Infrared target detection method in offshore backlight environment

Abstract

The invention provides an infrared target detection method in an offshore backlight environment. The method comprises the steps of judging the smoothness degree of the sea surface through a standard deviation; if judging that the sea surface is a rough sea surface, carrying out Gaussian difference preprocessing, Gaussian filtering and downsampling operation with the step length being 2 and constructing a gray level Gaussian pyramid graph under multiple scales; carrying out high-scale'central-peripheral difference and applying iterative nonlinear normalization operator to obtain feature map ingray form;;if judging that the sea surface is smooth, carrying out Gabor filtering and downsampling operation with the step length being 2 and constructing directional Gaussian pyramid graphs under multiple scales; carrying out low-scale'central-peripheral 'difference and applying an iterative nonlinear normalization operator to obtain characteristic pattern in a direction form; and finally, performing an accumulated scale linear superposition operation on the feature map, and obtaining a saliency map by applying an iterative nonlinear normalization operator; carrying out self-adaptive binarization segmentation operation on the saliency map to obtain a detection result.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an infrared target detection method in a sea backlight environment. Background technique [0002] In recent years, the maritime navigation environment has become increasingly complex, and maritime emergencies are increasing. The complex maritime environment is the main factor for emergencies. At present, the hardware detection technologies used in the sea mainly include: 1) visible light imaging technology; 2) radar technology; 3) infrared imaging technology; compared with visible light imaging technology, infrared imaging technology has the advantages of strong ability to penetrate smoke and can work day and night, and Compared with radar technology, it has the advantages of simple results, small size, light weight, high resolution, and good concealment. Therefore, infrared imaging technology has become the main method for maritime target search and rescue. ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problem that there is still no reliable detection method in the infrared backlight environment in the prior art, the method of the present invention improves the traditional visual attention model, and proposes an infrared target detection method in the sea backlight environment, which solves the problem of existing In the existing technology, there is a lack of reliable detection methods in the infrared backlight environment

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