Reprojection Error RMS

[last6]

Hi,
I’m new to photogrammetry and looking for a little advice please.
Does anyone know how to get the Reprojection Error RMS below 1? I’ve processed multiple ortho and 3d maps and all come back with a Reprojection Error RMS of over 1. My Georeferencing RMSE is 0.01 consistently.
Flight missions are carried out through DJI Pilot 2 and missions are processed through DJI Terra. Is there something I could be doing wrong when setting up the processing?
Thanks

 

[chris-quadwinds]

New here too.

Checking a report on an ortho model I ran, mine reports an RMS of 0.871 px and an RMSE of 1.193 m. I am not using RTK base station for the mapping.

I ran the mission in Pilot 2 on the ALT setting, which caused other problems so I'll be re-running the mission using AGL with the elevation file loaded (The property had a tree covered hill on one border which resulted in about half the images being discarded during rendering).

I had an 80% overlap, auto focus settings.

The only DJI Terra parameter I tinkered with was the Distance to ground setting which defaults to 100m. For my mission I upped that to 150 (naively hoping I would correct for using ALT mode.. it did not). Maybe try altering that based on your flight elevation?

I experimented with lowering and raising that value. Lowering caused more images to be discarded, 100m and up kept the same amount of images, discarding the ones where the drone was too low above the hilly side of the property.

 

[last6]

Thanks.
I will try that. Will also try autofocus instead of Manual.

 

[jaja6009]

New here too.

Checking a report on an ortho model I ran, mine reports an RMS of 0.871 px and an RMSE of 1.193 m. I am not using RTK base station for the mapping.

I ran the mission in Pilot 2 on the ALT setting, which caused other problems so I'll be re-running the mission using AGL with the elevation file loaded (The property had a tree covered hill on one border which resulted in about half the images being discarded during rendering).

I had an 80% overlap, auto focus settings.

The only DJI Terra parameter I tinkered with was the Distance to ground setting which defaults to 100m. For my mission I upped that to 150 (naively hoping I would correct for using ALT mode.. it did not). Maybe try altering that based on your flight elevation?

I experimented with lowering and raising that value. Lowering caused more images to be discarded, 100m and up kept the same amount of images, discarding the ones where the drone was too low above the hilly side of the property.

Did you have Control Points laid and used as check points?