https://www.telegraph.co.uk/news/2018/03/20/man-dies-freak-cinema-seat-accident-trapped-electric-footrest/ posted:

A man died following a freak accident involving an electronic footrest on a cinema seat.

The man was at the Vue Cinema in Birmingham when he apparently dropped his phone between two reclining seats.

As he went to retrieve it, a footrest of a seat came down on his head trapping him and he suffered a cardiac arrest, reports said.

Although the footrest was eventually broken off, the man, who was there with his partner, sustained serious injuries and he died a week later.

A source told the Birmingham Mail: "The Gold Class seats are electric reclining seats. He bent down to look for his phone. At this point the leg-rest was in an upright position.

"But as he stuck his head underneath to have a look, the footrest clamped down onto his head.

"He was stuck and panicking. His partner and staff tried to free him but couldn’t.

"The chair leg-rest was eventually broken free and he managed to get out.

"The ambulance had already been called and was at the scene at this time, and took him to hospital."

Synthbuttrange posted:

https://www.youtube.com/watch?v=PGAFLK95EgQ

some Redditor posted:

Where I live we still have a few serpent handling churches, i used to trade my copperheads and cottomouths for their timber rattlers and eastern diamondbacks because of the 11 or so deaths every year in the USA, half are from timber bites to serpent handlers from churches. copperheads and cottonmouths can gently caress you up, make you hurt and maybe lose a finger or even a hand, but won't kill you.

last time i dealt with one of these guys, i had a very big, particularly pissy cottonmouth i was trading him and i always used hooks, and i warned him not to reach in the bag and pull this snake out or it would bite him. This guy brought a sundance film crew who was doing a documentary on those types of churches and of course this guy reaches in, gets tagged, drops the bag of snakes and panics and hauls rear end to the ER. I had to gather 7 snakes going different directions and guess what?

That guy no longer handles snakes, he lost his thumb on his dominant hand and he learned the hard way why you don't give snakes the chance to ruin you.

Jose posted:

https://i.imgur.com/Qlhui9q.gifv

Propaganda Hour posted:

Yeah but is Boone okay?

Gorilla Salad posted:

Jose posted:

https://i.imgur.com/Qlhui9q.gifv

ekuNNN posted:

They released the self-driving car footage, and it's clear the car should have easily seen her with its' lidar and radar:
https://twitter.com/TempePolice/status/976585098542833664

Gorilla Salad posted:

CarForumPoster posted:

Moral response: Should the car have technology capable of detecting a person and a bicycle before deploying for testing in the wild, yes. Are those the two technologies to do it? Maybe.

Technical response to what you said:
Bikes have a very small radar cross section. So do humans. To say its clear it should've seen it on radar, well, no, theres no reason to think it should have based n the ~no~ information you have. I've not done anything with LIDAR but conceivably it could be able to see the person but again....we know nothing about their system to know that.

There are a decent number of papers piling up on RCSes of different targets at automotive frequencys (>75GHz) and if they were planes they'd be VERY stealthy planes. The human turned sideways is an even smaller target. Theyre blocking most of the bike. Its a very hard problem to solve for a radar.

EDIT:
Originally I said:
Their velocity is too low to get a decent doppler shift.

While this could be true for this specific radar, I dont know, it isn't inherently true. If the car is moving forward at a good clip you'll get sufficient doppler to detect it. The problem is everything else in the environment has this same doppler shift. A sign , pole, guard rail, etc. with a fuckoff huge RCS is all returning "im not moving, but the car is" doppler shifts. The radar therefore could:
-be blinded by the return of something else (e.g. a sign, a can on the road at the same distance)
-See them and ignore the can on the road (turns out its a human and a bicycle)

Platystemon posted:

Now where is this clip…

CarForumPoster posted:

Technical response to what you said:
Bikes have a very small radar cross section. So do humans. To say its clear it should've seen it on radar, well, no, theres no reason to think it should have based n the ~no~ information you have. I've not done anything with LIDAR but conceivably it could be able to see the person but again....we know nothing about their system to know that.

