'GIM International' has published – and will no doubt continue to publish – many articles about point clouds: huge collections of (surface) points. Taken together, they represent the world at its best: up to date, and with every detail there is to be known. Most articles pay particular attention to the data acquisition of such point clouds, as they are obtained from 1) Lidar time-stamped reflections with the advantage of indicating ‘empty’ space between the observation po... (read more)