05-11-2018 08:16 AM
I have a old historical aerial photo that I worked on and using an AutoSync. What is funny is that when I use the control points on them.
When I ran Resample to check if it is overlay with the reference image and it is overlay correct. But the Problem is the RMSE is high..
I am speechless here but I want to share with this you all .. The total Points is 51 The RMSE is 90.51
Before I resample the image, The Project Properites are as follow as :
Any suggest what might go wrong here ?
Solved! Go to Solution.
05-14-2018 12:54 AM
Your terrain looks rugged - most likely you see a effct on height differences in RMSE. Try chaning geometric correction method to something more advanced. The best for this case is probably DLT (Direct Linear Transformation) that estimates sensor a bit and uses terrain to compensate height differences. Just increasing polynomial order does not work. It only adds weird twisting in data.