Subject:
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Re: Stereo Vision
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 10 Aug 2000 23:38:59 GMT
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Viewed:
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1844 times
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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:
> Hi
> As you may know my current project has everything to do with image
> recognition.
> 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!
> Then I figured that the only way to do that with just one camera was if I can
> place a set of mirrors in the front to the camera and split vertically the
> image in two, each set of mirrors giving an image a few centimeters apart.
> Then all I have to do is to compare the left and the right parts of the images
> and find the differences between them.
> Any thoughts about that?
Always! You can rely on me to have thoughts. No guarantees about the
usefulness of my thoughts, however. Use at your own risk.
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).
>
> Laurentino Martins
>
> [ mailto:lau@netcabo.pt ]
> [ http://www.terravista.pt/Enseada/2808/ ]
>
>
--
Doug Weathers, http://www.rdrop.com/~dougw
Portland, Oregon, USA
Don't spam me - I know how to use http://www.spamcop.net
"On a clear disk you can seek forever"
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Message is in Reply To:
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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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