Research on Image Processing Technique for Small Targets in Large Field of View Based on Linear CCD

Aiming at the problem of difficulty in detection of small targets in large field of view, an image processing algorithm is proposed to detect small targets in large field of view. The algorithm first performs image preprocessing using grayscale transformation and median filtering, then Gabor matched filtering and threshold segmentation are used to obtain binary image. For getting the position of the small target in target image, the centroid algorithm is presented. Finally, the algorithm is validated by practical experiments. The results show that the algorithm can effectively detect small targets.