Im looking to create a new video on how to make the best possible ortho image from UAV photogrammetry, In terms of efficiency and quality.
I was hoping to get some input here from this fine community if anyone has any tips and tricks I can add to the list of parameters I am going to test?
I have an idea on what the answer is to most of the following questions but was hoping to get opinions of others, and then do some testing to hopefully get a somewhat definitive answer.
How much motion blur can you have before it affects quality? 2x GSD, 4x GSD?
At what point does shadowing become too significant an issue?
Does more overlap at a higher altitude help with stitching elevated objects such as powerlines and tall buildings?
Does more overlap improve quality? What is the minimum overlap required for a typical (non homogenous) area of interest?
Do obliques images help?
Does creating your DEM from depth makes make a difference?
Are there any processing settings that make a significant difference (blending mode, refine seamlines, hole filling, ghost filtering, ect)?
Can you create an acceptable ortho without any Nadir images?
What effect does changing your f-stop have? What is the best f-stop to use? And in what situation?
How much effect does changing your iso have? Can I get away with iso 200, 400 in low light conditions without significant quality loss?
If you can think of any other questions you'd like an answer to or to have some testing done, please add them here.
