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DAVID-Laserscanner Forum • View topic - SL Pattern Maker
Dear DAVID Community,

As you are probably aware, the entire DAVID company, team and product range has been integrated into HP Inc.
This forum is now read-only. Relevant content has been migrated to HP and merged into HP's Support Forums on November 1, 2016.

To start new discussions for 3D Scanning, please register and post your new topic at the HP Support Forums

SL Pattern Maker

Problems, solutions and discussion about scanning with a video projector and stripe patterns.

SL Pattern Maker

Postby Sven » Tue Aug 17, 2010 12:27 pm

Hello,

I have made a small program that can create the 12 Structured Light patterns in any resolution. It creates the same patterns as the "Pattern Projection Form" in DAVID, but it saves them to image files.

Download: http://www.david-laserscanner.com/freew ... nMaker.zip
(If it does not work, put it into your DAVID application folder and launch it there.)

SLPatternMaker.png
SLPatternMaker.png (15.18 KiB) Viewed 5896 times

Simply enter the width and height in pixel, then click Save. The program will add "_01" to "_12" to the file name you enter. It can save bmp or png.
The number of patterns is always 12, because at this time DAVID does not work with any other number.

Hope this helps. :)

Sven
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Re: SL Pattern Maker

Postby peiwei69 » Tue Aug 17, 2010 12:52 pm

hey Sven,

thank you very much!
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Re: SL Pattern Maker

Postby Strob » Tue Aug 17, 2010 5:26 pm

cool! thanks!

I'm using a wonderful free app called djv_view to flip the pattern in full screen, but it does not seem to be able to load the bmp format created by your app...

http://djv.sourceforge.net/
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Re: SL Pattern Maker

Postby Sven » Fri Aug 20, 2010 3:22 pm

Hmmm strange. The BMP files are written by the .net framework, I can only assume that they meet the standards.
The "SL Pattern Maker" can also export to PNG. Can djv_view import the PNG files?
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Re: SL Pattern Maker

Postby edudg » Fri Oct 22, 2010 7:35 am

If the structured light pattern is constant...
Why to use a expensive projector.
Why not better use a home made projector with just a slide with the pattern.
I think you can save some hundred dollars this way.

http://blog.makezine.com/archive/2006/0 ... rojec.html

http://www.youtube.com/watch?v=6-MnUGVrbTw
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Re: SL Pattern Maker

Postby Strob » Sat Nov 06, 2010 2:27 pm

because the advantage of using the patterns is that you can scan very fast compared to laser but the projector has to switch the pattern very fast. It's required to ba able to scan a person.
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Re: SL Pattern Maker

Postby cooltech » Tue Dec 14, 2010 8:13 pm

If you could use a 35mm there is no reason not to take photos one after each other. I get 8 frames a second on a 7d at 18 million pixels.. im assuming a 35mm film projector would give better results for cheap... dam Ive seen second hand projectors for 2 GBP in some car boot sales lol....

So a simple turn based projector could do it. 1st slide, photo, 2nd slide ,photo, 3rd slide, photo. If you have a remote for the camera and a button on the projector it could be done on static objects fine right?
Canon 7d
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tokina 11-16mm wide lens
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canon 50mm 1.4F lens
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Re: SL Pattern Maker

Postby Goose » Wed Jun 10, 2015 11:13 am

Hello everybody!
Please help.There is a need in SLPatternMaker, but the download link was dead.
Thank you in advance!
Goose.
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Re: SL Pattern Maker

Postby kknapp » Thu Jun 11, 2015 5:55 am

How does one utilize the SL Pattern Maker generated patterns for SLS?

What are the advantages?

Ken
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Re: SL Pattern Maker

Postby Goose » Thu Jun 11, 2015 9:08 am

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Re: SL Pattern Maker

Postby Sven » Thu Jun 11, 2015 9:52 am

Hi Goose,

I have repaired the download link:

This is useful only for DAVID2, where SL is experimental. That software is >4 years old and SL works 1000 times better with DAVID3 or 4.

If you want to export the pattern images in DAVID3/4, you should click on the projected pattern (on the projector) with your right mouse button, then click "Save Pattern Sequence Images".
SavePatternImages.png


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Re: SL Pattern Maker

Postby Goose » Thu Jun 11, 2015 11:15 am

Thank you very much!!!
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