I have a DSM done trough photogrammetry with the software Agisoft Photoscan of a forestry experiment and I need to accomplish an analysis of the mean height from it. My problem is that the profile has a slope and I need a flat surface for the calculations.
This is the exact profile:
I have tried with the Trend tool of ArcGIS but it doesn't work well, still appearing differences. The calculation needs to be very precise because the heights are between 0 to 2.7 meters.
This is one of the results with the Trend tool, and the slope is still appearing. The surface is higher in the top than in the bottom and that doesn't make sense.
Anyone have experience with this?