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DAVID-Laserscanner Forum • View topic - Tips for Working with Shapefusion
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Tips for Working with Shapefusion

The place for all topics related to the 'Shapefusion' tool of DAVID.

Tips for Working with Shapefusion

Postby eliscio » Mon Aug 31, 2009 3:41 am

Hello All,

I recently scaled up my calibration grid so now I can scan larger objects about 0.5m^2 (more or less). I did this torso and cranked up the smoothness settings. Overall, the individual scans were pretty good, but when I fused them together, I always get "bumps" or lines where the scans meet.

Do you have any tips on how to really get a clean, fused scan?

Attached is an image of a mannequin that I scanned earlier today and you'll see the lines on the body.

Thanks

Eugene
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Postby hal » Mon Aug 31, 2009 9:00 am

Hello Eugene,

from my experience with Shapefusion, these junction lines and bumps appears only in two matched cases: when the borders of the scans aren't perfectly complanar (not a perfectly aligned) and with too much high value of Fusion parameter. In this case seems that ShapeFusion interpret the irregular borders of every single scans as a detail, so it preserve these errors like a real detail of the object.
If the alignment is perfect and there aren't gaps or crossing surfaces between a scan and others, with the right value of fusion, in relation of the scans trinagle density, all goes fine.

Do you have cleaned the borders of every single scans before to fuse? It can help...
Bye,
Mattia
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Re: Tips for Working with Shapefusion

Postby eliscio » Mon Aug 31, 2009 1:45 pm

Salve Mattia,

Well, this is what I was thinking...if I go back and delete the borders of each individual scan, then they might fuse a bit better. When I tested this, I think it definitely helps. There are a combination of things I need to improve in my scan though because I am still using a red (cheap) laser. I actually pulled it out of the level and mounted it in a hand held flashlight. I think it works better this way.

So, the higher the Fuse parameter, the higher the level of detail?
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Re: Tips for Working with Shapefusion

Postby hal » Mon Aug 31, 2009 2:02 pm

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Re: Tips for Working with Shapefusion

Postby Francois » Wed Mar 31, 2010 4:47 pm

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Re: Tips for Working with Shapefusion

Postby Simon » Mon Apr 05, 2010 2:11 pm

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