| 摘要 |
The invention relates to a method and a device for detecting an object or a person (2), especially in a motor vehicle (1), using at least one illumination unit (3) which emits light pulses (4) for illuminating an image region (5) to be examined, and an image recording unit (6) comprising at least one image sensor (7) that receives light pulses reflected by an object (2) or a person in the image region and records the image information of the object (2). At least one illumination unit (3) is arranged in or on the motor vehicle (1) in such a way that it is spatially separated from the image detection unit (6). The invention is characterised in that one unit (6 or 3), out of the separated illumination unit (3) and the image recording unit (6), emits control light pulses (10) for the synchronisation or control of the units (3; 6) by means of a light wave emitter (8), and the other unit (3 or 6) receives the control light pulses (10) by means of a light wave receiver (9). In this way, both a thermally favourable location and a location which is favourable in terms of illuminating a scene of interest (5) inside and/or outside a motor vehicle (1) can be advantageously selected. The invention is not only especially suitable for passenger protection systems in modern motor vehicles (1), but for all motor vehicle-related video systems with active infrared illumination. |
