In order to accurately realize the defect detection of pipeline inwall, this paper proposes a measurement system made
up of cross structured light, single CCD camera and a smart car, etc. Based on structured light measurement technology,
this paper mainly introduces the structured light measurement system, the imaging mathematical model, and the
parameters and method of camera calibration. Using these measuring principles and methods, the camera in remote
control car platform achieves continuous shooting of objects and real-time rebound processing as well as utilizing
established model to extract 3D point cloud coordinate to reconstruct pipeline defects, so it is possible to achieve 3D
automatic measuring, and verifies the correctness and feasibility of this system. It has been found that this system has
great measurement accuracy in practice.
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