Frame into smart

In football, goals are determined when the entire ball crosses the horizontal line of the goal. However, this is a very sensitive situation because the referee sometimes fails to keep up with the ball.

FIFA plans to apply high technology to determine the goal, which will be the first international friendly match between England and Belgium on June 2 at Wembley (London). Accordingly, both of the frames were fitted with Hawk-Eye system to monitor, similar to refereeing support techniques in tennis and cricket. But for the first time using this, Hawk-Eye is only for reference after the match and the decision on the field still belongs to the referee.

Supporters hope this technique will help eliminate situations where the referee misjudged. For example, the ball went into the crossbar and then hit the ground and crossed the horizontal line, but due to the force of spin, it bounced out. In another case, the ball has crossed the goal line, but the defender or goalkeeper struggles to push the ball out. Remember the match England won 4-2 in the World Cup finals in 1966, player Geoff Hurst made a hat-trick. However, after 30 years, researchers at Oxford University concluded that there was an unconvincing goal because the ball did not actually cross the goal line.

The Hawk-Eye system uses at least 4 cameras to track the ball's flight path and it takes only 1 second to transmit signals to the clock on the referee's hand to indicate whether or not there really is a goal. In 2001, for the first time Hawk-Eye was used in cricket, it was tennis in 2006.

Another technology called GoalRef developed by the Fraunhofer Institute is also being reviewed by FIFA. The International Football Association will have a meeting to vote on technology selection on July 2, then FIFA will decide.