Individual tree characteristics extraction from lidar for mapping aboveground biomass. (a) Sample lidar data point cloud cross section view from a ponderosa pine dominant area (plot boundary shown in cyan) with an isometric plot overview (insert). Ground points are shown in blue, and vegetation points are shown in rainbow color with red representing the tree tops. (b) Lidar point cloud data extracted tree tops (red) and field collected GPS points (yellow) at the crown edge, overlaid on the natural color WorldView-2 imagery acquired on July 29th, 2013.
Courtesy: Zhuoting Wu