1. A method of operating a video system, comprising the steps of: receiving an image captured by use of a fisheye lens; dividing the image into a plurality of horizontal image lines; and sampling a respective fraction of each of the horizontal image lines with a different respective sampling frequency, each sampling frequency being inversely related to a size of the sampled fraction, the size of the sampled fraction increasing with each horizontal image line in a progression from a top of the image to a bottom of the image.