The Enhanced Vision System is designed with safety in mind just like previous implementations, but takes it to a whole new level. Let’s say it’s foggy or stormy. Ultraviolet lasers will paint road lines on the windshield and even read road-side signs to aid with navigation. An enhanced night vision mode even works with the new system to more percisouly identify road obstacles and animals.
All this is done with a series of front-facing sensors. This is combined with several in-vehicle cameras that track the drivers head and eyes to properly place the augmented reality layer on the windshield.
Source: CrunchGear