The metaDESK: models and prototypes for tangible user interfaces
Proceedings of the 10th annual ACM symposium on User interface software and technology
VIDEOPLACE—an artificial reality
CHI '85 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Barehands: implement-free interaction with a wall-mounted display
CHI '01 Extended Abstracts on Human Factors in Computing Systems
“Put-that-there”: Voice and gesture at the graphics interface
SIGGRAPH '80 Proceedings of the 7th annual conference on Computer graphics and interactive techniques
VR '00 Proceedings of the IEEE Virtual Reality 2000 Conference
Laser scanning for the interactive walk-through fogScreen
Proceedings of the ACM symposium on Virtual reality software and technology
SIGGRAPH '05 ACM SIGGRAPH 2005 Emerging technologies
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Smart walls, interactive displays, and immersive projection dis are increasingly used in visualization and multimedia system. Tracking the user is one key element to implement inter, or e.g., to render new views according to the viewer's position to creat virtual reality-type displays. Persons viewing traditional screens or virtual reality rooms (CAVE) can be track with elec, optical, or many other tracking methods. If optica or computer vision track is used, then line of sight between the cameras and the tracked object is required. Opaque projection screens severely restrict the possibl camera setup, especially in CAVE-like environments.We present a novel, patented method to track users in three di through a projection screen. Our novel idea is to emplo a screen material that is opaque in the visible spectrum, and trans in the near-infrared (IR) spec, and then to use com vision -based or other optical tracking method to track the viewer in infrared spectrum. Non-solid screens like the FogScree seem to be one screen material that can deliver our objective, but also solid screens may be possible.