Open AccessINFLUENCE OF TIE POINTPLACEMENT DENSITY ON MOBILE LASER SCANNING DATA ADJUSTMENT RESULTS
Author(s) -
Karkokli Hamid Majid Saber
Publication year - 2021
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2021-1-65-74
Subject(s) - point cloud , laser scanning , reliability (semiconductor) , position (finance) , computer science , point (geometry) , identification (biology) , algorithm , product (mathematics) , data mining , laser , artificial intelligence , mathematics , optics , geometry , power (physics) , physics , botany , finance , quantum mechanics , economics , biology
The main stage of the mobile laser scanning data processing results, affecting the total accuracy of creating the final product, is the relative adjustment of trajectories and point clouds obtained during the re-passage of the survey system over the same area. The MLS data adjustment is performed based on the search for tie points in the overlapping areas of the driveways. Corresponding points can be added both interactively and automatically found using various algorithms and techniques. The accuracy of the adjustment depends on the reliability of the tie point identification, their number and the algorithm for searching local corrections to the position of the laser points. The study of the adjustment results depending on these factors is performed. It is shown how the selected adjustment algorithm and its parameters affect the final accuracy.