Im not sure what Im asking is even possible, only just supported the community through the webODM option and attempted something perhaps not straightforward or normal so fully appreciate help may be difficult to come by.
I have a ROV running lines like a drone at 5m altitude with still images of the seafloor and maybe 60% overlap alongtrack. Ideally I was looking to mosaic to create a larger tiff but have been amazed with the photgaramtery outputs which are great and got more than I expected when conditions are good. When going over some shipwrecks etc and in very clear water the results are so much better than I expected, the 3d reconstruction actually very accurate. Sadly the bulk of the seafloor is nondescript so obviously struggles to stitch.
The thing is I have very good positioning (NO EXIF data), not RTK but close over so I wrote a quick script to create a “geo.txt” file and after some teething problems this is now read and I hope used, certainly I cant see errors and tiffs now appear in the correct place. Unfortunately the bulk of the vehicle track does no get generated.
I have not included Omega, Phi and Kappa values although could if I believe this would benefit me by essentially laying the images done without a match. May take e a minute to work out how to calculate them so wonder if its got a chance of working,
If I include these and when working in areas with bad visibility or no targets (a lot of the seafloor looks identical) will the software trust the geo.txt file enough to just lay the files on top of each other without matches?
As the conditions are bad I dont expect the system to be capable of mosaicking simply georeferencing, or is this something thats not possible?
Thanks for any advice,