Point Cloud by Drone Survey
Point clouds are a collection of points that represent a 3D shape or feature. Each point has its own set of X, Y and Z coordinates and in some cases additional attributes. We can think about a point cloud as a collection of multiple points, however, that would be oversimplifying things. Surprisingly, when many points are brought together they start to show some interesting qualities of the feature that they represent.
Point clouds are most often created by methods used in photogrammetry or remote sensing. Photogrammetry uses photographs to survey and measure an area or object. A combination of photographs taken at many angles can be used to create point clouds. Remote sensing is a way of collecting data of the Earth by use of satellites or aircrafts or drones.