Method and system for detecting moving object

Abstract

The invention discloses a system for detecting a moving object, which comprises a distance map acquisition module, a total map enhancement module and a detection module; wherein the distance map acquisition module is used to carry out inter-frame differentiation to the input video image data and to build up a background module according to the frame differentiated image to obtain a background image; the current image and the background image are compared to obtain a distance map; the total map enhancement module is used to increase the disparity of the pixel values of the pixel point of the moving object and the noise pixel point on the distance map to obtain a totally enhanced distance map; and the detection module is used to determine the enclosing rectangle of the moving object in thecurrent image according to the totally enhanced distance map. The system improves the stability of the background module and enables the background module to be free from the influence of the moving object at the current scene, and the system is suitable for the detection of moving objects at very low contrast.

Description

Technical field [0001] The invention relates to the field of moving target detection, in particular to a moving target detection method and system. Background technique [0002] In recent years, video surveillance technology has been increasingly used in the security field. With the continuous increase in the amount of surveillance data, surveillance personnel need to spend a lot of time to manually filter the data and select useful video information from it. Repeated work often makes them unable to do what they want. Monitoring personnel urgently need a product that is easier to work, easier to operate and manage to replace the original system. Thus, smart video technology came into being and entered people's lives. [0003] Intelligent Video (IV, Intelligent Video) is the introduction of computer vision (CV, Computer Vision) methods into video surveillance. This technology includes automatic detection of moving targets, target tracking, target classification and behavior under...

AI Technical Summary

Problems solved by technology

This is because, on the one hand, the effective monitoring distance of laser or CCD sensors based on vision will be greatly shortened under such conditions, and cannot provide effective confirmation information for radar sensors, while sensors based on infrared can only detect thermal signals. It is impossible to achieve effective detection of non-heat dissipation signals in the scene; on the other hand, this method is relatively expensive, and the expensive hardware cost also limits its wide application in practice

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