Hi, I am working on Geomorphological maps made by deep learning methods, especially U-NET architecture. The issue is that there is a diffusion problem in the aggregated landforms. For example, in the observed map, we have all landforms in the right geographical position but after using deep learning methods, especially CNN U-NET architecture the predicted map is diffused some of the landforms are observed very large and some disappear from the predicted map.
As I used DEM and a relief map for it.
So How to encounter this issue?
Q.1 Should I use U-NET architecture with multi channels as in my case the U-NET used just only 1 channel?
Q.2. Should I increase the training samples?
Q.3. Should I use a Remote sensing Image with DEM?
What should be done about this issue?