OrcaM is new kid on block for 3-D data capture
January 21, 2012 by Nancy Owano
(PhysOrg.com) -- Call it automated photograph station, seven-camera system, 3-D model showcase, or digital reconstruction tool. OrcaM is being described as all these things. Whatever the tag, the "OrcaM" name stands for Orbital Camera System, according to its Germany-based developers NEK GmbH. A video demo was making the rounds of web gadget blogs and news sites this week as a camera system to watch.
The OrcaM system involves a large sphere, likened by one viewer as a giant maw, inside which one places the desired object for 3-D scanning. Once the object is placed inside, the sphere is sealed shut and the seven cameras and lights go to work. The cameras take simultaneous high-definition photos of the object at different angles. Serving to define the object's geometry, various combinations of lights illuminate the object differently for every shot, capturing the finest details. After the photo processing, computer processing of the image creates the 3-D model. Observers say the end result is a highly impressive agreement of the real object.
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According to the web site I Programmer, which assessed the video, the wire frame model used 20,000 triangles based on 300 million measured points "accurate to less than a millimeter." The camera system, said the report, is worth the look when accuracy is paramount.A camera system of this size and scope may seem easily destined for the confines of powerhouse R&D labs in the sciences, but OrcaM is also generating interest in how it is being promoted.
Developers of the camera system are identified as NEK. According to the company, “Within the range equipment construction we developed and finished an automated photograph station (OrcaM) for digital visualizations and reconstructions of objects.”
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OrcaM Reconstruction Sequences
The system is also identified on the DFKI site as having been developed "in the context of a project" of the Augmented Vision arm of DFKI, which stands for Germany's Research Center for Artificial Intelligence.NEK sees the camera system as a way to conduct automated transfers of real objects into high-quality digital representations for media such as on the "Internet, cinema, and computer games." The DFKI envisions its application being to create super-accurate models of museum and art objects, models that are good enough to be used instead of the originals. The 3-D models produced by OrcaM are said to be fully textured and of high enough quality for the archives of valuable artifacts from museums.
A useful selling point for both the above two applications is that, with the OrcaM system, key tasks are automatic. The user does not have to calibrate the cameras or lighting system, which the system performs automatically.
More information: http://www.nek-kl. … mera-system/
© 2011 PhysOrg.com
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Jan 21, 2012
Rank: 5 / 5 (3)
Ummm..I hate to tell you this but submilimeter accuracy was state-of-the-art 10 years ago (scanning accuracy today goes down to 0.025mm..well actually that was in 2003).
And 20 000 triangles is far, FAR from stellar. MIT does scans regularly with tens of millions of triangles at that accuracy.
Jan 21, 2012
Rank: 2.3 / 5 (4)
Jan 21, 2012
Rank: 5 / 5 (3)
There are a finite number of particles in the universe. You could never have an infinite number of pixels.
Jan 21, 2012
Rank: 3 / 5 (5)
Jan 21, 2012
Rank: 3 / 5 (3)
Is a pixel a particle, and are we talking about only one universe?
Jan 21, 2012
Rank: 5 / 5 (1)
You need something to represent a bit in an information system, let alone a pixel which is a structure comprising multiple pieces of information (position, colour, etc). A limited number of particles in the universe does set an upper limit on the number of - well everything really, including pixels. And yes, at the risk of being unbearably mundane, let's only assume one universe for now, shall we?
Jan 21, 2012
Rank: 5 / 5 (1)
Minor adjustments? Minor in the sense of constructing a completely different machine, operating in the context of a completely different set of principles to accomplish a completely different objective? If so they yes, quite 'minor'. We should be able to pick one up on Ebay second hand this time next year.
Jan 21, 2012
Rank: 5 / 5 (2)
No can do. It's not your father's physics anymore.
Jan 21, 2012
Rank: 5 / 5 (1)
You're right, it's not. For the sake of argument let's assume there are an infinite number of universes. In order to take advantage of all those universe's particles your device would have to harness them somehow. The device would have to include them, or otherwise make allowances for an interface to them and would thus be infinitely large. It could not be a 'palm-sized consumer item'. Bearing that in mind, for the purposes of constructing a real device let's assume one universe for now, shall we?
Jan 21, 2012
Rank: 2 / 5 (4)
Jan 21, 2012
Rank: 5 / 5 (3)
I'll grant that both of those are finite, though I fail to see how personal attacks on me contribute in any meaningful way. If I've offended you, then I apologize. You're still wrong though.
Jan 21, 2012
Rank: 1 / 5 (1)
Jan 21, 2012
Rank: not rated yet
Jan 21, 2012
Rank: not rated yet
Even multiple universes would not help. If you have a finite number of universes and each contains a finite number of items, you can never have infinite pixels since the last time I checked, infinite was slightly greater than finite.
Jan 21, 2012
Rank: 1 / 5 (1)
Jan 21, 2012
Rank: not rated yet
Oh I see, you weren't serious then! It was all a lark! I'll do you the favour of assuming that your continued (and continuing) defense of the bad idea via the concept of multiple universes was also part of the merry gag. Oh dear, I do feel foolish!
As for my commenting on your usage of personal attacks. My only intention was to point out how pathetic your ability was to defend your ideas using logic and reason. If you have to resort to attacks against my character, well...
Jan 21, 2012
Rank: 1 / 5 (1)
You begin your invitation, how?, that there are an infinite number of universes. We have to harness all of these particles, as you say. Then, you say it's impossible unless you've created an interface of some sort which would be infinitely large, as you claim. The creation of a quantum device is to get smaller, and theoretically, you will. Clumsily, you repeat once again, in order to make a real device, let's assume one universe for now. How would you know if it works?
Jan 21, 2012
Rank: 1 / 5 (1)
I will parry with anyone who challenges me. If I draw information, rather than a sword to refute my challenger, I make sure it's straight, true, and hits its mark.
Jan 22, 2012
Rank: not rated yet
or is like the others devices that can scan only on 180 degree... I don't think this device can be used for industrial design, and so for me is useless...