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Old 07-11-2016, 12:09 PM   #1
Beest
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Here is an analysis from an SAE discussion group, the vision system used would not pass a basic drivers eye exam.
I can try and download the example pictures if anyone is interested.

Quote:
My concern is the instrumentation is substantially inferior to a human. For instance, the forward looking camera in the Tesla is HD resolution (1280x720) with a wide angle lens that has a 5.6 arc-min resolution per pixel, compared to a human which has 1 arc-min. Or to put in human terms, the Tesla auto-pilot would fail the DMV vision test. I estimate the Tesla has 20/110 vision, or in other words it can see the big E at the top of the eye chart, but will make a couple mistakes on the second line.

In the Florida accident, the Tesla came over the crest of the hill just under 1/2 mile (2250') from the truck. If it were a human driving, when cresting the hill it would be obvious that a large tractor-trailer is crossing in front of them. The human would let off the gas, and give the truck the extra 5 seconds in needed to clear the intersection. But for the computer the truck is a 8x3 pixel blob at 2250'. At 1/4 mile, it's still an unidentifiable blob -- 15x4 pixels, something is there, but not enough data to identify it. At 1/8 mile, there's finally enough data (30x8, 240 pixels) to identify it's a truck in optimal conditions. It's not till 500ft, the computer can clearly identify it's a truck, but the writing/text on the trailer would still be blurry. At 250ft, only the largest letters (>4ft tall) on the trailer would be legible. Not until 100ft, is there any detail. Attached below is a simulation of what a tractor-trailer looks like.
When all vehicles are autonomous they called all be linked, sharing position and velocity data with every vehicle in the vicinity, they wouldn't have to see, but would know where every vehicle is, and where it will be, avoiding an event like this.

Last edited by Beest; 07-11-2016 at 12:18 PM.
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Old 07-11-2016, 05:04 PM   #2
footfootfoot
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Originally Posted by lumberjim View Post
this right here is enough to keep one of those cars out of my driveway:
Quote:
"We're talking about owning an object, which you interact with every day, knowing that this object might decide to kill you in certain situations."
Cats, in other words.
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Old 07-11-2016, 05:10 PM   #3
xoxoxoBruce
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That's it, big dangerous mechanical cats.
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Old 07-11-2016, 12:23 PM   #4
lumberjim
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Unless a cow crosses the street. mooooO!!!
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Old 07-11-2016, 12:52 PM   #5
Undertoad
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The problem is that the Tesla doesn't have LIDAR. When it does it will be able to "see" everything, way better than humans... look for the thingie on top of the roof...

https://techcrunch.com/2016/07/07/a-...und-palo-alto/

...although Musk has said you don't even necessarily need LIDAR to do self-driving vehicles...
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Old 07-11-2016, 04:06 PM   #6
xoxoxoBruce
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The fly in the ointment is the Police use LIDAR and are likely to fight that because it will fuck up their enforcement.
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Old 07-11-2016, 11:12 PM   #7
BigV
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Originally Posted by Griff View Post
I feel like I was safer in my very touchy CJ-7 bitd. I had to be alert and on task.

Tesla Crash
And now, a second crash.
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Old 07-11-2016, 11:54 PM   #8
Clodfobble
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Maybe.

Remember when Toyota was found to have some rare defect with the accelerator pedal, and suddenly every idiot with a fender-bender tried to claim it wasn't their fault?
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Old 07-12-2016, 12:01 AM   #9
xoxoxoBruce
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In this case it's easy to check, there's a complete record of what the car was doing, and who was in control when it crashed.
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Old 07-12-2016, 09:25 PM   #10
tw
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Other manufacturers have been testing their systems by only testing the 'we see it and hit the brakes' feature. That way, consumers would not act too dependent on the feature. Why did Telsa tell consumers it would do more? Beta testing is about not promising too much while learning from oversights - when it fails to do more than what was expected.
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Old 07-13-2016, 12:07 AM   #11
xoxoxoBruce
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It's great, they are killing rich assholes, it's a shame tw only half qualifies.
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Old 07-13-2016, 01:53 AM   #12
Clodfobble
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Every time I see this thread, I misread it as "Nice safe autoimmune cars."
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Old 07-13-2016, 07:35 AM   #13
Griff
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Old 07-13-2016, 08:39 AM   #14
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I'd like to see something that prohibits dickdom.
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