Interactive Entertainment Technology - Augmented Reality

This is the fruit of my labours for our first Augmented Reality assignment. The pitch was to develop a system that could tell the height of an object from a fixed single camera. I created a small environment and took specific measurements to allow me create a mathematical function to allow me to accurately map pixel space to physical space. The results are pretty accurate, but there's one change I do want to make to it when I get a chance. The measurements on the bottom of the video are actually supposed to be (mm) and (mtrs) as opposed to (cms) and (cms). The system was created using OpenCV in Visual Studio 2005.