We present an approach of modelling and calibration of an active laser beam-scanning triangulation measurement system. The system works with the pattern of two-dimensional beam-scanning illumination and one-dimensional slit-scanning detection with a photo-multiplier tube instead of a CCD camera. By modelling the system-fixed coordinate, we describe the formulation of 3D computation and propose a calibration method in terms of LSE using a planar fitting algorithm. As a sensor-dependent solution, the estimation is refined in the domain of sensing variables. Result of calibration of the real system and a brief analysis of systematic errors are given.
- Planar fitting
- Laser scanning
- Triangulation measurement
Wang, G. Y., Zheng, B., Li, X., Houkes, Z., & Regtien, P. P. L. (2002). Modelling and calibration of the laser beam-scanning triangulation measurement system. Robotics and autonomous systems, 40(4), 267-277. https://doi.org/10.1016/S0921-8890(02)00247-6