An Immaterial Pseudo-3D Display with 3D Interaction

We present a novel walk-through pseudo-3D display, which enables 3D interaction and interesting possibilities for advanced user interface designs. Our work is based on the patented FogScreen, an “immaterial” indoor 2D projection screen which enables high-quality projected images in free space. We extend the basic 2D FogScreen setup with stereoscopic imagery and two-sidedness, in addition to the use of head tracking to provide correct perspective 3D rendering for a single user. We also add support for 2D and 3D interaction for multiple users with the objects on the screen, via a number of wireless input technologies that let us experiment with interaction with or without encumbering devices. We evaluate the usability of these interaction techniques by observing non-expert use in real settings to quantify the effects they have on 3D perception. The result is a wall-sized, immaterial pseudo-3D display that enables engaging 3D visuals with intriguing 3D interaction.