> Put Lidar in there and just get it right. Stop w/ this non-sense.
This is a popular refrain among people who are not studying Tesla’s progress particularly closely, and/or are unfamiliar with the utility LIDAR actually provides. Tesla FSD still has some way to go before it is ready to be a properly autonomous robotaxi — but where it's failing are not areas where adding LIDAR would help.
Tesla's vision stack is already sufficiently capable of mapping the three-dimensional environment with sufficient precision.
Tesla FSD needs better planning strategies when faced with unusual obstructions like novel construction zone diversions. Adding LIDAR wouldn't help there. Tesla FSD desperately needs more road sign reading skills. LIDAR can't read road signs. Tesla FSD will eventually need to recognise law enforcement officers and respond to hand gestures. LIDAR cannot translate hand gestures into actionable driving instructions, and certainly can't assess the plausibility that the person is a LEO.
> Lidar's are excellent at verifying that the 3d model map is correct.
IIRC Tesla does use LIDAR in their test vehicles to measure the ground truth of their 3D model maps. They just don't do that with every single car on the road.
Certainly that is the current Tesla PR spin that their vision stack is good enough to not need it, but it is hard to see why LIDAR wouldn't be useful for defense in depth against the situations like people tricking Teslas into painted tunnels like Wile E. Coyote. Especially when we all know the reality is that LIDAR is extremely patent protected and expensive to buy because of that and Tesla dropping LIDAR was pure cost cutting.
(Self-driving seems to me to be somewhere you absolutely want as much defense in depth and redundant sensors as possible.)
I'd like to see someone exposing a Tesla to a intricately produced Wile E. Coyote tunnel. I would predict that it would stop, because the vision stack leans heavily on motion vectors to map out drivable space. And even if it didn't, the tunnel could only be painted to have the correct perspective at one point along the road. Moving closer would result in the model seeing the road get narrower, causing the car to slow down (narrower roads necessitate slower speed) until it gets within a few car lengths — at which point the painted road would appear so narrow as to be literally undriveable.
If Tesla hasn't already tested this in simulation, I'd be astounded.
Also if a false tunnel good enough to fool FSD beta, I'd suspect it'd also be good enough to fool a decent proportion of human drivers too.
This is a popular refrain among people who are not studying Tesla’s progress particularly closely, and/or are unfamiliar with the utility LIDAR actually provides. Tesla FSD still has some way to go before it is ready to be a properly autonomous robotaxi — but where it's failing are not areas where adding LIDAR would help.
Tesla's vision stack is already sufficiently capable of mapping the three-dimensional environment with sufficient precision.
Tesla FSD needs better planning strategies when faced with unusual obstructions like novel construction zone diversions. Adding LIDAR wouldn't help there. Tesla FSD desperately needs more road sign reading skills. LIDAR can't read road signs. Tesla FSD will eventually need to recognise law enforcement officers and respond to hand gestures. LIDAR cannot translate hand gestures into actionable driving instructions, and certainly can't assess the plausibility that the person is a LEO.