Office photogrammetry usecase problems

Answered

Henri_arforia

• June 08, 2016 10:55

Hi,

Ive been using Capturing reality with great outcome recently.

I wanted to do a reconstruction of an office meeting room for a client recently and i was unable to obtain good results. I know that plain white walls and plastic tables are not good for photogrammetry but i didnt expect to have such poor results... (see attached file) I took 200 photos of this small space. Even the plastic white chair dont reconstruct properly.

Is there best practices for plain white wall reconstruction and plain objects ? (i know as a last resort I could print some markers and put them on the walls but thats very long and that needs post work too...)

Would that problems be solved if i had several scans of that same space ?

And lastly how can I reset all my settings to the default ones ?

Thanks a lot.

• 366_E5A6002.jpghttps://www.capturingreality.com/forum/download/file.php?id=3662097281imageFile jpg
  _E5A6002.jpg
• 367ContactSheet-001.jpghttps://www.capturingreality.com/forum/download/file.php?id=3672097281imageFile jpg
  ContactSheet-001.jpg
• 368CR_01.jpghttps://www.capturingreality.com/forum/download/file.php?id=3682097281imageFile jpg
  CR_01.jpg

• 

  Henri_arforia

  • June 09, 2016 14:22

  Please help !
• 

  chris

  • June 10, 2016 01:00

  looks like a hard scene.
  
  i would try processing photos differently. you may need to try a few different things.
  
  i guess you would need to try and get as much texture/variation on the white chairs.
  
  though i would probably have a go at very flat photos, then adding a mirco contrast like clarity in lightroom.
  
  or going higher contrast photos, though you don't really want to blow out any the highlights.
  
  I think it will require experimentation
• 

  Wishgranter

  • June 10, 2016 08:12

  Hi henri
  Can you send me the original RAW files used for reconstruction ? As has Chris mentioned, white "featureless" subject are problematic to reconstruct in general... So it needs a proper planning on data capture...
• 

  Raghav

  • June 11, 2016 10:49

  Hi wishgranter,
  Could you suggest how to go about shooting in such difficult situations? Thanks
  

  Wishgranter wrote:

  Hi henri
  
  Can you send me the original RAW files used for reconstruction ? as Chris mentioned white "featureless" subject are problematic to reconstruct in general... So it need a proper planning on data capture...

• 

  Wishgranter

  • June 11, 2016 11:20

  Hi raghav
  Properly shot for photogrammetry, LOT of overlap, alternatively shoot with some projections for the walls. But remember photogrammetry has some limitations and white/dark, featureless stuff is always a problem... The best solution is to have this laser-scanned and use images for texturing only...
• 

  Lucia CR

  • June 13, 2016 11:06

  henri wrote:

  ... how can I reset all my settings to the default ones ?

  
  User Preferences
• 

  Barbara

  • July 05, 2017 05:54

  Hi, I just love the way you decor the home office. I will surely follow it. I have just shifted to Sydney, Australia and looking to buy furniture and lighting for home office like desk and chairs. Thanks for images for taking idea!
• 

  MikeS11

  • July 05, 2017 19:59

  Wishgranter wrote:

  Hi raghav
  Properly shot for photogrammetry, LOT of overlap, alternatively shoot with some projections for the walls. But remember photogrammetry has some limitations and white/dark, featureless stuff is always a problem... The best solution is to have this laser-scanned and use images for texturing only...

  
  
  Hi, I was wondering what affordable scanner would you recommend for an enthusiast who wants to recreate personal cottages or homes?
  
  I am currently on a monthly subscription through steam but would like to see how I could use laser scanning for interiors.
  
  I mean I could redo everything in blender or modo and retexture the images.. But was hoping to understand a good laser solution.
  
  Thx!
• 

  Götz Echtenacher

  • July 07, 2017 12:03

  Just my 10 cents:
  
  For the way the images are taken (more or less all in one plane above the ground = chin height) I think that the result is not bad at all! Especially since the colours are a nightmare (black AND shiny table)!
  So I think you can be pleased with what you accomplished in the first go.
  
  
  PS There is no magic button! :D

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