Advanced Deep Learning with Python

Introduction to 3D data processing

The lidar produces a point cloud—a set of data points in a three-dimensional space. Remember that the lidar emits laser beams. A beam reflecting off of a surface and returning to the receiver generates a single data point of the point cloud. If we assume that the lidar device is the center of the coordinate system and each laser beam is a vector, then a point is defined by the vector's direction and magnitude. Therefore, the point cloud is an unordered set of vectors. Alternatively, we can define the points by their Cartesian coordinates in space, as illustrated in the left side of the following diagram. ...