The big problem for vision systems (in particular if they don't use a lot of cameras) is that it's very difficult for them to determine movement and distance. T

The big problem for vision systems (in particular if they don't use a lot of cameras) is that it's very difficult for them to determine movement and distance. This becomes exaggerated when objects move perpendicular to camera, one of the reasons is that the distinctive features of cars, trucks, buses are not so clear anymore. There are quite a few examples of hilarious mischaracterisations in these sort of cases.