Subject:
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Re: Stereo Vision (aka mirrors)
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 11 Aug 2000 09:50:44 GMT
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Original-From:
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Marco C. <marco@soporcel.SPAMCAKEpt>
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Viewed:
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1426 times
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At 23:38 10-08-2000 GMT, Doug Weathers wrote:
> in article 4.3.2.7.0.20000810105740.00b35ff0@mail.marktest.pt, Laurentino
> Martins at lego-robotics@crynwr.com wrote on 8/10/00 3:05 AM:
> > I was reading one tread in this newsgroup and suddenly it struck me that • many
> > of the problems I currently have in finding the contours of the objects • can be
> > overcome it I have stereo vision!
> > Any thoughts about that?
> You might be able to save yourself some trouble with mirrors if you mount
> the camera to one side instead of in the middle.
> . .
> \ . \ .
> \....\ .
> \ . \ .
> . .
> ##### <-- camera lens
> Let the unmodified image fall on half of the lens, and cover up the other
> half with the center mirror. You can move the outside mirror away from and
> towards the middle to change the separation between your "eyes" to give you
> better stereo separation.
> If you motorize this and control it from your robot, you can compare the
> scene at different settings and figure out the relative distance of the
> various objects in the scene (assuming you can distinguish the objects with
> your software).
Cool :) that might work too, and save about the other half of material to
be used (+2 mirrors, +1 motor, +1 angle-sensor).
er... I feel like having "my" solution simply slashed in the middle ;) eheheh
This is really all about having an horizontal periscope. In the first case
two, in this case, only one. If it proves a workable solution, it's, of
course, a cheaper solution (and that's *always* welcome ;)
I'm curious about the effect of having a one moving and one fixed "eye".
Talking about mirrors, one of my recent experiment, was putting a Camcorder
in vertical posicion, and on the top, having a 45º mirror (taken from a
toy-periscope) with 360º rotation freedom controlled by my CyberMaster. It
was kewl. Less hassle with moving parts (mirror's lighter than the cam ;)
no cable problems, etc...
This mirror controlling stuff is something I'll get back to, in the future,
cause it consumes much less battery, and the mechanics tend to become
simpler, because of smaller and lighter object to control (the mirror).
____________________
Marco C. aka McViper
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Message is in Reply To:
 | | Re: O'Reilly book news
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| (...) I hope people don't get too worked up about all of this. I assume TLC decided to put links on their site, then someone had the idea that if they used an associate link, they'd get a little extra income. From their perspective, why not take (...) (24 years ago, 8-Apr-00, to lugnet.robotics)
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