Near-surface scene infrared small target detection method

Abstract

The invention discloses a near-surface scene infrared small target detection method, which comprises the following steps of (10) infrared image preprocessing: preprocessing an infrared image by adopting a hybrid filtering algorithm; (20) background suppression: performing background suppression on the preprocessed infrared image by adopting Robinson filtering to obtain a background suppression infrared image; (30) target enhancement: calculating an integral image of the background suppression image, calculating background factor parameters, and readjusting the image by using the background factor parameters to obtain a target enhanced image; (40) obtaining the centroid of the target potential area: carrying out threshold segmentation, morphological processing and connected domain marking on the target enhanced image to obtain the centroid coordinates of the target potential area; and (50) obtaining real coordinates of the target: performing time domain association and track discrimination on the potential target to obtain the real coordinates of the target. The small target detection method is high in robustness, low in false alarm rate and high in detection precision.

Description

technical field [0001] The invention belongs to the technical field of infrared target detection, in particular to a small infrared target detection method in a near-ground scene with strong robustness, low false alarm rate and high detection accuracy. Background technique [0002] In recent years, with the development of social economy and science and technology, in terms of military use, infrared small target detection technology, which uses infrared detectors to detect small targets with infrared radiation characteristics, has been widely used in infrared guidance systems, infrared early warning systems and maritime surveillance systems In civilian applications, infrared small target detection has also begun to be used in areas such as drone detection and security monitoring. In general, infrared small target detection technology has high application value in both military and civilian applications. [0003] In foreign countries, infrared small target detection technolog...

AI Technical Summary

Problems solved by technology

[0009] In short, the problems existing in the existing technology are: the traditional infrared small target detection method usually can only realize the detection function in the air or sea scene, and the detection ability of the infrared small target detection method in the near-ground scene is limited, and it is difficult to adapt to the large illumination changes, It is difficult to suppress strong clutter, especially ground clutter, for the detection of small targets in harsh weather environments, which makes these methods have limited detection capabilities and poor robustness; in addition, traditional infrared small target detection methods often only consider the target Spatial distribution characteristics or time-domain motion characteristics limit the performance of target detection, resulting in high detection false alarm rate and low detection accuracy

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