Stereo Vision with Minoru 3d Webcam in Processing and OpenCV - opencv

Question

I recently purchased a Minoru 3d Webcam (http://www.minoru3d.com/) in the hopes of using it to do stereo vision in OpenCV. I thought I had done the proper research before ordering it verifying that it would work, but all of those resources are a number of years old.
At the moment, though OpenCV can be ignored. I am using processing just trying to access both cameras separately. It would appear some people have had success in various languages, but the documentation is sparse and in the end just takes me in circles.
Running a Capture.list() command in Processing produces a list shows
name=Vimicro USB2.0 UVC PC Camera,size=640x480,fps=5
name=Vimicro USB2.0 UVC PC Camera,size=640x480,fps=30
etc
name=Vimicro USB2.0 UVC PC Camera,size=640x480,fps=5
name=Vimicro USB2.0 UVC PC Camera,size=640x480,fps=30
etc
My Laptops Webcam
Although I can access the first set, the duplicates are blank, and other software has the device "Minoru 3D Webcam", such as Skype, etc. With this in mind, I have only been able to see the device working in one piece of capturing software, which was installed with the device from a CD. Skype has it listed, but says its in use, or just waits and waits. Note, it is possible to change from a Red/Blue to this side by side.
I am running Windows 7 64 Bit, and did my best to find the most recent drivers. If I had a Linux computer working I would definitely try on that, but at the moment that's not an option.
If I could just access the one "Minoru 3d Webcam" with it side by side, that'd be great. But even hearing that it definitely wont work would be helpful.

Answer 1

I have this configuration (windows 7 64 bits, opencv 2.4.9).
To make minoru 3d functional, i have re-compile opencv with USE_DSHOW flag on.
In fact, it's only necessary to have a new opencv_highgui249.lib and dll re-compiled
For DirectShow, you'll need Windows SDK

Answer 2

I have had exactly the same problem as you (Windows 7 Enterprise , 64 bit). I am currently at the Opencv master branch, building for Visual Studio 2010 C++.
After several evenings failing to capture both Minoru cameras with e.g. :
VideoCapture cap1(1);
::Sleep(200);
VideoCapture cap2(2);
if (!cap1.isOpened() || !cap2.isOpened()) {
return -1;
}
... // stereo calibration
I found out by trial and error that both cameras were captured correctly if:
Used the default Microsoft Vimicro USB2.0 PC Camera driver. I.e. I have completely uninstalled the Minoru software coming with the CD.
Only plugged the Minoru into a USB 2.0 port. If i plug the Minoru into a USB 3.0 port, both cameras light up but OpenCV only captures from one of the cameras - rather unusable for stereo vision.

Answer 3

I found a simple application running opencv with python on a raspberry pi that can help you. The code used for processing the image is:
Example.py
import cv2
import numpy as np
c = cv2.VideoCapture(0)
c.set(3,1280)
c.set(4,480)
while(1):
_,visao = c.read()
esquerdo = visao[0:480, 0:640]
direito = visao[0:480, 640:1280]
cv2.imshow('esquerdo',esquerdo)
cv2.imshow('direito',direito)
if cv2.waitKey(5)==27:
break
cv2.destroyAllWindows()
The reference is -> http://jeaeletronica.blogspot.com.br/2013/07/how-to-run-minoru-3d-webcam-on.html .