Study On Imaging And Image Processing Of Active Laser Guidance

Active Laser Guidance technology is one of the military applications in research currently, including laser ranging system, laser imaging system, image processing system, object recognition system and a series of others, it has irreplaceable advantages and significant research value in the military field due to its high precision and high anti-interference.Active laser guidance system is studied in this paper, firstly the active laser guidance technology background, significance and research progress are introduced; secondly the composition and principle of active laser guidance system are described, including laser ranging, laser imaging, image processing modules and its detailed workflow, various factors on range accuracy and image quality are analyzed, the delay circuit, range-gated, antiinterference modulation to reduce error and improve the image quality are discussed; thirdly the experiment is designed, laser ranging and laser imaging are done, based on the result, the error is calculated and analyzed; finally the experiment image is used in simulation of image processing, that respectively pretreatment process includes mean filter and median filter, edge detection process includes one-order edge detection, second-order edge detection and Otsu method, the result is compared by using evaluation standard PSNR and SSIM, it is proved that processing performance of 3×3 template in the median filter and Otsu method algorithm is better.