You get an infrared camera and on the screen a coloured bounding box is drawn over each identified pedestrian or animal etc. Green no threat, red sounds an audible alarm so you don’t need to drive looking at the screen to get benefit of it.
It sees things that just cannot be seen by projecting a light source from near you, no matter how bright.
EDIT: see from 2:25 in https://m.youtube.com/watch?v=kQqCDjxYFVc