Advancing Large Interactive Surfaces for Use in the Real World

Figure 10

The arrangement of surface, IR-spotlights, camera, and projector has to satisfy some basic requirements in order to avoid direct reflections of IR-light into the camera (see text). This is accomplished by a shadowing panel. Note that the camera and projector can be separated from each other's view-cone in the dimension not viewable, so that they do not interfere one another.