We’re working through getting band alignment working on DJI Mavic 3M datasets. Thanks to different hardware / firmware, etc., we cannot necessarily know the changes in tagging between versions, and the tagging is critical for getting the correction parameters for aligning the bands.
So: if you have a DJI Mavic 3M dataset or a few to share, please reach out, either in this thread of in DM if it’s more sensitive. The results so far are promising:
Hi, I have a M3M and have done a few orthos now if you want me to send one
Yes please: raw data (jpgs and tiffs) please.
Ok how should I send them to you?
If you can share them on a public google drive, dropbox, or onedrive link (just for a few days) that’s usually easiest. If you can’t share publicly, let us know and one of us can figure out another mechanism.
Righto, I’ll sort something out and DM you the link
Couldn’t see a way to privately message but I can share here anyway. I’ll leave the files up for a week.
Link - Proton Drive
password - webodm
It’s about 30GB and it’s still caching up to the Proton Drive so give it a few hours before trying to download it.
Hope it helps!
I have an M3M and a sentera calibration panel. The sentera panel light reflectance is Blue 475nm .1116 Green 550nm .1099 Red 670nm .1079 Red Edge 715nm .1071 and Near Infared 840nm .1050
The dataset was flown at low height and is mainly flat, with the exception of our tractors on the west side. Google Drive Link to dataset:
https://drive.google.com/drive/folders/1Psq-s0R_uLShcS3rDrczPUbK4iLbyB5L?usp=drive_link
If you are interested in doing any work with calibration panels I would be more than willing to share additional datasets of the same area on different days, time and weather conditions.
Welcome!
That is an amazing offer, which we may well take you up on in some time.
It would certainly help folks out to have better support for those targets.
Awesome. No current plans on the panels, but that will be useful to have eventually for sure.
Downloading all. Thank you!
Awesome! Downloading now. Thank you!
I’m struggling to get the full 30GB to download. Is there a logical subset you could post?
Oh ok, let me try tomorrow to upload it in 5 parts, one per camera and you can try again.
Thanks!
Sorry a bit late, password is webodm again
Green - Proton Drive
NIR - Proton Drive
Seems as though it flagged my 6 links as spam and won’t let me post more than 2 links. Sorry, maybe I can DM them…if I can work out how
Red - Proton Drive
Red Edge - Proton Drive
RGB - Proton Drive
Extras - Proton Drive
Welcome!
Thanks for helping us out with data!
Do you have an idea of how you’d like to contribute the dataset for testing, in terms of licensing?
Many folks go with a Creative Commons license, I use the UnLicense 
Hi @DroneScout – really appreciated these shares. Unfortunately, internet speeds killed me on downloads. But if you are running on docker and update, you should be able to process MS only bands and get better alignment now:
If you’re running Windows or Mac, let me know, and I’ll send you a link and login information to do the processing on one of my updated nodes.
Thanks!
@John_Hadish – same as for DroneScout – if you run docker version, run an update and test when you get a chance, and if not, I can give you access to a node to log into and test process.
