1. A video alignment system comprising: a light source for illuminating a spot in a scene, the light source being modulated according to a pseudorandom noise code having a corresponding correlator function; a video camera that captures digital images of the scene; and, a processor that: receives digital image data from the video camera, correlates image pixel intensities with the correlator function, normalizes correlation results with a voting system, and identifies a pixel in the digital images as a location of the spot on the basis of pixel vote totals.