The Bosch multi-camera system consists of four near-range cameras. One faces forward, another backward, while the two side cameras are integrated into the exterior rear-view mirrors. With an aperture of 190 degrees each, they capture the vehicle’s entire surroundings. The system also includes an ECU, which merges the camera images to form a 360-degree view and – if desired – combines them with distance information from ultrasonic sensors.
Using this data, Bosch generates a dynamic, 3D wireframe around the virtual vehicle model; the shape of that frame is adjusted to match the changing surroundings. Bosch takes the real-time images from the near-range cameras and projects them onto the wireframe. In contrast to 2D systems, this method allows objects that rise up to be represented more realistically.
A new technical feature of the multi-camera system is the seamless, distortion-free stitching together of the camera images in real time. Depending on the selected perspective, the system dynamically adjusts the borders of the images. The result is a homogeneous picture with no distracting frames or overlaps, and object visibility is always at an optimum.
The Bosch multi-camera system supports drivers by providing precisely that view of the vehicle’s surroundings that will let them maneuver and park safely and conveniently. The system uses 3D visualization technology, that is used in Hollywood blockbusters as well, for a very realistic representation.