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Research on tubing Defect Detection Method based on laser scanning

In order to detect the deformation and corrosion of oil tube, a visual inspection method based on laser scanning was proposed based on the principle of line structured light visual inspection. Firstly, a circular laser is used to scan the inner surface of the tubing, and the camera records the scanning results. Then, the laser fringe center line is extracted through image processing method, and 3d reconstruction of the tubing is carried out according to the frame by frame processing results, finally achieving quantitative analysis of tubing defects. Experimental results show that this method has high measurement accuracy and detection efficiency, and can quantitatively identify the defect types.