CvCapture_OpenNI::CvCapture_OpenNI : Failed to enumerate production trees: Can't create any node of the requested type!

asked 2013-07-23 21:12:23 -0500

Hi, all:

Environment´╝Ü Ubuntu 13.04 + OpenCV 2.4.6 + OpenNI 1.5.4

Testing my simple code, but obtained the following error message:

Opened device HD Pro Webcam C920 successfully (handle = 1) Done. CvCapture_OpenNI::CvCapture_OpenNI : Failed to enumerate production trees: Can't create any node of the requested type! Sorry, fail to open the webcam! Exit! 0 0 0 0 0

I'm wondering if it's possible for me to specify the user-specified way to open a camera? I only have my Logitech C920 connected to the computer, but why OpenCV 2.4.6 tries to open the camera with OpenNI? I would like to use unicap to open my C920, instead of using OpenNI how to do that?

Cheers Pei

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