Well, if you saw that video and it really did show a < 1 second time between the pedestrian becoming visible and being hit, then the autonomous systems don't matter at all. That accident is physically impossible to prevent in that car.
So whether or not the police understand self-driving systems is not relevant to the fundamental physics problem. The key question is how long was the ped visible.
By the time that pedestrian has even traversed a single lane, the LIDAR on top has generated gigabytes of point cloud data showing her moving, assuming constant velocity of both car and ped, on a straightforward collision path.
I don't see how from a single forward-looking camera you want to deduce this crash was "physically impossible". That isn't even half of what we expect from human drivers. We expect them to swivel their head.
"The pedestrian becoming visible" would be to the video cameras. If the vehicle has other sensors (LIDAR, RADAR, etc), how sooner/later would the pedestrian be visible to these sensors? Would it be possible to judge that by looking solely at the dashcam? Would the sensors ignore the pedestrian as a false positive in these circumstances?
I don't understand that comment. "Sensor fusion" is the integration of data from two or more different sensors. It doesn't matter what those sensors are. They don't even have to be different types of sensors.
It may well be that the Uber cars only have LIDAR and optical, but that doesn't have anything to do with sensor fusion.
An accident may be physically impossible to prevent, but that's not the only standard. Initial reports (from the police) say that Uber AV did not even brake. Is not braking at all within a 1 second window the performance touted by AV's detection and braking system?
I don't see how "ped" is necessarily an offensive abbreviation (though it's one that normally isn't used), so I don't think you're justified in believing that the commenter is trying to dehumanize the victim.
As a non native speaker I'm reacting to the use of Ped as well, that paired with the obvious victim blaming that seems to be thrown around a lot, but to a much lesser extent here than in other forums discussing this issue.
Driving is a sensitive subject, people take it personal trying to do generalizations about drivers is just going to land you in a land of troubles, almost worse than profanity.
You're upset for someone using the word "ped" for pedestrian while using a word that's got a dictionary definition of being vulgar and offensive for women? I have to say I'm rather confused. I feel I'm being trolled.
Upon reflection, I wonder where that British term comes from. Maybe it basically means "woman". Reflecting the slur that women are stupid. So it's still sexist, albeit not as vulgar as the US term.
Bah... my intent was certainly to be vulgar, and I stand by that. But if it's going to be interpreted as specifically offensive towards women (an implication not present in UK English) then I'll certainly apologise to all that were thus offended, because that was not part of the plan.
Looks like it's too late to delete it, so we're stuck with it forever.
I'm a male, but I do think it's an offensive term for women in the U.S., despite its more casual usage in the UK. The average female reader would be inclined to think that such slurs -- and their anti-female sentiment -- were considered OK here.
It's too late to delete but I think it's worth it (for future readers) to say that offense isn't intended, and that that word is frowned upon by most HN users and mods.
So whether or not the police understand self-driving systems is not relevant to the fundamental physics problem. The key question is how long was the ped visible.