SPATIALLY ADAPTIVE PHOTOGRAPHIC FLASH UNIT

摘要

A lot of existing technologies for tangible user interface tracking use back- or front-projection setups, but they suffer from poor image quality, shadow casting, non-ergonomic interaction, and/or large installations. The known drawbacks are eliminated with infrared photodiodes mounted behind a display's LC-matrix to track infrared diodes in front of the LC-matrix. The sensors are addressed through a modular master-slave circuit. Using several interaction devices, multiuser interaction is possible.