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[Gallery] SL results

Discussions about latest DAVID developments, beta versions...

Dark Bronze Test

Postby hal » Sun May 15, 2011 6:25 pm

Hello,
here a quick test of scanning with a dark bronze object (28cm x 10cm x 4 cm).
Scanning done without any coating (the surface is dark but not shiny).
Scanning done in normal room lighting (see the attached videos).

MatM_D3_DarkBronze_AdvSet.jpg
The Advanced Settings

MatM_D3_DarkBronze_01.jpg
Camera views.

MatM_D3_DarkBronze_02.jpg
Some aligned scans and the real object.

Attached videos shown the lighting condition of the room (well, the video is a little over-exposed), the relative position of projector and camera and the spped of the scanning process.

MatM_DarkObjectVideo1.avi
(2.09 MiB) Downloaded 469 times

MatM_DarkObjectVideo2 (1).avi
(5.38 MiB) Downloaded 399 times

After the first tests and after a beta update, seems that David isn't so bad ... :P

Mattia
PC: DELL Alienware 17, Intel I7-4710MQ, 32 Gb Ram, AMD Radeon R9 M290X 4GB.
SO: Win 8.1 64Bit.
CAMs: USB 3.0 CMOS B/N (1280x960, 60 fps).
LENS: 12 mm.
PROJECTOR: DAVID SLS1 ACER K11.
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Re: [Gallery] SL results

Postby WalterMo » Fri May 20, 2011 7:52 pm

Hi,
The first SL scan of me.

Camera Logitech C600 (with a Super 8 zoom lens), 800x600, 15fps.
1 x smoothed median.
Acer K11 projector. Negative corner for the calibration.
Frequency = 8
Pattern holding time = 250
Phase shifts = 4
Pattern Projection: Orientation = both

Scan time = 13 sec.

Walter

Edit: A second scan was made at 640x480 @ 30fps. Pattern holding time = 120, Frequency = 8, Shifts = 5. Now the scan time was only 8 sec. My head wasn't leant against something. 1 x smoothed median and 1 x smoothed average.
Attachments
Walter SL1.jpg
800x600, 15fps
SL setup.jpg
Used setup
Walter SL2.jpg
640x480, 30fps
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Re: [Gallery] SL results

Postby MagWeb » Sun Jun 26, 2011 12:57 am

Hi,

thanks we have the option to save - here´s a more complex project:

A SL scan of a Warhammer 40*000 model called "Trygon". Mounted height around 140 mm.

I scanned head, torax, abdomen, tail and claws as separate parts (67 partial scans in total - if I counted right.... due to the current bug that does not save registration I did not keep the partial scans.)

Rendering was done in ZB.


Gunter
Attachments
Trygon_parts_in_DAVID.png
Trygon1.jpg
Trygon4.jpg
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Re: [Gallery] SL results

Postby MagWeb » Sun Jun 26, 2011 1:07 am

Some more
Attachments
Trygon3.jpg
Trygon5.jpg
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Postby hal » Sun Jun 26, 2011 2:02 pm

Hello Gunter,

Wow, that's perfect :shock:
Very precise... What's the Scale value? I try to guess: between 50 and 70 mm?

Compliments, you set the SL bar at new level. Now I'm angry because you overtake me :lol:
Please, see my face expression :lol: :lol: :lol:

MatM_UruK_Head.jpg

This was scanned from a "Lord of the Ring" Uruk-Hai medium size bust.
Obviosly no coating with David SL.
The surface is dark and quite shiny, but no problem with my cheap projector, used in a normal room light.

26 single scans.
Scale factor 80 mm.
5 seconds for every scans.
Frequencies at 6.
PhaseShifts at 8.

Here you can see the Phase Error Curve:

MatM_UruK_PhaseCurve.jpg
MatM_UruK_PhaseCurve.jpg (19.08 KiB) Viewed 12061 times

Regards,
Mattia
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Re: [Gallery] SL results

Postby MagWeb » Mon Jun 27, 2011 9:25 am

Hey Mattia,

think you need a dentist - I can see the plaque on the teeth ! :lol:
Impressive scan!

Good guess: My pattern's scale was 63mm

Gunter
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Re: [Gallery] SL results

Postby C4ptain_Mike » Wed Jun 29, 2011 2:44 pm

I wanted to post my first good scan ever! lol, I have been scanning with david for a while, but my scanning skills have always been less then par and my set up has always been less then Ideal. However with david 3 on the very second day ever using structured light I got this :)
Attachments
dino scan.jpg
www.michaeltaylor3d.com
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Re: [Gallery] SL results

Postby C4ptain_Mike » Wed Jun 29, 2011 2:48 pm

Im still getting a slight wavy pattern though as you can see if you look closely. Its not to bad, but does anyone know what causes that?
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Re: [Gallery] SL results

Postby BLinus » Wed Jun 29, 2011 4:01 pm

After a whole day of tweaking and testing, I finally got some nice scans out of SL. Since I cannot get my Canon to work with SL in David 3 (beamer calibration always fails), I had to use my old crappy webcam instead.

Beamer is some cheap noname for 120 bucks or so. Gotta get a better one soon I guess.

For David 3: Awesome job so far!
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SL_scan_expression_05.jpg
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Re: [Gallery] SL results

Postby MagWeb » Wed Jun 29, 2011 5:52 pm

Hi,

nice to see some more joining the party.... :D keep on!

@ C4ptain_Mike:

For the head of the dino seems quite good, I guess you have something out of focus in the lower region. Cam and projector should have the same depth of field and should be focused on the same distance. I try to set the focus of both systems on the outer ring marker.

Gunter
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Re: [Gallery] SL results

Postby WalterMo » Wed Jun 29, 2011 7:42 pm

C4ptain_Mike wrote:Im still getting a slight wavy pattern though as you can see if you look closely. Its not to bad, but does anyone know what causes that?

Maybe this helps:
Goto the Advanced Settings (click with the right mouse button), Structured Light and:

Increase the number of 'Frequencies' from 7 to 8.
Increase the number of 'Phase Shifts' from 4 to 5.

Or, if this will not work immediately you have to "play a bit" with these parameters.
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Re: [Gallery] SL results

Postby C4ptain_Mike » Wed Jun 29, 2011 8:01 pm

In that scan I had it set to Frequencies: 8; Phase Shifts: Set to max, I think it was like 12 or something like that.
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Re: [Gallery] SL results

Postby BLinus » Thu Jun 30, 2011 9:26 am

Just testing to crank up the exposure to get my dark brown hair scanned. Any tips to scan hair?
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hair.jpg
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Re: [Gallery] SL results

Postby WalterMo » Thu Jun 30, 2011 9:53 am

I think you have to powder it with:

Baby powder,
Talcum powder,
Frottee hairspray,
or a special hairspray which is used to colour it light gray, sometimes used by crazy kids to look like their grandmother. Or for carneval. You can get it in a decoration (Deko) shop.

For general preparation of a surface, here are a lot of hints:
viewtopic.php?f=2&t=1283&hilit
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Re: [Gallery] SL results

Postby BLinus » Fri Jul 01, 2011 1:17 pm

Thx for the hint, will try next time.

Here´s one last test I made today, to get a nearly fullbody scan.

Comon Guys, release that thing! I want to export my scans :)
Attachments
fullbody_lean_01.jpg
fullbody_02.jpg
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