Philosophy of replay on field goals

[jchamp]

I wasn't thinking of a particular case play. In fact, I only recall one close field goal that was ever reviewed where the announcement was something to the effect of the result not being reviewable. I was more interested in what philosophy drove the rule, and it sounds like a cost-benefit thought process, which I understand.

I dabbled in image processing and analysis years ago, and was thinking about a way to build the logic to automatically detect field goals based on the flight of the ball being obscured or not by the goal posts and crossbar. It's a relatively simple logic, and if you use a camera facing the field, the processing should be quick and easy. It could also allow all the officials to stay on the field, in case of a fake, a block, or other shenanigans.