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Little ogre, big David.

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Little ogre, big David.

Postby hal » Mon Sep 17, 2007 2:14 pm

Salve a tutti,

how are you?

here a test with little Warhammer miniature.

Cam: Trust WB 5400 (resolution: image 1=1024x768, image 2 and 3, 800x600)
Laser: laser leveler, B&D (laserline reduced by black tape, because object is little and a big line can be problematic).

IMPORTAN: i made this in short time with improvised set (panels not perfectly 90° and calib set markers stamp on a blended page) because i haven't more time. I think (i'm sure) the work like more precise if i build a seriuos set. and finally, last but not list, i moved laser handly...

a question: why, when i fuse meshes in poisson mode, sometime appear artifacts (big flying mesh around object) and sometimes works good? in the final mesh in 1024x768 scan-resolution, firts time i fuse my meshes at 512 resolution value and result is correct (what can you see in firs image). after i try again with other resolution (256 and 600) but although i have a good number of single scan-mesh (8 all around), shapefusion failed, and made a mesh with tipical poisson's "sails", sheets. why one tme work, and after don't? same file, same result, i expected...

bye
Attachments
Ogre_1024x768.jpg
scanning in 1024x768, rapidly and handly.
Ogre_800x600.jpg
scanning in 800x600
Ogre.jpg
first 800x600 scanning and fusion
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Postby Bongobat » Tue Sep 18, 2007 4:04 pm

Nice work Hal. I have a couple of questions about that camera. What is your frame rate as seen by david at 1280x1024 while scanning? Does it reproduce colors accurately? Is it CCD or CMOS? Seems like a nice afordable camera for scanning. Can you give us your review of it?
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Re: Little ogre, big David.

Postby Simon » Tue Sep 18, 2007 5:32 pm

Nice! :D
hal wrote:a question: why, when i fuse meshes in poisson mode, sometime appear artifacts (big flying mesh around object) and sometimes works good?
Good question. I have no idea. Do you have very large holes in your aligned scans? I realized that in some cases the fusion process has problems to distinguish between 'inside' and 'ouside' if the missing regions are to large. :?
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little hole

Postby hal » Wed Sep 19, 2007 1:38 pm

hi simon, yes, the problem of artifacts is linked with hole in mesh. but i assume this is natural when (my 3 image) i have big hole. in first image are present 1 or 3 little holes in final mesh: first time i lauch poisson fusion all works well, but other time different artifacts appears. bho. thanks for reply.

hi bongobat, thanks. as soon as possible i post the camera's details. bye
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..

Postby hal » Sat Sep 29, 2007 9:57 pm

salve a tutti

i thik webcam trust wb 5400 is a CMOS (thanks WalteMo :wink: ), but i don't know exactly. at 1280x1024 in david work at 11 fps, 15 fps in 1024x768. color ar correctly reproduced and it has lot of parameter. work perfetly, for david, in b/w. only two problem: moving zoom handly can move the webcam (very light) and during work, sensor warming and little colored pixel (not much, fortunatly) appears. but is a ggod camera, and isn't expencive.

bye
Last edited by hal on Fri May 01, 2009 9:53 am, edited 3 times in total.
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Postby WalterMo » Sun Sep 30, 2007 5:06 pm

Hello hal,
The Trust WB-5400 has a CMOS-sensor. I don't know any CCD-Web Cam on market which has a resolution of 1280x1024 pixels.
First it seem so that martinziener had found one when he presented the Agent V2 Web Cam on Aug 21. But 5 days later and after some inspections by him he told us that it is also a CMOS.
Your mentioned frame rates are neary the same as I found with my TRUST.

Walter
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Postby Bongobat » Wed Oct 03, 2007 4:31 pm

Thanks for the info you guys :D
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Old/New Comparison

Postby hal » Sat Mar 10, 2012 2:28 pm

Hello,

In this period I'm nostalgic and sometimes, looking at the past years, I think how dirty and raw were my first scans (and how fun David gave to me :D ).
So, I've tried to re-scan again the same small object done in 2007.
This WarHammer series miniature was one of my first test about small objects.

The old hardware, used for Laserscanning, was an hand-held red laser leveler and a Webcam at 1024x768.
The new one for Structured Light is a DELL projector 1280x800 and a CCD camera at 1024x768.

MatM_Ogre_ComparisonOldNew.jpg

... just to have a comparison after a doubled David version.

MatM_Ogre_01.jpg

Attached the OBJ file, just to have a closer look (sorry, I reduced the mesh density drastically because forum uploading).

Mattia
Attachments
MatM_Ogre.rar
(3.13 MiB) Downloaded 288 times
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Re: Little ogre, big David.

Postby supersteve3d » Fri May 04, 2012 12:36 am

... just to have a comparison after a doubled David version.


Thanks Hal. I've been lurking in these forums for a while now. Being a beginner, I have many questions about the best way to get into this..

What do you mean by a 'doubled David version'?

Thanks.
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Re: Little ogre, big David.

Postby hal » Fri May 04, 2012 10:18 am

supersteve3d wrote:What do you mean by a 'doubled David version'?


Just that the first ogre was done with David 1.5, and the last with David 3.
So... 1.5 x2 :D
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Re: Old/New Comparison

Postby Austin » Thu May 10, 2012 10:28 am

hal wrote:Hello,

The old hardware, used for Laserscanning, was an hand-held red laser leveler and a Webcam at 1024x768.
The new one for Structured Light is a DELL projector 1280x800 and a CCD camera at 1024x768.


Mattia


Hi Mattia.Can you show your whole setting of your equipments?
I'm a newbie here, and want to scan shoe lasts with DAVID. And now i'm choosing my hardware.Can you tell me some tricks?
Thanks a lot
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Postby hal » Thu May 10, 2012 1:04 pm

Hello,

you can see my hardware in some images here viewtopic.php?f=7&t=4400&p=22284#p22284.
About shoe scanning, I've done, not too much time ago, this scan viewtopic.php?f=7&t=4401

Mattia
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Re:

Postby Austin » Fri May 11, 2012 4:17 am

hal wrote:Hello,

you can see my hardware in some images here viewtopic.php?f=7&t=4400&p=22284#p22284.
About shoe scanning, I've done, not too much time ago, this scan viewtopic.php?f=7&t=4401

Mattia


Thanks Mattia.
Your works are so excellent! Can you tell me the detail parameters of the CCD camera you used? Whick can I buy the industry camera and the lens?
Thank you very much.
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Postby hal » Fri May 11, 2012 9:18 am

Hello,

the camera si the same of the color CCD that you find in the David Shop.
https://ssl.david-vision-systems.de/sho ... 05c470ad18
The only difference is that I use a 12 mm lens instead a 6 mm.

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: Little ogre, big David.

Postby geodav » Mon May 28, 2012 1:16 pm

Hi Hal, i just wish you would scan more of your figures, maybe some of the Orks without helmets if you have them.

now i only need to win the lotto :)

really nice to see that its posible, great work
http://www.moddb.com/mods/ut40k-the-chosen - Warhammer 40,000 for UDK
http://www.youtube.com/user/ut40kgeodav?feature=mhee My Youtube Tutorial Channel for all things conserning the Unreal Developement Kit
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