I assume you could achieve the same thing with less complexity and more cheaply using a fixed system. Either having more than one sensor or using mirrors or so

I assume you could achieve the same thing with less complexity and more cheaply using a fixed system. Either having more than one sensor or using mirrors or something. In fact, I'm sure that the camera systems in place are already doing this to some degree. I think it's more that it's not yet good enough at picking out these stationary objects that are in the path of travel.