prevention and The post-processing public security management model has begun to restrict the further improvement of urban public security management, especially under the influence of terrorist attacks, suspicious objects with abnormal residence time have caused serious damage to airports, railway stations, subway stations, bank ATMs and other public places. huge security risk

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