Subject:
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Re: Working motorized focus for Vision Command
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 18 Dec 2002 16:15:54 GMT
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Viewed:
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1227 times
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I have no idea how to access the camera from a programming language, nor do
I have any experience in raw vision proccessing. Do you know how to do any
of these previously meantioned?
Timothy
In lugnet.robotics, Steve Baker <sjbaker1@airmail.net> writes:
> Bluey wrote:
>
> > I was thinking of the same procedure. But to help with the varried depth
> > problem, a small part of the viewed area could be selected to be the
> > focusing point.
>
> Yes - that'll also make the algorithm run faster.
>
> > So overall, it must be possible, right?
>
> I'm sure it's possible. What I'm not sure about is whether the kind
> of naive algorithm that I could come up with after just a few minutes
> thought would be effective. It might take some rather serious image
> processing algorithms to get a measure of how well focussed the image
> is - and that might be a major learning experience!
>
> Good Luck! Tell us what works.
>
> ---------------------------- Steve Baker -------------------------
> HomeEmail: <sjbaker1@airmail.net> WorkEmail: <sjbaker@link.com>
> HomePage : http://web2.airmail.net/sjbaker1
> Projects : http://plib.sf.net http://tuxaqfh.sf.net
> http://tuxkart.sf.net http://prettypoly.sf.net
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Message has 2 Replies:
 | | Re: Working motorized focus for Vision Command
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| (...) No problem. The VC camera is a repacked Logitech. You can get a free quickcam SDK from the Logitech homepage. With that, you can program the camera under Windows. If you want to use Linux, things get a bit more complicated. You could use (...) (22 years ago, 18-Dec-02, to lugnet.robotics)
| | | Re: Working motorized focus for Vision Command
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| (...) Timothy, One source of inspiration for the focusing algorithm is to look at codes that expand the depth of focus by stitching together the in-focus portions of multiple images. This is used in microscopy quite a bit. The software has to be (...) (22 years ago, 18-Dec-02, to lugnet.robotics)
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Message is in Reply To:
| | Re: Working motorized focus for Vision Command
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| (...) Yes - that'll also make the algorithm run faster. (...) I'm sure it's possible. What I'm not sure about is whether the kind of naive algorithm that I could come up with after just a few minutes thought would be effective. It might take some (...) (22 years ago, 18-Dec-02, to lugnet.robotics)
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