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I'm the side of LIDAR is a crutch. Not only is it crazy expensive and has many moving parts, but the sensor input is a bunch of dots. One has to have cameras an

by nojvek 4y ago

I'm the side of LIDAR is a crutch. Not only is it crazy expensive and has many moving parts, but the sensor input is a bunch of dots. One has to have cameras anyway for the high density vision input. With newer algorithms, you can stitch multiple cameras to reconstruct a scene and semantically identify important objects. I do like what Tesla is doing with its new voxel neural net. Yeah it will take a few more years, but the hard problems are doing what our visual cortex does with two cameras (our eyes). Also keep in mind a car has multiple cameras around to give full 360 view. They also sense in IR range that our eyes do not.

samwillis 4y ago
Teslas vision based system makes a prediction of what the environment around it is, how far away things are. A LIDAR based system knows with certainty how far way things are. LIDAR may be expensive now, thats not to say it won't get cheeper, with fewer parts. But the main issue is a social one, I don't think the public will except any fatalities as a result of a vision based system making a mistake. Even if the deal rate from accetends is lower than with a human driver. A self driving car can't be 50% better, or even 200% better it needs to be thousands of times better than a human driver for it to succeed. I think the certainty of a LIDAR baed system is the only way to do that. An AI based vision system is Tesla saying that can make a "brain" better than a human at understanding vision. LIDAR is saying, humans can't measure how far away things are, we can do better than humans by doing something they can't.
rootusrootus 4y ago
> I'm the side of LIDAR is a crutch. Not only is it crazy expensive and has many moving parts Newer lidar units are orders of magnitude cheaper, and solid state. If I could only choose between a camera and lidar, I'm going with the latter.

by nojvek 4y ago

samwillis 4y ago

Teslas vision based system makes a prediction of what the environment around it is, how far away things are. A LIDAR based system knows with certainty how far way things are. LIDAR may be expensive now, thats not to say it won't get cheeper, with fewer parts. But the main issue is a social one, I don't think the public will except any fatalities as a result of a vision based system making a mistake. Even if the deal rate from accetends is lower than with a human driver. A self driving car can't be 50% better, or even 200% better it needs to be thousands of times better than a human driver for it to succeed. I think the certainty of a LIDAR baed system is the only way to do that. An AI based vision system is Tesla saying that can make a "brain" better than a human at understanding vision. LIDAR is saying, humans can't measure how far away things are, we can do better than humans by doing something they can't.

rootusrootus 4y ago

> I'm the side of LIDAR is a crutch. Not only is it crazy expensive and has many moving parts Newer lidar units are orders of magnitude cheaper, and solid state. If I could only choose between a camera and lidar, I'm going with the latter.