Since the World Cup in South Africa 2010, the campaign for goal-line technology has gained momentum. England fans will have strong memories of Frank Lampard's ‘ghost goal’ when the ball hit the crossbar and bounced in and then out of goal. The Three Lions should have been awarded the goal which would have been the equaliser and made the game 2-2, but the lack of technology meant that Germany would go on to win the contest 4-1.
As a result of this and numerous other instances, this year's World Cup in Brazil will see the introduction of goal-line technology. For the first time in the competition’s history, there should be no discrepancies with possible goals that may or may not be, and major disputes that have spoiled past tournaments should also be avoided. The technology will be subject to a final installation test in each stadium, and pre-match tests will be carried out by the match officials.
The technology that will be used is from the Germany-based company GoalControl, which has also been used at the Confederations Cup and the Club World Cup. GoalControl is a system that uses 14 high-speed cameras, with seven cameras focusing on each goalmouth.
The ball's position is continuously mapped in 3D and the system is able to indicate whether a goal has been scored or not via a watch worn by each of the match officials within one second.
A similar system called HawkEye has been used in the Premier League this season and across the 38 rounds of games, it has managed to maintain a 100% accuracy of allowing or disallowing discrepancies over goals.
With goal-line technology also being used in the Capital One Cup, the FA Cup and in La Liga from 2015, it must only be a matter of time before it is introduced into most of the domestic leagues worldwide.