Subject:
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Re: XCam2 as replace for Vision Command?
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Mon, 8 Jan 2001 19:45:43 GMT
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Viewed:
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1923 times
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Pinnacle Systems has a USB video capture device which allows one
to capture the analog video signal. Works great with software like
the Exploration Mars software, which just checks if you have a video
input of some sort.
Vision command, however, seems to be taking advantage of the
Logitech QuickCam SDK capabilities, so it seem that VC, at least,
is compatible only with the VC Camera.
Interestingly, LEGO Studios also uses a LogiTech Quickcam, but
the software there appears to be provided by Pinnacle Systems,
probably a simplified version of PC Studio...
-Peter
"John Barnes" <barnes@sensors.com> wrote in message
news:4.2.0.58.20010108100254.01933640@mailserver...
> There seems to be a common misconceptionPio that all cameras are equal!
>
> They are not. The kind of interface commonly found in webcams and the
> Lego cam are USB based digital ones which are supported by the O/S
> and deliver digitised images as bits maps to applications trying to • process
> the imagery. All the other kinds of "video" cameras* generate a "video"
> signal which, allowing for international borders, is typically a raster • based
> analog signal which at the very least requires a frame grabber to get it
> into digital format. I have not yet seen a frame grabber product which
> advertises itself as a drop in replacement for USB digital video - I might • be
> wrong.
>
> It is my assumption that you will not have any luck with Lego's Vision • Command
> software without a USB type camera.
>
> JB
>
> (* I understand that there are some digital devices like the Sony digital
> camcorders
> which don't exactly fall into this category, but they are not USB
> compatible either.)
>
> > Has anyone experience in using the wireless XCam2 as a replace for Vison
> > Command. I was interested in Vision Command but did't buy it because the
> > camera is always connected to the PC via a cable. With XCam2 you could • build
> > a robot that could almost act on its own without beeing physically • connected
> > to the PC. I guess the cable will not be a good advantage for your • robot's
> > motion. You can use XCam2 with batteries so you have a compact robot with • no
> > wires connected to it.
> > The second point is to get the Vison Command software to use it with • XCam2.
> > Does anyone know where to get only the software? I wonder if it can be • used
> > with another cam at all...
> >
> > Fabian
>
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Message has 1 Reply:
 | | Re: XCam2 as replace for Vision Command?
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| (...) All of Lego's Software (Besides Exploration Mars) requires the LEGO Cam. This is not a requirement. It's so you don't pirate the software. It's most annoying that I can't use my pro cams for any of it. There are some nice features... It has (...) (24 years ago, 9-Jan-01, to lugnet.robotics.rcx)
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Message is in Reply To:
| | Re: XCam2 as replace for Vision Command?
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| There seems to be a common misconception that all cameras are equal! They are not. The kind of interface commonly found in webcams and the Lego cam are USB based digital ones which are supported by the O/S and deliver digitised images as bits maps (...) (24 years ago, 8-Jan-01, to lugnet.robotics.rcx)
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