Calculating the parameters of terrestrial laser scanning of industrial object

Abstract

Terrestrial laser scanning of industrial facilities has a number of features, among which are: a large number of laser scanner installation stations, short distances between stations, complex geometry and differences in the reflectivity of the measurement objects materials, as well as a large amount of data derived from the work. To achieve the required accuracy in solving different tasks these features must be taken into account when performing measurements, as well as when processing measurement results. Based on the analysis early research and practical experience, authors propose a generalized technological scheme for terrestrial laser scanning of industrial facilities. In the article the scan settings also calculated, including setting of scan resolution, the choice of the distance to the object and the permissible beam incidence angle. Proposals are also given for the point cloud registration and datum transformation using an Iterative Closest Point Algorithm. The performed studies can be useful for precalculating the accuracy of the terrestrial laser scanning results.