1. A method of identifying a point of interest of an object located in front of a computer controlled display area captured by an image capture device comprising: capturing an image of the display area to obtain captured data comprising an array of pixels; identifying pixels corresponding to the object within the captured data; identifying pixels corresponding to a peripheral boundary of the display area within the captured data; identifying and storing a subset of pixels common to the object pixels and the peripheral boundary pixels; searching using the common pixels and the object pixels to identify a pixel corresponding to the point of interest.