This year I attended an ESRI-led session at the User Conference on LiDAR and GIS and noted the recommendation to use Triangulation-->Natural Neighbor interpolation as the preferred method to convert LAS ground points to raster. So we switched up our workflow, which involves converting LAS datasets to various raster products.
We're running into an issue though: there are linear artifacts resulting from using Natural Neighbor interpolation. They are totally unrelated to the LAS tiling scheme or Lidar ground point elevation and show up in areas where dense vegetation results in more sparse ground point distribution. (See attachments--showing hillshade and Lidar ground points)
We can switch to a more complicated workflow involving creating a Terrain from the lidar points and then converting that to a raster, but it would be great to be able to get an accurate surface using the LAS Dataset-->Raster tool. Does anyone have experience/recommendations relating to this process?
Thank you!
