3D environment detection via projector and camera modules

摘要

The invention relates to a camera device for a vehicle (1), which ensures a 3D environment detection, and to a method for 3D environment detection by means of the camera device. The device and method can be used in particular in the context of driver assistance systems. The camera device for a vehicle (1) comprises at least two camera modules (21, 22) with at least partially overlapping detection areas, a camera control device, an evaluation unit and a point light projector (3). The point light projector (3) is arranged and configured such that the point light projector (3) projects a light pattern of measuring points (6, 16, 26) into the vehicle surroundings (10, 11). The at least two camera modules (21, 22) are arranged and configured such that at least part of the projected light pattern is imaged in the overlapping detection area. The evaluation unit is configured to determine the 3D position of measuring points (6, 16, 26) in the vehicle environment (10, 11) from the image data recorded by the at least two camera modules (21, 22). The point light projector (3) is configured to generate a sequence of "pseudo-noise pattern" as a light pattern, wherein the "pseudo noise pattern" in temporal succession (t0, t1, ... tn) in the vehicle environment (10 , 11).