Single-frame infrared image based real-time detection method of point target
An infrared image, real-time detection technology, applied in image analysis, image data processing, instruments, etc., can solve the problems of limited sensor resolution, random interference, imperfect thermal imaging system, high false alarm rate, etc., and achieve simple and easy detection algorithm It is easy to implement in real time by hardware and takes up less system storage.
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[0066] The real-time detection method of a point target based on a single frame infrared image of the present invention performs the same processing on each pixel in the image. The flowchart is as follows Figure 5 As shown, the specific detection steps are as follows:
[0067] (1) Gray switch judgment
[0068] By comparing the gray level of the center pixel with other pixels in the 3×3 neighborhood, it is judged whether the center pixel is the maximum value point of the neighborhood. If it is a maximum value point, proceed to step (2) and step (3) at the same time, otherwise the point in the finally obtained binary image is set to 0, and the next pixel is determined;
[0069] (2) Mean filtering and ratio threshold judgment
[0070] First, calculate the average gray value of the 3×3 neighborhood with the pixel as the central reference point, and then calculate the difference between the gray value of the pixel and the average as the difference between all pixels in the neighborhood wi...
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