From: utzoo!decvax!harpo!floyd!stan
Newsgroups: net.med
Title: Depth Perception
Article-I.D.: floyd.1116
Posted: Tue Jan 25 14:02:44 1983
Received: Fri Jan 28 01:21:05 1983



Depth perception by triangulation is not used for objects beyond
about 20 feet away.  At that distance and beyond, one judges distance
by the size of an object or its rate of change of size.

I think it's safe to say that no one uses "two eye" depth perception
for driving.

		Stan King			phone: 201-386-7433
		Bell Labs, Whippany, NJ		Cornet:  8+232-7433
		room 2A-111			uucp:	 floyd!stan