Infrared cameras are much more expensive than visible-light ones; the energy of infrared light is smaller than visible light, making it harder to capture, said researchers from the University of Chicago in the US.
The Volvo XC90 SUV involved in the Tempe collision was equipped with a set of sensors that could activate an automated braking system,. However, the system was disabled whenever the SUV was being operated in self-driving mode.
Google's Waymo has started testing its own autonomous truck. According to a report in BuzzFeed, Waymo's self-driving truck was spotted in a photo and the development was later confirmed by the company. Waymo said it was currently only testing one vehicle