Cross polarized light Scanner Build + Results

[Mark Florquin]

Hello

I'm constantly scanning, learning and improving Photogrammetry setups. I'm using SLR's for years now, and still enjoy their high quality results, in conjunction with Agisoft. Of course

My current 3D scanning setup does cross polarized and regular light texture capture simultaneously. And motion capture.

[Arie]

Hi Mark,
could you elaborate a little on the combination of cross-polarized lighting setup?
Are you using this method to minimize highlights for capturing a cleaner geometry?

Your setup looks quite impressive.
Cheers!

[Mark Florquin]

Hi Arie,

Thanks for the compliment. I have a lot of fun designing these kind of fine tuned setups.

Cross Polarization is used to reduce reflections in skin and clothing, leather for example. I plug polarized textures in the diffuse channel for render and gaming shaders. I also have some cameras without circular polarizers that let all lightwaves through, apart from those filtered by the filters on the lights, of course.. Those are used for specular reference and 3D printing purposes.

I'm using 1.8m softboxes as lighting and large pola filter sheets.

[bisdag]

Hey Mark,

Quite a scary rig you got there!
I was just wonering if you're still using turntables or is it a 360° setup... and if it's turntable based, how many shots are you taking per rotation?

Thanks for sharing with us!
All the best!

[Mark Florquin]

Hi Bisdag,

Good you ask. I'm wondering if it's possible to use cross polarized light in a 360° setup. Would love to find out one day!