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3D scan of Nefertiti statue

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3D scan of Nefertiti statue

Postby hal » Fri Aug 28, 2015 7:26 pm

Hello dear davidians,
long time I don't post something new: here the latest project about the well know Nefertiti ancient sculture.
A friend of mine bought, time ago, one of the limited series' piece that came directly from the high resolution 3D scanning and 3D printing performet by the replica Workshop of the National Museums of Berlin (2011). The Prussian Cultural Heritage Foundation has planned a limited special edition of 100 replicas of the Bust of Nefertiti: some of them were painted, other were casted in white gypsum. One of those I got in my hands to scan with David.

Nefertiti_12.jpg

Nefertiti_13.jpg

Nefertiti_11.jpg

The copy was scanned into 25 single scans, aligned and fused, all into David Shapefusion.

MatM_Nefertiti_TurnTable.jpg

MatM_Nefertiti_FaceCap.jpg

MatM_Nefertiti_FaceClsUp.jpg


The file was edited and printed at 20 cm heigh and a cuttted area of the face at 1:1 scale.

Nefertiti_01.jpg

Nefertiti_08.jpg

Nefertiti_10.jpg


Hope you like, best regards,
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: 3D scan of Nefertiti statue

Postby NARMELLA » Sat Aug 29, 2015 4:44 pm

Hi Mattia,

It's perfect .
A good result only by using 25 single scans.

Hope to see more .

Good luck
NARMELLA
Data projector : NEC VE 281
Camera(s) : Canon eos 600D (3x)
Software : Lets scan 2.5 + David laser scanner 3.9
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Re: 3D scan of Nefertiti statue

Postby Curiousjeff » Sat Aug 29, 2015 6:25 pm

Hi Mattia,

I am very impressed by the scan and especially the smoothness and quality of the surface (check, lips).

Could you tell us a little about your settings in DLS to achieve this high quality ?

From "structured light" tab: Number of patterns ? Smooth average ? Smooth median ? Quality check ?

From "Advanced settings": frequencies ? shifts ?

From "Shape fusion" tab: resolution ?

Congratulations.

Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: 3D scan of Nefertiti statue

Postby dklassen » Sat Aug 29, 2015 7:03 pm

Indeed, very nice work.
Acer Aspire V15 laptop w/ 8g ram / Windows 10, Acer K132, DFK 42BUC03, Computar Megapixel 2/3 12mm, David 4.0, V-Slot 1000x20x40 linear rail, Cam and Projector mounts by JDM Dyno.
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Re: 3D scan of Nefertiti statue

Postby hunkatibor2 » Sat Aug 29, 2015 11:01 pm

Hi Mattia
Yes, I miss your post in the forum. You are a leading figure, we just follow you. Please instruct us in this wonderful quality!
Tibor :D :D :D
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Postby hal » Sun Aug 30, 2015 11:24 am

Hello and thanks for the comments :)

@NARMELLA: Yes, at the end, from the 32 scans took during scanning, I've discarted some and reduce the number of the useful scans to 25. As you can see the scanned area isn't too small but still have details (I am using a 1280x960 cam).

Nefertiti_14.jpg

@Curiousjeff: The raw scan result always have some noise (that is normal for the 3D scanners). After the fusion noise was reduced and then, the final touch in my workflow was a manual smoothing of the surfaces with 3D editing software. And I think the shader choosed for the renderings maybe helps to hide the small artifacts. Here a shoot of the raw scans.

Nefertiti_15.jpg

About the parematers you ask for, I don't use any smoothing values during scanning.

From "structured light" tab: Number of patterns? 26
Smooth average? 0
Quality check? 0,5
From "Advanced settings": frequencies? 12
shifts ? 15
From "Shape fusion" tab: resolution? 3000 (but this is related to your project and change case by case: to find the right value, check the vertex spacing of your scans and then choose a fusion value that is fitted on that value).

@dklassen and hunkatibor2: thanks :D

Best regards,
Mattia
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Re: 3D scan of Nefertiti statue

Postby NARMELLA » Sun Aug 30, 2015 3:55 pm

Hi Mattia,

Thanks for explanation :D

And about frequency " 12 " :
Which resolution of data projector do you use to project such tiny patterns ?

