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Spinoza

2D to 3D

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Is there any easy way to convert 2D pictures into 3D objects. If I were to take pictures of a cube with a digital camera, is there any software out there that would allow me to convert the 2D pictures into a 3D object? Thanks for any help Spin

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Guest Anonymous Poster
theres software that "helps" in making a 2d picture into a 3d object, most times ull need more than one picture(there are 3d "scanners" that use this same principal, but with a lot of pictures). like i said, it only helps, for high detail models ull need to add the extra datails urself

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Guest Anonymous Poster
computervision imitates our brain wich can extract 3d even from a single eye. For a simple cube it should work.

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there''s actually a program called canoma 3d that does something like that.. its mostly used for architectual concepts and stuff though..
you basically draw little points over structures and extrude areas.

there are also a few software/photography type setups that can make
a 3d object out of 3 or 4 photographs, but not just 1... they use
algorithms that detect similarities in the photographs, then guess
at what ''changed'', then stitches everything together.

-eldee
;another space monkey;
[ Forced Evolution Studios ]


::evolve::

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For a simple cube: yes, that's possible. But I'm not really sure, if that's worth it, you could simply model your cube... If you really want to do that, you should look into computer vision, pattern recognition and neural nets.

For arbitrary scenes, there is actually software that does this pretty well. You have to take around 30 to 40 photographs, at different angles around the object(s). I saw a demonstration of that system on last year's CeBit, but I can't remember what company did it. It was on the SGI booth (so they must be involved), and the software was around $200k ... The quality was very good though, they made it to replace expensive full body 3D scanners.

But for amateur use ? No, at least if you want full automatic conversion (without manual help) and good quality. IIRC, there was an old program that could do that with human heads (you supplied a photograph, and it made up the 3D), but the quality was crap.

/ Yann

[edited by - Yann L on August 15, 2002 11:36:26 AM]

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I beleive Poser 5 boasts about being able to create 3D faces from several pictures of the persons head and face. Not sure how precise and smooth it is. You''d probably have to check the work in any program though and adjust it some.

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Thanks all for the replies.

I actually had in mind taking pictures of a 3D model like a GI JOE figure and then having some program stitch them together to recreate the original model.


I really do appreciate the replies


Thanks,


Spin

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There is a fair amount of research in this area and a couple of products, but the products are expensive and really work best with coarser geometry. Something like an action figure requires a decent amount of detail and for that you''d be better off with products/techniques that explicitly have a range finding capability. The problem is that they are also very expensive.

Roland makes a scanner that can scan 3D features. It''s somewhat affordable (well, more affordable than other solutions anyway... ~$1000), but it''s dirt slow and fairly limited. The upside is that the resolution can be very high.

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