Topic: Correlation Result
Correlation Images have been derived from SPOT-1 (Pre-earthquake) and SPOT-4 (Post earthquake Image) with different Window-Step Size Combination (32-4,32-8,32-16, 64-8 & 64-16). As per my understanding after discarding the SNR value less than 0.9 the best SNR band should be considered as the best result (the respective E-W and N-S band).
1. Actually I have correlated SPOT Panchromatic 10m resolution Images. But I could not figure out which combination (window-step) is providing the most optimal result as I don't have any field observation data yet.
2. Is radiometric correction is necessary before analysis as I am working with images from different sensors!
3. Which one is suitable for profile stacking: correlation image or correlation image derived after discarding and destriping. My correlation images have stripes and I have removed it with the aid of ancillary data of SPOT-1 Image.
Please let me inform whether I am in a right direction or not.