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two same type cameras via USB

asked 2013-11-28 01:59:20 -0600

tucna gravatar image

updated 2013-11-28 02:15:01 -0600

Hello,

it is possible to use in OpenCV two same cameras (same model) via USB simultaneously? I am using python in Windows, and it seems that there is some problem with that.

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and the problem is ?

berak gravatar imageberak ( 2013-11-28 02:17:05 -0600 )edit

For example, if I try to use internal webcam (A) and USB webcam (B) everything is ok. Program is running and fully functional.

But if I try to use USB webcam (B1) and the same model for second USB (B2) the same source code doesn't work at all and python generate some type of error message. I don't have a code currently, but I can add it later.

My question is more like general - it possible to use two same model webcams via USB and OpenCV? In case that yes, some piece of code would be great.

tucna gravatar imagetucna ( 2013-11-28 02:26:48 -0600 )edit

yes, please edit your question, add the code & the error msg you get.

berak gravatar imageberak ( 2013-11-28 04:30:52 -0600 )edit
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It looks like some problem in camera drives but not in OpenCV. There is no difference for OpenCV cameras have the same model or not. It just enumerate existing camera devices.

Alexander Smorkalov gravatar imageAlexander Smorkalov ( 2013-11-28 04:52:31 -0600 )edit
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Yes, it seems like drivers to me, this is why I am asking in that general way. If someone faced this problem too and found solution.

But I will update the question, thank you.

tucna gravatar imagetucna ( 2013-11-28 06:41:38 -0600 )edit

excuse me. I have the same problem. I wanna know how did you handle it at the end??

german_iris gravatar imagegerman_iris ( 2016-01-22 06:06:36 -0600 )edit
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^^ a usb2 slot can barely handle the throughput of a single webcam. for 2 of them, try at least to plug them into different usb hubs, like one in the front, and one in the back.

berak gravatar imageberak ( 2016-01-22 06:16:57 -0600 )edit

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answered 2016-01-23 00:23:48 -0600

german_iris gravatar image

oh,my gosh.It do works very well. I used the laptop. when I plug one of them into usb3.0 and another one into usb2.0, the amazing thing happend. thx a lot. :)

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Asked: 2013-11-28 01:59:20 -0600

Seen: 352 times

Last updated: Nov 28 '13