LIDARpoint cloud are becoming more and more available. Devices are easy to get, not too expensive, and provide very accurate 3D points. pgPointCLoud is an open source PostgreSQL extension for storing point cloud data and use it with PostGIS. It is very easy to use, robust and efficient.
https://github.com/pgpointcloud/pointcloud
https://pgpointcloud.github.io/pointcloud/
There's already ubuntu packages.
LIDAR point cloud are becoming more and more available. Devices are easy to get, not too expensive, and provide very accurate 3D points. pgPointCLoud is an open source PostgreSQL extension for storing point cloud data and use it with PostGIS. It is very easy to use, robust and efficient.