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Getting very much noise every scan... HELP

Questions, problems, comments and tips regarding the 3d scanning process.

Getting very much noise every scan... HELP

Postby M&A » Wed Nov 24, 2010 11:03 am


I have a problem with the 3D-scanning...
Every time I try to scan an object, the object turns out ok, but there is way to much dirt around it!! its like the laser catches invisible dirt. :?
please help


I have got a 5mW red laser
logitec 9000 webcam
processor 2.10GHz, 2,00GB RAM
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Re: Getting very much noise every scan... HELP

Postby milz » Wed Nov 24, 2010 11:48 am


try to reduce gain and exposure that your scan image looks somethink like this ... _small.jpg

mfg milz
Xeon x5650@4ghz
Cam : USB2 CCD 1024x768 / USB3 1280x900
Laser : LC532-5-3-F(16x65) Focusable Green
Projector Acer X110P / Acer K132
dControl one David control box + Turntable + automatic texture lights
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Re: Getting very much noise every scan... HELP

Postby WalterMo » Wed Nov 24, 2010 11:57 am

Additionally to milz's advice:

It's difficult to say why.
Please post an image of the scan situation. Means exactly the same settings which you have used during scanning:
Laserline on object and background walls at darkness.

P.S. Some of the green lines at the dots seem to be a bit too long. Their length and direction is an indicator for an imperfect calibration corner. This could be because the calibration sheets are not precisely glued on and/or the 90° corner has a deviation.
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