Night Vision System for Cars

That’s why Siemens VDO Automotive has developed an infrared system that’s up to series production standards. Night Vision makes a vehicle’s darkened surroundings visible out to a distance of 150 meters. Night Vision generates an electronically processed video image that can be displayed in real time either in the head-up display or on a TFT monitor in the instrument panel.

Depending on the automotive industry’s design requirements, Night Vision works with two different systems. With the near-infrared system, two barely noticeable infrared emitters are integrated into the headlights. The infrared light they produce is captured by a small camera positioned close to the rear-view mirror. The second system, a solution in the long-wave spectral range, a high-resolution infrared camera is installed behind the radiator grille. Using a wavelength of six to 12 micrometers, it detects the infrared heat radiation from the vehicle’s surroundings, which is displayed as a negative image: Objects that are cold — because they are inanimate — appear darkened, and living things are displayed as bright objects.

The pedestrian marking in the video image has been realized by Siemens VDO as a prototype with image processing electronics. This analyzes all the image data according to temperature differences and typical shapes and marks pedestrians on the monitor with a warning. It will be some time before these special features will be ready for market launch.

The advanced development phase for an exclusively video-supported Night Vision system has been completed, however. Production as part of a network of driver assistance systems could be launched in 2008. In addition to the electronic recognition and evaluation of a vehicle’s surroundings, Siemens VDO sees comfortable interaction between driver and system as the most important development priority.