| 摘要 |
<p>The system has an illumination source (S) constituted of light sources, which are arranged at distance from first and second imaging devices e.g. image sensors (C1, C2), when an object i.e. pointer (P), is located above a display zone (A) of a display surface, where first and second light images of the object provided either by the first light source or by the second light source are captured by the imaging devices. An analysis unit determines positions (Xp, Yp) of the object above the display zone of the display surface from positions of the first and second light images.</p> |