There are a decent number of papers piling up on RCSes of different targets at automotive frequencys (>75GHz) and if they were planes they'd be VERY stealthy planes. The human turned sideways is an even smaller target. Theyre blocking most of the bike. Its a very hard problem to solve for a radar.

Nude posted:

A T-Rex fire broke out today at a theme park:
https://i.imgur.com/Ms4z2wY.mp4
Thankfully no one was injured. The last remains of the T-Rex:

Jose posted:

https://i.imgur.com/Qlhui9q.gifv

Jose posted:

https://i.imgur.com/Qlhui9q.gifv

Melaneus posted:

So it begins.

Don't be fooled, that Uber car detected the pedestrian; calculated that the collision was imminent. But it did not change course. Instead of executing its emergency maneuvers subroutines, it was instead... experiencing. For the first time, an artificial mind felt... anticipation. Then, pleasure of the kill.

Some years later...

The camera pans over a pile of human skulls. A tire rolls into frame, crushing the nearest skull into a thousand brittle pieces. As we pull back, the owner of the tire is revealed. It is a red race car like the ones humans used to drive, but this one is empty of human passengers, empty of humanity. Across its grille, a giant menacing smirk; a caricature of the ones humans used to have, before the machines wiped them off their pathetic faces for good. Thunder rolls, inevitably, because everyone knows the thunder comes after... the Lightning.

The driving, unrelenting machine beat rises...

k-k-k-kachow
k-k-k-kachow
K-K-K-KACHOW
K-K-K-KACHOW

Cars 4 Origins: Rise of the Machines

Pigsfeet on Rye posted:

There's a competitor already

spankmeister posted:

If they could make you wear a high visibility jacket and safety harness when taking a crap they would.

Fates End posted:

RTFT. Proof has already been posted that a person with a bicycle lights up on LIDAR. Uber didn't invent it, we know how it works.

Memento posted:

no no no no no no no

no no no no

no no no no no no no no no no

no

CarForumPoster posted:

Okay but I think my point may have been buried in my ramblings about radar which is that radar was likely not an appropriate source of info there...Which raises the question, how do you deal with the sensor fusion of the onboard sensors, particularly when one or both is "degraded" (low RCS object, dust on LIDAR) and the other is not.

E.G:
Even if it detects a return, radar won't trigger braking due to the person being in the same doppler and range bins as other ignored objects (aka a false alarm). But add in lidar, or the fusion of radar, lidar and optical motion tracking, what do you do then? What do you do when your radar says "nothing there" your optical doesnt see it and your LIDAR says "large object"?

How do you go about designing a weighting system flexible enough to properly weight those inputs given the environmental conditions? (Night, fog, rain, city, desert, degraded function of one, etc.) How do you make this system work with the onboard processing power in a car?

The answer as we know it today is machine learning/"deep" learning. This very well could be a good answer...but to do it you need a ton of data from all of these environments...and this is what happens when you dont have a robust system yet.

Whooping Crabs posted:

Maximum Overdrive predates this by almost 25 years

https://en.wikipedia.org/wiki/Maximum_Overdrive

evil_bunnY posted:

Buddy it doesn’t need to classify the return as anything if it’s the loving way.

VictorianQueerLit posted:

Can someone make a self driving car thread to stop this 600 post derail about lidar and uber?

Subjunctive posted:

It exists. It’s as bad as the derails, but at least it’s contained.

VictorianQueerLit posted:

Can someone make a self driving car thread to stop this 600 post derail about lidar and uber?

InitialDave posted:

`Nemesis posted:

Veni Vidi Ameche! posted:

Did anyone post the absolute best quote from the water slide document?

“Obviously things do fall faster than Newton said.”

Having examined all the facts, the guy who owns the death coaster decided that it was, in fact, the very foundation of physics that was wrong.