Filter Package (Liber-D)
The Liber-D Filter package will help you to get cleaner and lighter data.
Edge: removes most stray points that are behind the edges and provides much cleaner scans
Uniform: applies a spatial filter directly on your fls file. Your scans are lighter, especially when creating the scanpointclouds
Angular: removes the scanpoints in a vertical angular range
Circle: dedicated to tanks cleaning. Create a circle (requires the object manager plugin) or a cylinder, and remove the points that are inside or outside the tank
Several scans can be filtered at the same time (multi-tasks)