If you have one of these, you can capture *amazing* full-color high definition 3D video:
The general idea is:
1. Record a scene with two high definition camcorders running at the same time. Have them mounted on a board, pointed the same direction, and spaced about 1 foot apart.
2. Acquire the footage into a computer and edit the streams to synchronize them with each other to within 1/30 of a second. You now have two streams, one for the left eye and one for the right.
3. Use a filter to combine the two matched streams such that the left eye content is on top, and right eye content is on the bottom. This would normally end up with a pretty tall video, 1440x2160. But it has to be stretched back down to half the original height, 1440x1080.
4. On a computer with a CRT monitor (must be a high-end CRT, not LCD), set the resolution to SXGA+ (1400x1040), True Color, and 60Hz vertical refresh.
5. Put a frequency doubler inline on the video signal that makes the vertical refresh cook along at 120Hz. Each frame being displayed is shown as a 1400x520 progressive slice, stretched to fit the whole screen. Some CRTs can't scan that fast, so you have to try out high-end units until you find one that can actually go that fast.
6. Synchronize LCD-based shutter glasses to oscillate between left eye and right eye along with the new 120Hz vertical refresh. Each eye gets 60 frames per second, and video is remarkably realistic, and looks really, really smooth.
I'm considering also trying a setup with a couple LCD panels to display the video stream, along with mirrors to allow a person to see the playback. Something like this:
I've submitted this contraption to be shown at the next Maker Faire, held May 3-4 in Silicon Valley. If you haven't been out to the Faire yet, may I just say that it's a must-attend event. Think of "Burning Man", but for geeks. Incredible. At any rate, if you go then perhaps you'll get to see my 3D camcorder in action.