Evaluate the accuracy when building digital models of objects and terrain using ground laser scanning for teaching Lidar technology

Abstract

This article evaluates the accuracy of constructing digital models of objects and terrain using ground-based laser scanning methods. The study shows that errors in the vectorization process of objects depend on the divergence of the laser beam. The scanners are classified into two groups based on this divergence, which affects the accuracy of terrain map construction. The results indicate significant differences in the accuracy of 3D models constructed from ground laser scan data across various types of scanners. The accuracy of 3D models is influenced by various factors and measurement errors. Experimental results show that the errors in constructing 3D models range from one to seven times the standard error of the measurement results, depending on the scanning mode and other factors.