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Tesla bought over $2M worth of Lidar from Luminar

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Re: Tesla bought over $2M worth of Lidar from Luminar

#31

Earlier quoted context omitted.

Why would they not simply use lidar in the cars themselves? Besides, I imagine many of the issues with vision (e.g. adverse weather) could not be addressed with training-time data.

> Besides, I imagine many of the issues with vision (e.g. adverse weather) LIDAR is bad in rain, fog and snow.

So are cameras.

Re: Tesla bought over $2M worth of Lidar from Luminar

#34

Musk used to argue that since humans can drive without Lidar, cars could as well.

That was always a stupid argument because if you replicate how humans do it, you're going to replicate our failure modes too. Things like being crappy at night driving, subject to optical illusions, etc.

I can assure you that a human with LIDAR and RADAR built in would get around even better than without.

Re: Tesla bought over $2M worth of Lidar from Luminar

#37
My reading is this is only for their own taxi fleet. $2M at $1000 per car = 2000 cars.

Waymo has fully autonomous self driving that actually works for their taxi fleet. Waymo uses lidar. Tesla building a taxi fleet, Tesla now needs to spring the extra dosh for a bit of lidar.

Re: Tesla bought over $2M worth of Lidar from Luminar

#38
post #6

In order to make vision-only depth sensing work well, you need ground-truth data. Buying a few thousand lidar to get a ton of ground-truth training data for the NN to learn distance on its own from vision is an obvious move. They're not switching to Lidar. source: i debugged lidar and built localization and behavioral planning algorithms for self driving cars

If you had multiple cameras for stereoscopic vision. Couldn't you figure out the depth data vision only without lidar? I'm sure there was a good reason Tesla didn't go with a stereoscopic camera system (at least front facing) from the get-go.. they already have 3 cameras up there with 3 FOVs. Could add another camera there in a stereo setup for depth data.

Re: Tesla bought over $2M worth of Lidar from Luminar

#39

Earlier quoted context omitted.

Why would they not simply use lidar in the cars themselves? Besides, I imagine many of the issues with vision (e.g. adverse weather) could not be addressed with training-time data.

Because $1000 of Lidar hardware per car would be $1.85 billion per year.

Take out of his 56B comp package

Re: Tesla bought over $2M worth of Lidar from Luminar

#40
post #6

In order to make vision-only depth sensing work well, you need ground-truth data. Buying a few thousand lidar to get a ton of ground-truth training data for the NN to learn distance on its own from vision is an obvious move. They're not switching to Lidar. source: i debugged lidar and built localization and behavioral planning algorithms for self driving cars

If you had multiple cameras for stereoscopic vision. Couldn't you figure out the depth data vision only without lidar? I'm sure there was a good reason Tesla didn't go with a stereoscopic camera system (at least front facing) from the get-go.. they already have 3 cameras up there with 3 FOVs. Could add another camera there in a stereo setup for depth data.

Isn't human stereoscopic vision only good for something like 20 feet or so? The cameras behind the rearview mirror are even closer together than that.
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