Aiming at the problem of error accumulation when the rotating splicing system step-by-step calibrates the camera and the truntable central axis

a synchronization calibration method of camera and turntable center axis

a synchronization calibration method of camera and turntable center axis based on 2D target is proposed. The method uses the rotation of the turntable to adjust the pose of the 2D target

through the same set of experimental data

to complete the two calibration processes of the camera and the central axis of the turntable. Experimental result shows that in the four-view point cloud stitching test

the average value of the deviation between the diameter of the standard ball and the actual diameter after stitching of the standard ball is 0. 129 3 mm; the mean value of the deviation between the model thickness and the actual thickness of the blade after air compressor blade splicing is 0. 119 2 mm and the average deviation rate is 4. 47 %

which meets the blade welding trajectory planning needs. As it turns out

this method simplifies the system calibration process and improves the system calibration efficiency without reducing the precision of point cloud measurement and splicing.