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World Cup 2022: semi-automatic offside detection, the new star addition to football

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It wasn’t long before the newest addition to the game of football took center stage in the first game of the 2022 World Cup: three minutes and a few seconds.

After the Qatari goalkeeper made a mistake on the free kick, the ball fell to Aner Valencia, who got up between two defenders and the ball slid into the net. The Ecuadorian captain was congratulated by his teammates. He scored the first goal of the World Cup. After a few minutes of hesitation, the referee disallowed the goal. Semi-automatic offside detection made its debut.

In the third minute of the game, Enner Valencia thought he had scored his first goal of the World Cup. Manan Vatsyayan/AFP Image of a 3D reconstruction of the action, as shown in the stadium and on television beIN Sports/FIFA

“This new device will be especially useful in very tight situations on the front line,” predicted Clément Turpin, one of the French referees serving at the World Cup, when interviewed ahead of the tournament. “Sometimes it was complicated to know with the tools we had, now we have some that will make us more precise.”

Without this latest innovation incorporated into referees by the Federation of International Football Associations (FIFA), neither the Qatar-Ecuador referees nor their assistants nor the video assistant referees (VARs) in their booths would have been able to to recover from previous blemish. could predict. Goal World Cup.

Ecuadorian striker Michael Estrada was half a foot in front of the last defender when a teammate passed the ball to him, who happened to be offside at the time. But just like TV viewers, viewers had to wait in Al-Khor’s Al-Bait Stadium to see the reasons for the cancellation on screen, which was recreated in 3D. In a jumble of hands, feet and heads, the video referee had to make sure that the passer had actually touched the ball.

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According to critics of “semi-automated offside technology” (SAOT), this latest addition to the technical content of “augmented” umpires predates the advent of the machines. For FIFA, it’s about “faster and more accurate decision-making” and reducing controversy. Four years after the introduction of video-assisted referees, FIFA continues to increase the use of technology among referees.

This time, the aim is to push the boundaries of human vision. To do this, twelve cameras installed under the ceilings of the stadiums continuously scan the pitch and monitor each player’s position (dissected into 29 different body points) 50 times per second. As a result of this installation, the official match ball is equipped with an ultra-sensitive sensor – a touch activates it – that sends data to a computer 500 times per second. Since the offside rule depends on the exact moment the ball is played, this tool can determine it without margin of error.

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Source: www.lemonde.fr

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