A synthetic scene with a remote participant is projected on a wall-sized display embedded in a real room with matching walls and lighting.
Audio connections allow two-way communication.
The central idea is that wall-sized displays, rather than video windows or monitors, are used for conferencing. Each display shows a synthetic 3D scene into which the video images of remote participants are blended. As the local participant moves, their location is tracked - thus allowing the synthetic scene to be rendered with the correct perspective. Other virtual reality systems, notably the CAVE have also experimented with wall-sized displays. This feature, combined with head coupling and possible stereoscopic display, give the impression of a single, continuous, space.