Research on calibration method of rotating axis in line structure light measurement system

Guisuo Xia II; Junfeng Qin; Yanjun Fu III; Ziyang Qin IV

doi:10.1117/12.2512144

7 March 2019 Research on calibration method of rotating axis in line structure light measurement system

Guisuo Xia II, Junfeng Qin, Yanjun Fu III, Ziyang Qin IV

Proceedings Volume 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation; 110533E (2019) https://doi.org/10.1117/12.2512144
Event: 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), 2018, Kunming, China

Abstract

In line-structured light measurement systems, in order to achieve higher 3D reconstruction accuracy, it is necessary to calibrate the rotating shaft accurately. When the sensor and the tested part are in the same horizontal plane, it is impossible to measure the characteristic point data of the whole week, so that the calibration of the rotating shaft is inaccuracy. Therefore, in this paper a calibration method of rotating axis based on coordinate transformation is proposed, the sensor performs rotational axis coordinate calibration above the planar target and transform the coordinate of the rotating axis in the sensor coordinate system above the target into the horizontal coordinate system by means of coordinate transformation. This rotary axis calibration method has a certain feasibility because it adopts the method of full-circle revolving calibration, which can effectively improve the calibration accuracy.

Citation Download Citation

Guisuo Xia II, Junfeng Qin, Yanjun Fu III, and Ziyang Qin IV "Research on calibration method of rotating axis in line structure light measurement system", Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 110533E (7 March 2019); https://doi.org/10.1117/12.2512144

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