Welcome, here are the presentations for the UALR EAC's 2015 class on Vuforia and OpenCV.
Vuforia: Vuforia web presentation.
OpenCV: OpenCV web presentation.
The .dlls associated with the OpenCV presentation are here.
OpenCVSharp is avaliable at github.com/shimat/OpenCvSharp.
If you wish to follow along on your own computer, please install Unity now. It can be downloaded from http://unity3d.com/unity/download