Hi @OndrejTrhan !
Thanks for the really interesting workflow you presented.
I’m looking forward to the same information as @Tecnoart2022. I try to use really dense laser scans to scan interiors and exteriors of small buildings + drone images for the roofing and surrounding environment that I can’t scan with laser scanners, in order to have a complete point cloud.
There are some overlapping between laser scan data and photogrammetry data (for example on the exteriors and walls). I use exact positioning for the laser scans for the alignment (laser scans are assembled before with another workflow).
It looks like that I have good component with all the data from the lasers scans and drone images.
When I generate the mesh, it seems like some laser scanned parts try to blend with photo generated parts (for example with thin roofing). It looks like that tweaking the default grouping factor may help there, but there are very little information available about the Default grouping factor parameter influence aside from your posts.
On the How to give more priority to laser scans in reconstruction subject you suggest to “set lower value for Default grouping factor in the Reconstruction Advanced Settings” to solve the issue.
The RC Help however states that “when both images and laser scans are being used to mesh, increasing this value will mean the laser scans will be prioritized for meshing” and in the How to give more priority to laser scans in reconstruction subject you say that “When you want to decline the influence of the images on some parts of the model, then you will set higher value there”.
So I guess that setting a low value would tend to decline the influence of the laser scans on some part of the model ?
I try to decline (suppress) the influence of the images on parts where I have laser scan data.
So what may be a good value to give the highest priority to the scan mesh but to get a good mesh in the parts where there are only photos ?
Would a good low value be 0 ? 0,0001 ? 0,5 ? Same with high values : 10 ? 1000 ? 999999 ?
I would do some experiments but would love to have your feedback on this subject.
NB :
I exported my laser scans separately depending on whether they were interiors or exteriors scans to tweak the weights in texturing parameters (exteriors scans photos may be burned, but i need interior scans imagesfor texturing). Can this be helpful for mesh generation ?