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Re: Multiple webcams

 
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  #21
Jul 28th, 2005
I forgot to say that the softwar using with the webcam is creative webcam monitor or creative PC-CAM :-|
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Re: Multiple webcams

 
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  #22
Jul 28th, 2005
Originally Posted by mel73
I forgot to say that the softwar using with the webcam is creative webcam monitor or creative PC-CAM :-|
Well, I've never used this program, but assuming it provides the full Windows interface, then there should be two options that you'd be interested in: Video Driver and Video Device or Source. One driver can handle two cameras, as long as the source is different. In some cases for cheap cameras, at least, they come up under the same drive and only one device. If your cameras are identical and use WDM or VfW, then you might have to ... i still don't know. If you're lucky enough to have CCD cameras, or any camera with its own driver, then you should be able to use those two settings to select both cameras.

Then, open a connection to each, and when the user presses a button or key, then tell both webcams to take a picture.

Note: the best I got was two different cheap cameras working together. A friend of mine got two very good cameras working together under Linux. Maybe Linux is the way to go. Maybe you should run this inside a linux environment for windows. I haven't been doing too much on the subject recently, but I may look into getting some good webcams, and maybe some real-time input for my stereovision code.
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Re: Multiple webcams

 
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  #23
Jul 29th, 2005
Hey I am working in the stereovision too!
I am sorry, but what WDM or VfW means? I haven't linux for the moment so may, but I can have even if I don't know use it. Could you ask your friend how he use it? :o
thanks
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Re: Multiple webcams

 
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  #24
Jul 29th, 2005
Originally Posted by mel73
Hey I am working in the stereovision too!
I am sorry, but what WDM or VfW means? I haven't linux for the moment so may, but I can have even if I don't know use it. Could you ask your friend how he use it? :o
thanks
I'm not very well versed in linux, either.

VfW stands for "Video for Windows". It's the old way of using video on windows. Almost all video capture sources use this, because it's easy to let Windows do all the work.

WDM stands for Windows Driver Model, i think. It's the new way. It actually uses a separate driver to decode the video stream. Most cheap camera's dont support it, but newer ones, who have their own drivers, should be able to use it.

Remember, I never really got this to work with identical cameras, so I'm just fumbling in the dark, sort of. :o But you can try opening two instances of your capture program and see if you can select the two different cameras in the Video Source or Video Format or Video Driver settings page.

As always, good luck. Let me know if your stereovision results are any good - mine, for real life, weren't. Too much static / JPEG compression. Hope yours come out better. :mrgreen:
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Re: Multiple webcams

 
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  #25
Jul 29th, 2005
my stereovision projet doesn't work very well too. I have to build again the shape of a wing to measure the deformation. and you? what is your purpose?
if I succeed to do something I will tell you.
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Re: Multiple webcams

 
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  #26
Jul 29th, 2005
Well i was doing it for terrain mapping for robot navigation. My software works well on test images, but I took some real pictures with a regular digital camera, but the JPEG compression was WAY too lososy, and the static threw off the calculations. For display purposes, I put two cameras into a USB hub and placed them next to each other, so it looked like it worked. Threw off a lot of people. But it was fun(ny). lol. :cheesy:
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Re: Multiple webcams

 
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  #27
Jan 23rd, 2006
I was looking for the exact thing this post couldn't tell me.
So here's my solution.

I have two Kodak EZ200 Webcams. My computer has 3 sets of USB 2.0 ports. I plugged each cam into a seperate "hub/channel."

I use the software "ConquerCam" v2.1.1
When you start it asks you which video source you want to use. It also detects video sources that are in use, and removes those from the list.

So select your 2 cameras, setup 2 different FTP settings (or local).

Then I wrote a nifty PHP script to merge the 2 files together into one image.

http://jan23.imghost.us/gdtrco.jpg - left cam
http://jan23.imghost.us/jrrsuc.jpg - right cam
http://jan23.imghost.us/voxnxs.jpg - both images merged, I could have tried better to get them to match

If anyone is interested in a webcam hoster especially one that can provide this service. Send me a PM
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Re: Multiple webcams

 
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  #28
Feb 24th, 2007
Hi All,

A newbie to this forum. I am a retired computer engineer and have recently started learning to program using native C WIN32 API. I have written some programs using Multi Web Cams. You can download the free programs and VFW tutorials from my web site at :- http://uk.geocities.com/ecafin/index.html

Regards to All

Eric132
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Re: Multiple webcams

 
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  #29
Apr 9th, 2007
Originally Posted by Eric132 View Post
Hi All,

A newbie to this forum. I am a retired computer engineer and have recently started learning to program using native C WIN32 API. I have written some programs using Multi Web Cams. You can download the free programs and VFW tutorials from my web site at :- http://uk.geocities.com/ecafin/index.html

Regards to All

Eric132
Don't we just live ourself, Keep talking talking, But no one will try it. I just have 2 webcam install on my Windows Xp and they are both working. Both Webcam are the same.
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Re: Multiple webcams

 
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  #30
May 23rd, 2008
Hiya, just read your post... I too am looking for multiple webcams for an 8 player poker match where the webcams are placed inside the table!

Anyways how about this program to run the webcams....

http://www.tincam.com/

not sure about capturing the imagry yet but I'll let you know

Cheers
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