Large-object three-dimensional measurement LED label calibration method based on tracker

The invention discloses a large-object three-dimensional measurement LED label calibration method based on a tracker. The method includes the following steps of (1) matching the LED labels by means of a trajectory-based LED label matching method: a stereoscopic tracker observes the motion trajectory of the LED labels in the view field of the stereoscopic tracker; matching the trajectories of the LED labels observed in the two cameras of the stereoscopic tracker; and measuring the three-dimensional coordinates of the LED labels in the stereoscopic tracker coordinate system according to the matching result; and (2) calibrating the LED labels with an LED label calibration method based on a checkerboard: the three-dimensional coordinates of the LED labels in the stereoscopic tracker coordinate system are converted into the coordinate system of a three-dimensional scanner to realize the calibration of the LED labels. According to the method, the LED label matching accuracy is high, the point characteristics of the