3D laser scanning system for rock surface measurement

A 3D laser scanning system for rock surface measurement was developed based on structured light measuring technique. The structure of the system was designed. A fast calibration method for the 3D laser scanning system was presented in detail. After the system was calibrated, the measuring precision was verified in the depth direction. Experimental results proved that the measuring precision of the system is better than 0.02mm. And the system can achieve high performance during practical application.