this post was submitted on 23 Mar 2025
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[–] gigachad 16 points 3 days ago (3 children)

It's weird, an optical sensor should fall for this, but LiDAR detects objects in 3D.

[–] [email protected] 81 points 3 days ago (1 children)

Teslas famously don't use lidar because Musk declared that cameras were good enough. Reality disagrees, but reality owns no shares of Tesla.

[–] [email protected] 40 points 3 days ago (2 children)

Musk declared that cameras were good enough

And then disabled existing lidar sensors in teslas, so his team could just focus on camera vision only

[–] [email protected] 6 points 3 days ago

I believe he disabled radar, I'm not sure tesla ever had lidar. Radar would solve this problem anyway.

[–] [email protected] 6 points 3 days ago

He’s a dumbass

[–] [email protected] 25 points 3 days ago (2 children)

Yea, to my understanding Tesla does not use LiDAR and that's the issue. They just use cameras I think. Other people posted videos in this thread: https://m.youtube.com/watch?v=IQJL3htsDyQ

I can't be bothered to care/watch anything Tesla related, but apparently the lack of lidar is the thing being tested.

[–] [email protected] 9 points 3 days ago (1 children)

The first ten minutes is him "sneaking" in a small lidar unit to Disneyland be using it to make 3d models of the ride path. That's pretty fun.

[–] [email protected] 4 points 2 days ago

Thanks for letting me know. I watched that and ended up watching the rest of the video. It was actually a pretty fun watch.

[–] [email protected] 4 points 2 days ago

Elon musk dint want lidar because it cost too much, any tesla before 2018 had it, but it introduced update to brick all off them.

[–] [email protected] 5 points 3 days ago

A decent camera only vision system should still be able to detect the wall. I was actually shocked at the fact that Tesla failed this test so egregiously.

If you use two side by side cameras you can determine distance to a feature by calculating the offset in position of the feature between the two camera images. I had always assumed this was how Tesla planned to achieve camera only FSD, but that would make too much sense.

https://www.intelrealsense.com/stereo-depth-vision-basics/

Even if they wanted to avoid any redundant hardware and only go with one camera for each direction, there is still a chance they could've avoided this kind of issue if they used structure through motion, but that's much harder to do if the objects could be moving.

https://en.m.wikipedia.org/wiki/Structure_from_motion