[derekp7]

This is something I don't understand. If you have more than 1 camera, you can run an edge detection algorithm on the images from each camera and use simple trig to build up a 3d model of what is in front of the car. This can easily distinguish between a shadow or road kill, vs a large object in the way. Is there a technical reason they don't do this (such as too much processing power required)?

[rcxdude]

You are trivialising the problem. Getting reliable data from stereo images is still far from solved, especially in realtime. (Also, the best currently available techniques are likely too computationally expensive to run on the compute that Tesla has put in the car).

[fabianluque]

You can clearly see here (https://www.youtube.com/watch?v=ROHW3sm2j0g) that Autopilot is detecting moving, stationary, stopped and oncoming vehicles.

There could be situations where this does not work accurately and that's when problems occur. If you watch closely you can even see it sometimes in this video.

[kevin_thibedeau]

Works 95% of the time is not good enough.