Agisoft Metashape
Agisoft Metashape => Face and Body Scanning => Topic started by: Mfranquelo on May 13, 2014, 07:34:26 PM
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Has anyone tried to scan stuffed animals with short hair, and birds with feathers sucessfully ? ???
Cheers,
Manuel.
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It looks like it! http://www.agisoft.ru/forum/index.php?topic=2282.msg12292#msg12292 (http://www.agisoft.ru/forum/index.php?topic=2282.msg12292#msg12292)
At least I assume it was stuffed or otherwise flew or was lured into a multi camera rig!
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Thank you James, i even posted in that topic ... i need to pay more attention :-\
I'd love to see the mesh although, texture always confuses from real detail :D
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I did scan a big stuffed giraffe with short hair of course. It came out pretty nice. I can post pictures if you need.
Leo
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Thank you Leo, that would be great.
I need to predict the viability of a project.
Cheers,
Manuel.
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I'd love to see it too!
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I will send the pictures later when I get home.
Leo
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Here are the pictures. Remember that this was pretty much my first successful scan :) I did it with a single camera and took 72 pictures.
Now I am sure I can do better but this gives you an idea of how it comes out.
Leo
Shaded
(http://i234.photobucket.com/albums/ee191/pinimodulo/Dense.jpg)
(http://i234.photobucket.com/albums/ee191/pinimodulo/TexturedFar.jpg)
(http://i234.photobucket.com/albums/ee191/pinimodulo/TexturedClose.jpg)
(http://i234.photobucket.com/albums/ee191/pinimodulo/TexturedClose2.jpg)
Geo:
(http://i234.photobucket.com/albums/ee191/pinimodulo/GeoComplete.jpg)
(http://i234.photobucket.com/albums/ee191/pinimodulo/GeoFar.jpg)
(http://i234.photobucket.com/albums/ee191/pinimodulo/GeoSmall.jpg)
(http://i234.photobucket.com/albums/ee191/pinimodulo/GeoClose.jpg)
And this is the original Giraffe:
(http://i234.photobucket.com/albums/ee191/pinimodulo/P1110408.jpg)
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I must admit I was imagining a real giraffe that had been stuffed, but this is still cool :)
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Me too! cool anyways. :)
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Oh crap! I guess since English is not my first language, here is where the misunderstandings begin :)
I always thought you guys were talking about that kind of animals :) Sorry for the confusion.
I had a great laugh out of this, and I am sure you also did.
Anyway, I will try to scan a couple of dogs I have and see how it comes out if that helps you?
Leo
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haha. That's great! I actually have that same stuffed giraffe. :)
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haha :D, a friend is giving me a stuffed bird for a few days, i'll post results soon.
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I made a scan of a stuffed toy with short curly hair. Is there anyone who has successfully captured animals with long hair ? ;D
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i scanned a weasel, i wasnt overly impressed with the results it did not pick up the mesh too well due to the fur and probably because the taxidermy was not great , the face is indistiguishable without the texture data imo , most of the fur was fairly poor quality and stuck to the body in the taxidermy.
Attached some photos if your interested
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Hmm.. mesh is pretty messed up :( thanks for sharing!
I hope i can try soon with a stuffed bird, when work times allow me.
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I am about to scan a (live) dog so I will let you know how that comes out if you like.
Leo
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Yes that would be amazing Leo,
:)
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this was a stuffed Lizard I did a year ago..
:)
http://s000.tinyupload.com/index.php?file_id=47217396877660823495
f/
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That looks promising :), can we see it without texture ?
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sure..
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Wow thats a great scan :), is it raw data ?
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yes it is... you can see the eyes did not came out good.. :P. due to high reflections... so i simply replaced them for the render..
also a little note, I sprayed the lizard with a matte photo spray prior taking the photos.. because the skin was slightly reflective..
f/
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Pretty nice, too bad we can not spray people with that matte spray :) It would help on the hair, etc.
Leo
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what could work for making hair matte... would be some dry cleaning hair spray... in the past I once used one and found it made the hair very matte.. lol
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That is actually a good idea, I didnt know this existed :)
I will have to try some. Thanks.
Leo
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did anyone tried polarizing filters?
I understood from previous posts that it could help with hair but never tried it yet
problem is cost with multiple cam rig but if it save time it may worth it
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Hi guys, I will post tonight the pictures of the scan I just did of a chihuahua dog (alive :) It came out ok for the fact that the little guy is extremely small for the setup I have that is aimed at full body scans, so the dog only filled a very small portion of the screen and also was not seen by may cameras.
But just a comment on the polarizing lenses, as Fluca said, the cost is the main problem, specially because every cheap polarizer lens reduces the quality of the picture considerably (you can do a test shot and then zoom in and compare with the stock picture and you will be amazed at how bad it looks) so the ones you must use are going to be at least $40 per lens. :(
Another thing to consider is that you would have to increase the lighting a reasonable amount to compensate for the added darkness the lenses will create :)
Leo
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Ok here are the promised pictures of the scan.
You can see that the dog is pretty small in the frame and she was even smaller in other pictures, not even present in many and Photoscan was not able to align 4 cameras because of it.
With all that I was able to get the dog good enough to reconstruct it and print it fine.
Leo
Sparse Cloud, only 6000 points:
(http://i234.photobucket.com/albums/ee191/pinimodulo/Sparse-1.jpg)
Dense Cloud, only 820000 points:
(http://i234.photobucket.com/albums/ee191/pinimodulo/Dense-1.jpg)
Solid Mesh:
(http://i234.photobucket.com/albums/ee191/pinimodulo/MeshSolid.jpg)
Shaded Mesh:
(http://i234.photobucket.com/albums/ee191/pinimodulo/Mesh.jpg)
CloseUp:
(http://i234.photobucket.com/albums/ee191/pinimodulo/Detail.jpg)
Sample Photo:
(http://i234.photobucket.com/albums/ee191/pinimodulo/Size.jpg)
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Cool dog scan :)
Regarding polarising filters, I found from experience that it does help somewhat with hair, though i use linear polarisers on both lights and cameras.... so maybe a bit different to what you may be after.
In general I would be tempted to say that most studios would actually try to avoid scanning hair at all for hi res capture(by using a hair net/hat) if the final assest is likely to used in a feature/game where the hair would need to be animated anyway.....and hair system would be used to recreate it.
Things are changing on this front, it looks like there will be some intersting papers regarding hair at Siggraph.
Of course if you are scanning for 3D print or low poly asset then it's a different matter..if hair is tied back or relativly "dense" then polarisng may improve results.... but I would imagine if it's "wispy locks" it won't help as this a different problem.
Cheers,
mala