Tesla's system demands more from drivers than manual driving. The driver has to detect automation failures after they occur, but before a crash. This requires faster reaction time than merely avoiding obstacles. Here's a good example - a Tesla on autopilot crashing into a temporary road barrier which required a lane change.[1] This is a view from the dashcam of the vehicle behind the Tesla. At 00:21, things look norm…
Apparently they loose the colour info and process black and white because it is easier. https://electrek.co/2017/05/16/tesla-autopilot-2-0-can-see/
This seems to have been an issue in some of the crashes and maybe was a mistake. See also for example the trailer an earlier Tesla crashed into https://www.theregister.co.uk/2017/06/20/tesla_death_crash_a...
Kind of obvious in colour but at the time it was probably a grey shape against a similar brightness grey sky
Also the big red fire truck http://autoweek.com/article/technology/ntsb-probe-autopilot-...