Is Frontal Projection Autostereoscopic 3D Possible?
South Korea is a country showing a very strong interest in 3D stereoscopy. If any proof is needed, the recent publication by scientist Youngmin Kim from Seoul National University and his colleagues from three other South Korean institutions is titled "A frontal projection-ty three-dimensional display".
"This is the first report that describes a frontal projection-type auto-stereoscopic display based on a parallax barrier and integral imaging by using a projector. Experimental results that support the proposed method are provided."
How it works
The system they designed and tested is based on a standard Panasonic projector and a special screen in which a lot of extremely small holes were laser-punched. The light beam out of the projector passes through a polarizer and reach the screen where a second quarterwave polarizing film is passed throughtwice before and after the light is reflected by the screen. The combination of mcro-holes and quarterwave filter creates different viws for both eyes.
The full 10-pages paper is available at the OpticsInfoBase web site (on the page, click on the 'Acrobat PDF link').