I suggest two simpler procedures to prevent voter fraud. First, take a thumbprint from each voter right next to his signature on the voter rolls. Second, videotape and record the entrances and exits to the polling place.
Keep it simple and effective. Picture ID's are unnecessary.
Certainly, recording of the polls would be a good idea. The Democrats have demonized this as well, insisting that it is voter suppression.
As a poll watcher, I was not allowed to have an audio or video recorder or to take pictures.