Geo Wall Projection

The geowall is a low-cost solution to simulate a 3D depth perception on a 2D screen. This is generated off a PC with a dual-head VGA card. This allows the PC to have one wide display spread over two monitors. The graphics engine then draws teh left eye view on one display and the right eye view on the other display.

Images from these two monitors are then hosted onto DLP projectors which have filters in front, thereby polarizing the light that reaches the screen. This polarized light is transmitted through the screen onto the viewers side.

Viewers wear light weight glasses with filters so that the right eye sees only the right image and left eye the left image. The brain then reconstructs these two images, giving the viewer the perception of depth.

The clinical simulation center has invested in this technology to overlay virtual environments in the center. Past virtual environments include a sick bay in an ocean liner, the virtual oprating room etc.

This low cost setup with excellent depth perception can also be used as a teaching tool to display complex structures, which would otherwise be difficult to visualize in 2D photographs.

More Information: http://www.geowall.org.