Weak and small target detection method and device for anti-unmanned aerial vehicle infrared detection system

Abstract

The invention discloses a weak and small target detection method and device for an anti-unmanned aerial vehicle infrared detection system, and belongs to the technical field of infrared detection, and the method comprises the steps: S1, reading an original infrared image; s2, reconstructing a background image; s3, obtaining a residual image containing a weak and small target; s4, obtaining a candidate weak and small target area; s5, obtaining a final background reconstruction image of the infrared image; s6, subtracting the reconstructed final background image from the original infrared image again to obtain a target saliency map containing the weak and small target; and S7, segmenting the weak and small target from the target saliency map by using the threshold segmentation method again, and outputting weak and small target information. According to the method, the problems of low detection rate and high false alarm rate caused by noise, clutter, complex background and other factors in the existing method are solved, the algorithm of the method is simple and efficient, the complexity is low, hardware implementation is easy, and the application requirement of high real-time performance is met.

Description

technical field [0001] The present invention relates to the technical field of infrared detection, and more specifically, relates to a small target detection method and device for an anti-drone infrared detection system. Background technique [0002] Infrared search and track systems are getting more and more attention, no matter in military or civilian fields. Infrared detection technology provides a technical path for long-distance detection of "low, small and slow" moving targets. Infrared weak and small target detection is a basic and core technology for many applications, including space-based infrared early warning systems, sea and air target surveillance, infrared precision guidance, and UAV detection. In particular, with the increasing number of unmanned aerial vehicles, easy access, and great harm, infrared detection, as one of the important means of anti-drone detection, has also received more and more attention. [0003] The detection of weak and small targets i...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a weak target detection method and device for the anti-UAV infrared detection system, which solves the detection problems caused by noise, clutter, complex background and other factors in the existing method The problem of low rate and high false alarm rate, and the algorithm of this method is simple and efficient, low in complexity, easy to implement in hardware, and meets high real-time application requirements, etc.

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