Goal-line technology in soccer has been a long time coming. Referees have been unable to truly tell if a big white ball crosses a white line for years, dating back to the 1966 World Cup Final when Geoff Hurst “scored” the go-ahead goal against Germany. But the real impetus for this technology was Frank Lampard’s disallowed goal in the 2010 World Cup. FIFA President Sepp Blatter pushed for this ability almost immediately after that game.
After a bidding war between companies, FIFA selected “GoalControl,” which beat out the competition, most notably HawkEye – whose technology currently monitors line-calls in tennis.
The system, called “GoalControl 4-D” should be up and running by the 2014 World Cup in Brazil, but has been labeled too expensive for the UEFA Champions League.
“The GoalControl-4D system works with 14 high-speed cameras (7 per goal) around the pitch at the stadium roof/catwalk. The cameras are connected to a powerful image processing computer system which tracks the movement of all objects on the pitch and filters out the players, referees and all disturbing objects.
The remaining object is the ball and the system knows its three dimensional x-, y- and z-position with a precision of a few millimeters in the coordinate system of the pitch. When the ball passes the goal line, the system sends a vibration- and optical signal to the officals´watches.
Of course, all camera images of such goal event, and also of all near-goal events, are stored and can be replayed anytime,” says GoalControl’s website.
Hopefully, the Germans will work on a technology to prevent or penalize flopping. Like this: