Fig. 8
From: Generalized 3D fragmentation index derived from lidar point clouds
Index intermediate values. Average values of intermediate 3D rasters of number of points per cell n (blue), P f (red), P f f (green) in zones 1 (left) and 3 (right) from Fig. 5. The values are averages of all cells for each depth in the given 3D raster and the x-axis shows height in meters. The graph shows correlation of the variables (P f and P f f are derived from presence and absence of the points), but it also shows how the ratio of P f and P f f changes for each height and zone. This indicates potential changes in the vegetation structure not captured by number of points alone. The values of P f and P f f are between 0 and 1 while the small average values for n are caused by large number of cells without any points