Has anyone had any success utilizing the coherence bands between two pairs of SLCs for change detection?
I am curious of the validity of comparing coherence bands to estimate disaster damage and processes that inSAR has a more time detecting such as coastal change and erosion.
For something like earthquake damage in urban areas, I was thinking that I would require three SLCs: two before the event and one after.
SLC1 and SLC2 would be used for a baseline coherence estimation before the event. SLC2 and SLC3 would be used for a second coherence estimation encompassing the event. Theoretically if there is significant damage, there would be a noticable decrease in the second coherence band? I suppose an NDVI map could also be used to mask out vegetated areas to help ensure that the temporal decorrelation is primarily as a result of building collapse.