Patent ID: 8570423

Claim:
A visual-collaborative system comprising: a transparent screen having a first surface and a second surface; a rear projection system comprising a right projector and a left projector, the projection system being configured to project stereo image pairs onto the second surface of the transparent screen, the rear projection system including a first filter system disposed between the projectors and the screen, the first filter system being configured to pass through a set of wavelengths in a visible spectrum; wherein the set of wavelengths corresponds to one of a shorter or longer wavelength range of each of a red, green, and blue portion of the visible spectrum; a camera system having a left camera and a right camera, the camera system being configured to receive light passing through and light reflected from the transparent screen, the camera system including a second filter system disposed between the cameras and the screen, the second filter system being configured to block the set of wavelengths such that the light reflected from the transparent screen is substantially blocked, and the light passing through the transparent screen is substantially passed through the second filter system; and shutter glasses having a left eye shutter and a right eye shutter, the left eye shutter being synchronized with the left projector, the right eye shutter being synchronized with the right projector, the shutter glasses functioning to provide a participant wearing the glasses to view a three dimensional image on the first surface of the transparent screen, the three dimensional image corresponding to the stereo image pairs projected by the rear projection system.