mismatching the components

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Niels van der Eb

• May 13, 2018 21:37

 Hi there,

 

I seem to be at a loss. one of my models is not aligning reconstructing as expected.

THe model is a boy and is not to tall. His sisters scanned just fine in the same scan booth.

tried to use the xmp of the other scan but it always mismatches the components.

Also used the 80k settings, but no luck.

 

what other settings can I try?

 

br Niels

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  Lucia CR

  • May 14, 2018 09:59

  hello, can we have a look at some photographs used for this model?

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  Niels van der Eb

  • May 14, 2018 13:18

  https://www.dropbox.com/sh/cdcyb23xg5l60ha/AABLnZGAQj7tAAevPcAzLWOHa?dl=0 

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  Lucia CR

  • May 14, 2018 13:57

  what alignment and reconstruction mode and settings did you use?

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  Niels van der Eb

  • May 14, 2018 20:24

  

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  Niels van der Eb

  • May 14, 2018 20:25

  

   

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  Niels van der Eb

  • May 14, 2018 20:37

  Hi Lucia,

  to be quite honest, I used multiple allignment and reconstruction settings. I also tried far higher numbers and it seemed to give better results. But when the reconstruction was done the result was still bad.

  But if I look at the camera places it seems like they are oriented perfectly. Could it be the striped sweater that looks to much the same in front and back?

   

   

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  ShadowTail

  • May 15, 2018 08:12

  A few things I noticed:

  • The cameras are too far from the object of interest and thus capture mostly the background. The object of interest should ideally cover at least 60% if not more of the image.
  • You should try and put either white or black cloth or plates around your camera rig to eliminate the background and sort of force RC to detect more features within the area of interest.
  • If feasible, use projectors to project random patterns onto the object of interest. Take two sets of photos. one with projected pattern for alignment, one without for texturing. Your camera modules may or may not be up to that task.
  • Your cameras have a relatively low resolution (5 MPx) and they also seem to generate quite a bit of noise, which won't let you capture the level of detail you probably want.

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  Lucia CR

  • May 15, 2018 14:17

  I think the resolution and noise are the biggest culprits here

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