IIRC, the autonomous cars all use a LIDAR system (kind of radar) to detect objects, and do not fully rely on computer vision.<p>Also, here&#x27;s ([1]) an article about a student who (single-handedly!) wrote the software for a self-driving car, which doesn&#x27;t use a LIDAR system and is much cheaper.<p>[1] <a href="http:&#x2F;&#x2F;www.nbcnews.com&#x2F;technology&#x2F;students-self-driving-car-tech-wins-intel-science-fair-1C9977186" rel="nofollow">http:&#x2F;&#x2F;www.nbcnews.com&#x2F;technology&#x2F;students-self-driving-car-...</a>