Hello Götz,
I agree with you about the orange lines (residuals?) because on the last projects it was different. Do you have tips to improve it?
I used a DJI Mavic Pro in front of the cathedral and a Canon 5D on the floor. Here’s another image with the LiDAR positions :
Thanks about the depth maps infos, otherwise I think we can easily find photogrammetry tutorials and infos about the steps, tips/tricks and more. But I would like to learn more about depth maps calculation (focus infos, pixel colors, etc.) I read a lot PDF, tutorials etc. and I can’t find more details about it, do you have more infos about that?
And how do you texture an imported mesh? I never tried it this way, I always align my datas (LiDAR and Photos) set the mesh disable for the photos, simplify and texture it. Sometimes I combine both for the mesh reconstruction, because of the highest parts (cathedral, buildings…) but it’s not easy because photogrammetry gives me artefacts on LiDAR areas. That was another problem on this project.
For small objects, a good photogrammetry workflow is nice, sure! But I definitively prefer LiDAR for large places to capture details. It’s a little bit longer but so nice. Less noise on surfaces and real measures.
I’m a beginner on photogrammetry, I need to learn more…
I used a Faro Focus S150. I would give you the exact resolution but here is the overview map, medium quality, 360 deg on nearest positions, medium quality at mid-distance but 120 deg in front of the cathedral and high quality for the two farest at 120 deg.
Top overview :
Thanks!