The prior pose is the image’s pose taken from the EXIF data. It can be also modified by flight log.
For drone data this is not very precise (unless it is a RTK drone), and therefore the georeferencing can be moved or not scaled properly.
In that case this prior pose could be used just for the first alignment and then the GCPs are used for proper georeferencing and alignment (as GCPs work also as control points). In this case the prior pose could be different to an actual pose and therefore for second alignment it is set to Unknown. Then only information from GCPs are used to georeference and scale the alignment properly.
May I ask why you didn’t turn off the prior poses as it was recommended to you before (in your previous questions from July)?
I didn’t deactivate it because I still don’t fully understand how the software works.
I georeferenced the first set of nadir photos with my GCPs and exported the registration with all the GCPs.
In a new project, I aligned all my images without using GCPs.
Since the area is small and there is a lot of data overlap, I thought of creating a new project and importing the two components. I tried aligning with prior pose set to yes and no, but the result wasn’t satisfactory.
So, then I tried georeferencing the second set using some of the GCPs, exported it, and re-imported it into the new project, but I still didn’t get a satisfactory result.
Honestly, I don’t fully understand the software, but I love it anyway
Considering that my first project, the nadir one, is the reference, should I merge the other photos separately or import them all into this project and do the alignment, deactivating the prior pose for georeferencing, o wath?
As you have the GCPs there is no need to use Prior poses for the cameras (unless you have RTK drone).
Using the component workflow saves some time.
I aligned all my images without using GCPs. - was this done using the component workflow? Were the images aligned into one component?
What do you consider as not satisfactory results?
After placing GCPs and providing a new alignment, are you checking the errors over GCPs?
If you have the nadir project, you can add the detail images there and provide the alignment. If the images won’t be merged, then add some control point over both components or apply GCP measurements also for detail dataset (with Prior pose set to Unknown).
I tried aligning with prior pose set to yes and no
For prior pose there are no these settings. Did you mean Use camera priors for georeferencing? As those are two different, but similar settings.
Were the datasets captured in different days?
For such capturing you need to follow basic photogrammetric rules, as for such capturing you showed, it should be aligned into one components without any special settings. In the stadium area there should be enough of the features to merge those data together.
Have you tried to align the images like imported all into one project, set Prior pose to Unknown and process? Basically, there is no just one proper workflow for such data. You can get proper results following different workflows… As there are 5 same GCPs, the components should be merged anyway with new alignment. Do have those GCPs same names in both components?
I’ll try with other solutions.
The photos were taken with an RTK drone.
I will try to align the second component, even though it’s already georeferenced, using the GCPs from the first project.
Then I’ll try to import all the photos and process them using only the position.