Thursday, June 19, 2014

Would it be possible to make a 3d scanned video?




Cameron


Would it be possible to make a 3d scanned video, not just a picture? Where you can see all 360 degrees of someone for example dancing. Like could you get a ton of camera's and put them in all different directions and then be able to the footage together. Does this technology exist?
Thanks



Answer
They already have this technology to film in this way, it is no different than the technology to do the stop motion rotation. The problem is we do not have the technology to actively use anything generated like this. The problem is this...

36 cameras at 10 deg increments will give you a 360 view of the person, so what this means is you would need a monitor which has 18 double sided monitors at 10 deg increments around a central shaft (or 36 screens total) with 36 separate inputs just to view this video in a fixed location monitor, these do exist by the way, and you would see the video output based upon where you are located around the monitor.

The more cameras and monitors you have set up like this the more it will appear to be 3D.

Now for the problem of your idea. You are wanting to generate a real time 3D video out of the footage, this is physically impossible with our technology level, we can't even generate a true 3D image in the first place, much less a video of it for play back. People who work with 3D graphics software and play 3D games have seen what you are wanting to do, this is because they are working with 3D objects being generated on the fly, but when they output this information it is 2D video, there is no way to output a real time 3D object which can be viewed from any angle at the viewers request, the data generated in this manner would be insane to try to have a permanent copy generated for reviewing, when this is done in games and software once it has been viewed it is lost.

Does this type of camera exist?




Joe Shmoe


A camera that uses radar to scan an object and then produce a 3d model that you can put into a video game.


Answer
you would use a camera and sensor setup for this, most used setup consists of sonar sensors or lasers to scan a 3d image and software to convert a final 3d image for objects. there is alot of new techniques for this, the one i use is sonar and laser for my robotic apps and the laser is most accurate and you can use a laser pointer for it. here is a site i use to keep up with affordable approaches. you should find everything you need here:
http://www.simple3d.com/




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