this post was submitted on 16 Mar 2025
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I have another idea: echolocation and laser measurement.
Echolocation is specifically audio based.
Lidar is a similar technique, but much more accurate and precise.
Project a grid of laser beam, read when the laser bounces back, you know the distance to that part of the grid.
I don't know the value of echolocation in this case, as I'm generally ignorant here, but it's straight wild to me that they went purely on visuals.
Tesla used to also have radar (and maybe lidar?) but they removed it as a cost cutting measure. If you ever see older videos of a Tesla slowing down or stopping due to a potential collision a few cars ahead, that's from before they switched to only relying on cameras. The collision avoidance was significantly better back then.