| 摘要 |
A device (1) for detecting vehicles (2) on a traffic area (3) comprises a plurality of monocular digital cameras (5.1-5.n) transversely arranged above the traffic area. The viewing directions (6.1-6.n) of the cameras are oriented downwards and lie in one plane (8). An evaluation unit (14) receives images captured by the cameras (5.1-5.n) at synchronized points in time. The relative positions of the cameras (5.1-5.n) with regard to each other and to the traffic area (3) and their viewing directions (6.1-6.n) are known to the evaluation unit (14). The evaluation unit (14) combines at least three cameras (5.1-5.n) having overlapping fields of view (7.1-7.n) into a virtual camera (15.1-15.8), by calculating virtual images with virtual fields of view from the images captured by said cameras (5.1-5.n) at the synchronized point in time and from the known positions and viewing directions of the combined cameras. |
