About scanning a bust with a turntable and a rotating camera.
Hi everyone !
The purpose is to scan a bust.
I built a photobooth (90 x 90 x 40 cm).
The bust is fixed horizontally to the turntable with magnets.
The turntable can rotate 360°.
The camera is fixed (vertical rotation enabled) on a railway wagon that turns around the bust (180°).
I put posters on the 4 walls of the photobooth.
I'm getting 271 photos.
The result is awful and I can't explain why. As it can be stated the software also tries to scan one of the walls.
Any help please.
Thanks a lot !
Here attached a few pictures to explain the worflow and show the result. I already give one photo among the 271 ones.
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1) try to fill the picture more with the object, you are covering more background instead of the object itself
2) hide the hole background, try to make it black or green, the color doesnt matter, the software detects to many features i think.
i think the biggest problem here is the background, on each cycle the background is more prominent than the objeckt. try to hide it with back fabric, so there are no features to detect for the software.
Edit: i tried also a turntable setup one time, had the same issue, so the only problem was the background, i coverd it all with white fabric, so the software only "sees" the object, not any detail of the background.
I like your "truntable" like setup very much, well done
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By the looks you do not adjust the reconstruction region to only cover the area of interest before you start the reconstruction. My advice is to do that after alignment.
That way the back wall becomes a non-issue as any features detected there are discarded.
Also, the statue or bust itself is pretty much featureless which can cause problems in itself.
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you are right the software needs a backround, but you make one mistake here, you have to rotate the hole background with your object. :)
so far i have understood, you make a pass with your cam on your lego train, then you rotate your object. in the next pass you are capturing the rotated object, but the feature rich background is at each pass the same, thats the problem.
Did you try to import only one pass of images, without rotating the object? i think then the images should align correctly.
And the software needs features to detect, the software makes no decision what is a background or an object you want to capture. So no background, no features, no problems :)
Also try this settings: https://support.capturingreality.com/hc/en-us/community/posts/115000773791/comments/115000547791
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https://support.capturingreality.com/hc/en-us/community/posts/115000777351-Masking-
They wrote:
"To explain the masking in RealityCapture - even we do not have a tool for editing masks build in our app, the app itself supports masks to some extent. For alignment step all you need to do is to modify image color channel and paint it with a solid color. This will cause that natural features will not be detected there and thus will not influence camera alignment. For meshing we support alpha-channel masks. Adding alpha channel and masking only important parts actually speeds up whole computation. Another benefit is that you would not need to use reconstruction region to filter parts which are not important."So just fill the background with a black color. As i mentioned before, its the same like taking the photos on a solid colored background.
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I think you are almost done. I think the last problem is, you have a very featureless object. Try to raise the alignment settings like in this post:
https://support.capturingreality.com/hc/en-us/community/posts/115001363732-Align-setting
Also consider to use Markes placed onto the rotating part of your construction like:
Also try to use the forum search here, it helped me a lot when i having any problems with RC. There are many posts like yours.
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