Visualization of point clouds built from 3D scanning in coal mines

The article presents a way of visualizing point clouds created by 3D scanning in a coal mine. The first part focuses on the choice of individual algorithms for point cloud pre-processing (using the library PCL - Point Cloud Library), namely voxelization, outlier removing and smoothing. Then it is described the main rendering algorithm of the software - the chosen way of point rendering and some more advanced methods including shading and coloring. In the end there are mentioned some optimizations of rendering speed and especially few new methods of providing additional data to the user, especially related to distance measurements.