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DAVID-Laserscanner Forum • View topic - what are those number on calibration panel ?
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what are those number on calibration panel ?

The place for questions, problems, comments and tips regarding the camera calibration.

what are those number on calibration panel ?

Postby bipbay » Tue Nov 11, 2014 8:50 am

Hello guys , are those number going to effect the scan output ?
thx
Attachments
QQ截图20141111102132.png
bipbay
 
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Re: what are those number on calibration panel ?

Postby JDM Dyno » Tue Nov 11, 2014 11:27 am

that the angle camera to projector and calibration panel. I would have a bigger angle than 10 - 12 I use 20 - 30°, I set the camera angle on my camera mount here viewtopic.php?f=7&t=6258 makes it easier to set up :-)
Camera's: 2 x DFK 42BUC03 Duel Camera,
c615 modified with Computar megapixel lens
lenses: 2 x Pentax 12mm, 2 x Computar 8mm
Optoma ML300 Projector
Turntable

www.jdm-dyno.co.uk
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Re: what are those number on calibration panel ?

Postby bipbay » Tue Nov 11, 2014 12:07 pm

Thanks man !!!!
but is that going to effect the out put of the scan ? or as long as calibration is done we're good to go ?
I also found out the size is a bite off on the out out, I was scanning a square hole , it was a prefect 20cm x 20 cm , but the north-south side output was 2mm less and the east west was prefect do you have any idea ?
bipbay
 
Posts: 16
Joined: Sat Sep 13, 2014 5:59 pm

Re: what are those number on calibration panel ?

Postby JDM Dyno » Tue Nov 11, 2014 3:56 pm

try a bigger angle 22°is what David say
david sls2.jpg


go to WIKI and download the manual for sls 2 kit for more info

as I see it a steep angle like 10°will not give best results over a distance but will give better depth to scan.

also check calibration panel is true 90°and panels are perfectly flat.
Camera's: 2 x DFK 42BUC03 Duel Camera,
c615 modified with Computar megapixel lens
lenses: 2 x Pentax 12mm, 2 x Computar 8mm
Optoma ML300 Projector
Turntable

www.jdm-dyno.co.uk
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JDM Dyno
 
Posts: 185
Joined: Sat May 10, 2014 9:32 pm
Location: England

Re: what are those number on calibration panel ?

Postby bipbay » Sat Nov 15, 2014 5:09 am

Hey JDM

Is the number bigger the better ? Or as close as 22 is ideal ?

Thanks
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Re: what are those number on calibration panel ?

Postby JDM Dyno » Sat Nov 15, 2014 10:05 am

Hi
as it says in the above manual screen shot
tip.jpg


I use 25 to 35 max, guess it depends on what your scanning but 22+ tends to work better for me, if you have more depth to the object 22 should work well if its flatter then 30+ may help,

not really bigger the better tho,
Camera's: 2 x DFK 42BUC03 Duel Camera,
c615 modified with Computar megapixel lens
lenses: 2 x Pentax 12mm, 2 x Computar 8mm
Optoma ML300 Projector
Turntable

www.jdm-dyno.co.uk
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JDM Dyno
 
Posts: 185
Joined: Sat May 10, 2014 9:32 pm
Location: England


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