- https://medium.com/@kircisedanur2/notes-on-point-cloud-voxelgrid-ransac-dbscan-and-icp-70a2bac29890
- https://medium.com/point-cloud-python-matlab-cplus/implementation-of-dbscan-clustering-algorithm-based-on-pcl-with-code-c-26a2a8f049b5
- https://medium.com/@Chim-SO/point-cloud-segmentation-in-python-2fdbf5ea0617#e1c2