Settings for recovering low confidence details?

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panoluma

• February 24, 2020 10:42

Hi all,

 

I'm looking for some settings help on a way to get RC to be a bit more forgiving and loose when generating the point cloud and resulting geom & textures.

 

This church is in a remote & hilly area with lots of trees all around (and no drones). I can get a good amount of cameras to align (not all, though), but the point cloud has got a ton of gaps on the roof (understandable). There's not much high ground to get a good angle on the roof, and a zillion branches obscuring certain views.

 

Are there any particular settings I could try to adjust to get RC to create a denser cloud, even if it's not as accurate? I would prefer to have at least something representative of the roof vs giant soft triangles.

 

I tested it with another app which can reconstruct quite a bit more of the roof. Apparently it is willing to use only two cameras, which seems to be the majority of the roof alignment in that app. It's noisy for sure, but I am okay with that in this situation.

 

Thanks for any help!

 

 

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  Jonathan_Tanant

  • February 24, 2020 13:30

  You can always export your 3D mesh, edit in external software to manually/automatically fill your holes and work on topology and reimport in RC to have the fixed model textured. If the alignment is not bad, it should work.

  Something also to take care of is the UV unwrap large triangles removal threshold : if your triangles are blurry, it means that they fall into this category and are only textured on 1 texel (which gives the bluriness). Try to increase this number and redo the unwrap.

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  panoluma

  • February 24, 2020 17:43

  Thanks for the tip about the UV unwrap threshold! I think that, along with a bit of Meshmixer, etc. should be able to get me most of the way there.

  Cheers

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  Erik Kubiňan CR

  • February 25, 2020 13:58

  Please try the following alignment settings in order to raise the density or detail. Please don't understand this as a universal setting. For your case they should be useful.
  

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  panoluma

  • February 27, 2020 09:28

  Thanks for the tip, Erik. I had already tried increasing some of those settings, and achieved similar results. I was going to try adding a few more CPs to help some of the unregistered photos align....but I just got locked out of the file from the 1000 image limit in the Steam version. Argh!

  I am hoping there is a way to edit that file and reduce the number of images. I had 996 that aligned, so I could remove the others.

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  Erik Kubiňan CR

  • February 28, 2020 13:53

  I am afraid this will not be possible unfortunately. 

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