If you have a drone mapping business, you need to know what a point cloud is, so you don’t sound like an idiot in front of the client. We could say that point cloud is a set of data points in some coordinate system. These points can usaully be defined as X, Y, and Z coordinates, and often are intended to represent the external surface of an object. Picture that is taken from a drone is made up of millions of pixel points. Every point carries data with longitude, latitude and altitude coordinates. Basically that means a geotag is assigned to a pixel. We call that pixel Anchor Point (picture below), and all the pixels around the Anchor Point will then be assigned a GPS location based off of their relative proximity to the Anchor Point. And because the points are relatively accurate, you need RTK GPS to give you a precise point.