Introduction - If you have any usage issues, please Google them yourself
When a beam of line laser is projected onto a photographic paper of a double-planar checkerboard, the Gaussian beam is analyzed using a CCD camera. The cross-sectional light intensity of the light bar is approximately Gaussian, and the center of the light bar can be considered as the distribution of light intensity. The peak point, so using the weighted average method to get the center coordinates of the two light bars (u1', v1') and (u2', v2')