Take a spinning mirror, a high speed camera, and a couple of ingenious students. What do you get?
About 8 years ago students at the Graphics Lab at USC created a low cost way to display 3D objects.
The system works by projecting high-speed video onto a rapidly spinning mirror. As the mirror turns, it reflects a different and accurate image to each potential viewer. The rendering algorithm can recreate both virtual and real scenes with correct occlusion, horizontal and vertical perspective, and shading.
The cool thing about this display is its:
- autostereoscopic – requires no special viewing glasses
- omnidirectional – generates simultaneous views accomodating large numbers of viewers
- interactive – can update content at 200Hz
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