Night vision systems use infra-red image sensors to detect and image objects that are difficult to see in the absence of sufficient visible light. Passive systems use thermal cameras to image objects based on their natural infrared radiation, which is related to their temperature. Active systems use infrared light sources to illuminate objects in front of a vehicle and infrared sensors to record the image.
Automotive Night Vision Demonstration: Clemson AuE893 Class Project by Fan Zeng
Infrared image sensor
Image display (usually on dashboard or projected on windshield).
Typically, closed-circuit systems that do not use standard automotive data communications networks.