Question: what is the difference between 2d and 3d lidar?
Answer: For a 2D LiDAR only one laser beam is necessary. Indeed, it will pulse based on a spin movement and collect horizontal distance to the targets to get data on X and Y axes. For a 3D LiDAR, the idea is the same, but several laser beams spread out on the vertical axe are shot to get data on X, Y and Z axes.