Subject:
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Re: Line Following by Humans versus Bots
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 16 Nov 1999 16:58:09 GMT
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Original-From:
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Stefano Franchi <franchi@csli.Stanford.EDU>
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Viewed:
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541 times
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> Luis Villa wrote:
> >
> > I wish I had time to post more on this right now, but suffice it to say
> > there has been a lot of research on how humans and animals do this type
> > of thing. Staying within a hallway without bumping into the walls is
> > actual done by taking a mental snapshot and comparing it to the next
> > "frame"- in that way, we determine the relative motion of each of the
> > areas we are looking at, and attempt to make those relative motions fit
> > our ideas of what we should see (i.e., they should both be moving the
> > same amount if we are going down the center of the hall, left wall should
> > be moving more if we are turning left, etc.)
> >
> > The experiments that have done to "prove" this have been done mainly on
> > flies. By putting them in a "hallway" where one wall is actually moving
> > (scrolling, IIRC) they tend to turn towards or away from that wall, as
> > appropriate.
> >
> > I can't find any URLs at the moment, but if you want to search for it,
> > the technical term for what we produce is a "flow field" because we are
> > determining how objects around us are "flowing." Look for that and see
> > what you can find.
>
> Fascinating, I tried the search but unfortunately nothing related turned
> up.
Although it's an "old" book now by scientific standards, Valentino
Brateiberg's Vehicles (MIT press I believe, still in print) contains a
clear and accessible discussion of this topic, plus reference to the
standard literature. I suppose you may then proceed from there. And it's
required reading for any RCX'er anyway...
_________________________________________________________
Stefano Franchi
Department of Philosophy Phone: Off: (650) 723-0855
Stanford University Home: (650) 497-2812
Stanford, CA 94305 Fax: (650) 723-0985
USA
e-mail: franchi@csli.stanford.edu
http://spiel.stanford.edu
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Message has 1 Reply:
Message is in Reply To:
 | | Re: Line Following by Humans versus Bots
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| I wish I had time to post more on this right now, but suffice it to say there has been a lot of research on how humans and animals do this type of thing. Staying within a hallway without bumping into the walls is actual done by taking a mental (...) (25 years ago, 16-Nov-99, to lugnet.robotics)
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