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DinhHoTongMinh / TomoSAR

Open-source TomoSAR package for PSDSInSAR and ComSAR algorithms
Apache License 2.0
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Question about SHPs calculation #10

Open esrivas17 opened 2 months ago

esrivas17 commented 2 months ago

Hi, I am trying to understand the SHPs calculation implementation. I have a simple question about SHP_SelPoint.m It seems that you take the SHPs from a pixel only if these are connected to the pixel coordinate within the search window. (lines 64-65) % connection component LL = bwlabel(SeedPoint); SHP.PixelInd(:,num)=LL(:)==LL(InitRow,InitCol);

I wonder, why don't take all the pixels within the search window who pass the statistical test as SHPs, regardless if these are not connected spatially to the pixel?

Thanks a lot for your answer, Erik

kjz1997 commented 1 month ago

Hello, I think the reason for doing this is because in the real world, adjacent pixels have more similarity in physical representation, and in SAR images, because the resolution is mostly a few meters or more, non adjacent pixels may have sudden changes in physical representation. This is my own understanding. If there is anything inappropriate, please forgive me