alt Hacker NewsThe USGS Lidar data is a treasure trove, I use it a lot at work.
What did you do to actually count trees? Even from aerial Lidar it can be a bit finicky for closed canopies.
The USGS Lidar data is a treasure trove, I use it a lot at work.
What did you do to actually count trees? Even from aerial Lidar it can be a bit finicky for closed canopies.
It's very rudimentary: smooth the canopy and find the local maxima above a base height. It's really just identifying the tallest points.
Here is the first pass, https://i.imgur.com/f7Gpxmm.png, it under counted and also even counted my house as a tree, lol.