1：Experimental Design and Method Selection:

A binocular stereo vision sensor calibration method using a three-dimensional virtual target constructed by a precision two-axis turntable, laser tracker and a single calibration reference point is studied. The precision two-axis turntable drives the camera capturing a fixed single optical reference point to make two-dimensional rotation, which construct a precise reference control field and achieve calibration.

2：Sample Selection and Data Sources:

The tracker target ball is placed in front of the precision two-axis turntable and the laser tracker, and the laser tracker measures the target ball coordinates of the tracker. The optical reflective ball and the tracker target ball can achieve precision non-destructive interchange, as the optical reference point of the binocular stereo vision sensor calibration.

3：List of Experimental Equipment and Materials:

Precision two-axis turntable, laser tracker, single calibration reference point, GT1920 digital cameras.

4：Experimental Procedures and Operational Workflow:

The binocular stereo vision sensor performs two-dimensional rotation together with the precision two-axis turntable, photographs the optical reference point, and simultaneously records the angular value of each rotational position of the precision two-axis turntable.

5：Data Analysis Methods:

Based on the theoretical model of binocular stereo vision sensor imaging and the image position of the center of the optical reference point at each rotational position of the precision two-axis turntable, and the established minimum objective function, the optimal solution of the objective function is obtained by the nonlinear optimization method.