Light spot denoising method of long-distance laser triangular displacement measurement system

The invention relates to the technical field of optical detection, in particular to a light spot denoising method for a long-distance laser triangular displacement measurement system, which comprises the following steps of: constructing a double-reflection long-distance laser triangular measurement system, acquiring a light spot image sample, graying and extracting a region of interest to obtain a region of interest image; performing logarithmic transformation on the image of the region of interest; decomposing the transformed image into a pair of down-sampling feature maps through a down-sampling operator; constructing a loss function of the neural network; minimizing the loss function of the neural network to obtain a trained lightweight neural network; and inputting the original light spot image into the lightweight neural network to obtain a denoised light spot image. According to the light spot denoising method, the noise of the light spot image is obviously inhibited, the problem that a traditional deno