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Feng Jiang

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Proceedings Article | 8 September 2011 Paper

Small infrared target detection algorithm based on mathematical morphology

Feng Jiang, Min-hui Jin, Li-quan Song

Proceedings Volume 8193, 81934L (2011) https://doi.org/10.1117/12.902266

KEYWORDS: Target detection, Image filtering, Image enhancement, Digital filtering, Infrared radiation, Infrared imaging, Image processing, Image segmentation, Filtering (signal processing), Infrared detectors

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In infrared detection, we utilize the infrared radiation emitted from target to detect and identify the target we need as soon as possible, so we can get more reaction time for on the battlefield. However, because of the long distance between target and the sensor, the area of the image into target is very small. Infrared small target detection has become a difficult area of target recognition. In order to improve the accuracy of target detection,, we should preprocessing the infrared image before identifying target, including noise reduction, background suppression and target enhancement, after that, we can lay the foundation for the recognition processing. Firstly, we should filter the image by using median filter. Because the median filter not only filter noise effectively (especially the impulse noise) but also maintain the goal of good details, and the operation of this method is simple and faster. Secondly, we want to suppress the background. In describing the signal characteristics, mathematical morphology has unique advantages, so we suppress the image background in this way. Thirdly, after the above treatment, we can use adaptive threshold to achieve the objectives of the segmentation, and get the binary image obtained.

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