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It is, in fact, illegal for a human to drive in California with vision comparable to the Tesla HW3 cameras. California minimum vision requirement to operate a
by Veserv 1y ago
It is, in fact, illegal for a human to drive in California with vision comparable to the Tesla HW3 cameras.
California minimum vision requirement to operate a vehicle is 20/40 vision [1] which corresponds to a arc resolution of 30 pixels per degree of field of view [2].
HW3 cameras have a horizontal resolution of 1280 pixels [3]. There are three front-facing cameras with field of view (120, 50, 35 degrees) and different focal lengths with optimal distance (60, 150, 250 meters) placed next to each other preventing usage of binocular vision meaning their front-facing cameras are “one-eye” driving.
The cameras have a arc-resolution of ~11 pixels per degree up to 60m, ~25 pixels per degree up to 150m, and ~36 pixels per degree up to 250m. That corresponds to ~20/120 below 60m, ~20/50 at 150m, and ~20/30 at 250m.
In comparison, you are considered legally blind if operating with 20/200 vision which their below 60m camera just barely surpasses. Up to 150m, their cameras fail to meet minimum vision requirements to operate a vehicle in California.
Even on HW4, the 120 degree camera for below 60m, which is the majority of complex high-acuity maneuvers, only has a horizontal resolution of 2896 pixels which is only ~24 pixels per degree corresponding to ~20/50 vision which is below the minimum vision requirements in California.
[1] https://eyewiki.org/Driving_Restrictions_per_State https://eyewiki.org/Driving_Restrictions_per_State
[2] https://en.wikipedia.org/wiki/Visual_acuity https://en.wikipedia.org/wiki/Visual_acuity
[3] https://www.blogordie.com/2023/09/hw4-tesla-new-self-driving-hardware https://www.blogordie.com/2023/09/hw4-tesla-new-self-driving...
- steveBK123 1y agoIt's crazy cuz my 2022 BMW has 4k front facing camera (2x the brand new Tesla HW4 resolution), on top of the array of other cameras + 5 radar modules.. and.. they don't pretend they can FSD with that. My car just has really really good highway ADAS. Which is all that most people need.