what is it that I am getting from my code?

[akengi]

Using calibkinect.py, i printed u,v array and x,y,z array using the following code line for a sample of pixels, as given in the example: u,v = mgrid[10:120,50:80] xyz,uv = depth2xyzuv(freenect.sync_get_depth()[v,u], u, v)

what are these values exactly? and how can I use these values to find the location of my object in those pixels, with respect to kinect's position... what am I missing here!!?? Please help!

Below is the screenshot for the reading of the pixels of the wall, which is approximately 120 cm away from my kinect.