Laser scanning for the interactive walk-through fogScreen

FogScreen is a free space 2D projection screen, which enables to touch and walk through an immaterial image. FogScreen consists of flowing air with a little visible humidity in the center of flow, and enables high-quality projected images in thin air, and many new applications.The FogScreen can be made interactive. Robust tracking of the user's pointing is a key element of the interactive system. In this short paper we present robust tracking employing laser scanning.