Laser point vision guidance method for non-orthogonal axis laser total station

The invention relates to a laser point vision guidance method for a non-orthogonal axis laser total station, comprising the following steps: turning off a laser, collecting a digital image containinga target, and performing perspective projection correction on the collected target image: binarizing the corrected target image by using an OTSU algorithm; performing edge detection on the processed binarized image by using a Sobel operator; extracting the centroid of the target by a gray centroid method; performing preprocessing and centroid extration on a laser point image by a processing methodthe same as that for the target image, and processing the laser point image to obtain a laser point centroid; roughly guiding a laser point to be near the position of the target centroid; precisely guiding the laser point to the position of the target centroid; enabling a laser spot to constantly approach the center of the target by using a binary search strategy, and when the distance between the two is less than a thres