Three-Dimensional Point Cloud Feature Change Detection Algorithm of Open-pit Mine Based on Discrete Curvature Analysis

Open-pit mine is an industrial production site produced by human intervention, easy to make human and nonhuman changes. Landslide and stairs are the main model structure of open-pit characteristics, changes of landslide and stairs can be clearly described by using the changes of stairs feature lines, but changes of stairs feature lines correspond to the changes of landslide and stairs. The slope sliding and change monitoring have affected safety production and management of open-pit mine. Based on the algorithm research, two laser scanning data of open-pit mine are used for experiments in the paper. The correctness of the algorithm in this dissertation were conducted.