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- Newsgroups: sci.environment
- Path: sparky!uunet!stanford.edu!agate!overload.lbl.gov!s1.gov!lip
- From: lip@s1.gov (Loren I. Petrich)
- Subject: Re: Computer controlled cars (was re: high-tech highways)
- Message-ID: <1992Jul28.163531.13149@s1.gov>
- Sender: usenet@s1.gov
- Nntp-Posting-Host: s1.gov
- Organization: LLNL
- References: <55138@mentor.cc.purdue.edu> <1992Jul28.002243.25281@news.eng.convex.com>
- Date: Tue, 28 Jul 1992 16:35:31 GMT
- Lines: 31
-
- In article <1992Jul28.002243.25281@news.eng.convex.com> jjensen@convex.com (James Jensen) writes:
- >Someone wrote:
- ::::Well, as a previous poster pointed out, most of the nations commercial
- ::::airlines fly automated systems.
-
- :That may be true, but the the environment that these systems deal with
- :is orders of magnatudes simpler than surface streets. A robo-car
- :will have to be able to determine that a child that is about to run out
- :into the street as well as a human driver. The last I heard computer vision
- :wasn't anywhere near to this.
-
- I did once see a demonstration of a computer system that did
- manage to learn to drive -- a neural-net-based system. A (human)
- driver drove a van containing the computer and various sensors around,
- and the computer "learned" how to do it; it was then able to drive the
- van around a bit. The demonstration was on a road where there were
- nothing else there, however. On the documentary I saw, I didn't find
- out if there was any effort to find out what cues the computer used
- (it used input from a camera, among other things) to keep the van on
- the road, although I'm sure that that could have been done.
-
- I certainly agree that driving on a road with other vehicles
- or with people in it is a much more difficult problem, if one has to
- actually identify the vehicles from visual input. Successful
- automatically-controlled vehicles to date have usually avoided this
- problem by using simplified version of other-vehicle detection;
- airplanes have collision detectors that respond to any large object in
- the airplane's path, for example. Automatic train control usually
- works by dividing a trackway into "blocks", with a central scheduler
- allowing only one train in a block at a time.
-
-