I am assessing subsidence process in a region at Brazilian Northeast using Alos PALSAR (six interferometric pairs).
I followed all steps according to this tutorial:
Evaluating the Phase Unwrapping generated by Snaphu (after a long time to processing), I think there is something wrong:
1) The most of pixel values are incoherent, I think... (see histograms);
2) The presence these patterns of gradients in the images;
With these pixel values, the results of Vertical Displacements are inconsistent!
Someone can help me?