NARMELLA
Data projector : NEC VE 281
Camera(s) : Canon eos 600D (3x)
Software : Lets scan 2.5 + David laser scanner 3.9
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Re: 3D scan of Nefertiti statue

Postby hal » Sun Aug 30, 2015 5:04 pm

Hello dear NARMELLA.
Do you mean the camera resolution? the native one, 1280x960 at 60 fps.
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: 3D scan of Nefertiti statue

Postby NARMELLA » Sun Aug 30, 2015 6:22 pm

The resolution of projector and its frequency ?
Data projector : NEC VE 281
Camera(s) : Canon eos 600D (3x)
Software : Lets scan 2.5 + David laser scanner 3.9
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Re: 3D scan of Nefertiti statue

Postby Curiousjeff » Sun Aug 30, 2015 8:17 pm

Hi Mattia,

Thanks for all the information.

I have never tried frequency "12".

Since 7 is the default, I have tried 8 but never more. I will make a test.

You say:

"After the fusion noise was reduced". Do you mean that the fusion itself reduces a little the noise or did you apply a noise reduction filter ?

and

"the final touch in my workflow was a manual smoothing of the surfaces with 3D editing software"

Could you tell us a bit more..what software (Blender, Zbrush, Maya ?) and how ?

Sorry for all the questions but that is what happens when you post a great scan :)

Regards,
Jeff
Attachments
Frequencies.jpg
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: 3D scan of Nefertiti statue

Postby hal » Sun Aug 30, 2015 9:05 pm

Curiousjeff wrote: Do you mean that the fusion itself reduces a little the noise or did you apply a noise reduction filter ?

The fusion fuse some scans togheter. Any single scan have its noise factor (the little waves and pits on the mesh). If you fuse the scans, many of those pits and waves are mixed together, so the final result will be an average result between all the overlapped surfaces. Furthermore the fusion recalculate the points, so create a new map of 3D points: this help a little to make more uniform the final mesh (obviously if you have huge artifacts, those will be transfered to the fused mesh. The trick is to keep the noise lower then the smaller detail you are scanning (eg.: if your surface have 0,1 mm details/reliefs, you should avoid to have noise that create artifacts sized same or more then 0,1 mm). In my case I had some problems to clean the noise on the "cap" od Nefertiti, where the roughness of the surface create fine details. More easy was to clean the skin's areas.

Curiousjeff wrote:Could you tell us a bit more..what software (Blender, Zbrush, Maya ?) and how ?

I like to use ZBrush and the Smooth brush, setting at lower values or masking the desired areas and then apply several times the smoothing modifier.

Best regards,
Mattia
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Re: 3D scan of Nefertiti statue

Postby Curiousjeff » Sun Aug 30, 2015 9:20 pm

Thanks Mattia.

Very precious information.

I'll keep working on it.

Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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Re: 3D scan of Nefertiti statue

Postby WalterMo » Mon Aug 31, 2015 8:40 pm

Hi Mattia,

Perfect scan and perfect print of a famous bust. This is what we expect! :wink: Thanks for sharing.
I think you have used your Form 1+, and you have printed it in two parts. The "border" is just below the chin around the upper end of the neck. Am I right?

Walter
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Postby hal » Mon Aug 31, 2015 9:31 pm

Hi dear Walter,
yes right, printed with Form1+, 50 micron layer thickness, black resin by FormLabs.
and yes, right, the first junction is exactly where you wrote...but there is a second one in the bust: the top side of the "cap" was printed apart. I am not very happy about how appear that area, so if I will print again, I will cut the bust with different approach.
The face was printed into 4 parts.
Thanks for the comments,
Mattia
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Re: 3D scan of Nefertiti statue

Postby Curiousjeff » Wed Sep 02, 2015 11:08 pm

Hi Mattia,

I made some test this evening using your settings.

But I was not able to calibrate with "frequencies" at 12.

I was using the Acer K135 with the native resolution 1280 x 800.

I was able to go up to frequencies 9. Above that number, I get a failed calibration.

I also "pushed" the resolution of the projector to 1980 x 1080.

With "frequencies" at 9 and projector at 1980 x 1080, I got good results with a nice surface quality.

How are you getting a good calibration with frequencies 12 ?

Jeff
Panasonic GH4 4K with lens 12-35, Inogeni 4K to USB3 hdmi capture device, projectors: Acer K135/Acer K11/NEC V260X, Canon 60D, macro 60 mm, MagicLantern
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