3D scanning with structured light

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henrique_mg
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Joined: Sat Jul 13, 2019 5:10 pm

3D scanning with structured light

Post by henrique_mg » Thu Mar 19, 2020 6:29 pm

how to develop a structured light 3d scanner with stereo pi? see reference link https://github.com/theICTlab/3DUNDERWORLD-SLS-GPU_CPU
https://www.instructables.com/id/Struct ... -Scanning/
If someone suber as warn

stereomaton
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Re: 3D scanning with structured light

Post by stereomaton » Fri Mar 20, 2020 8:55 am

It looks like the OpenCV library has a module to deal with this: https://docs.opencv.org/master/d3/d81/t ... light.html

I do not know how to use it in practice, but it is probably a good starting point. Perhaps is there software or high level libraries built on top of this library.

As you probably know, Realizator created an OpenCV image you can use to quickly start with it, although I do not know which modules he compiled in.
Stereophotographer and hacker
Despite my quite active participation in the forum, I am not in the StereoPi team
StereoPi Standard Edition + CM3Lite module

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Realizator
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Re: 3D scanning with structured light

Post by Realizator » Sat Mar 21, 2020 12:49 pm

As I see, StereoPi can act as a frames grubber for the post-processing, or can be used for calculating 3D scene.
I also noticed, that actually described solution uses 1 camera and a projector. You can update it for using 2 cameras, but it will need more math and coding.
Stereomaton provided a link to the OpenCV tutorial. Looks like current tutorial is not user-friendly (and requires some advanced understanding of the process). If anyone will find more detailed guide - please share it here.
Eugene a.k.a. Realizator

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