Sports
Qatar 2022: FIFA to Use Semi-Automated Offside Technology
By Adedapo Adesanya
The Federation of International Football Association (FIFA) has announced that semi-automated offside technology will be used at the FIFA World Cup 2022 in Qatar.
The new technology will offer a support tool for the video match officials and the on-field officials to help them make faster, more accurate and more reproducible offside decisions on the biggest stage of all.
Following the successful use of VAR technology at the 2018 FIFA World Cup in Russia, FIFA President, Mr Gianni Infantino, declared in The Vision 2020-23 that FIFA would strive to harness the full potential of technology in football and further enhance VAR.
By working with Adidas and various partners, and especially with the Working Group for Innovation Excellence and technology providers, FIFA has spent the last few years further improving the VAR system, including the use of semi-automated offside technology.
How Does It Work?
The new technology uses 12 dedicated tracking cameras mounted underneath the roof of the stadium to track the ball and up to 29 data points of each individual player, 50 times per second, calculating their exact position on the pitch. The 29 collected data points include all limbs and extremities that are relevant for making offside calls.
Al Rihla, the official match ball for the tournament, will provide a further vital element for the detection of tight offside incidents as an inertial measurement unit (IMU) sensor will be placed inside the ball. This sensor, positioned in the centre of the ball, sends ball data to the video operation room 500 times per second, allowing a very precise detection of the kick point.
By combining the limb- and ball-tracking data and applying artificial intelligence, the new technology provides an automated offside alert to the video match officials inside the video operation room whenever the ball is received by an attacker who was in an offside position at the moment the ball was played by a teammate. Before informing the on-field referee, the video match officials validate the proposed decision by manually checking the automatically selected kick point and the automatically created offside line, which is based on the calculated positions of the players’ limbs. This process happens within a few seconds and means that offside decisions can be made faster and more accurately.
After the decision has been confirmed by the video match officials and the referee on the pitch, the exact same positional data points that were used to make the decision are then generated into a 3D animation that perfectly details the position of the players’ limbs at the moment the ball was played. This 3D animation, which will always show the best possible perspectives for an offside situation, will then be shown on the giant screens in the stadium and will also be made available to FIFA’s broadcast partners to inform all spectators in the clearest possible way.
The workflow of semi-automated offside technology and the connected ball technology have been successfully trialled at numerous test events and live at FIFA tournaments, including the FIFA Arab Cup 2021 and the FIFA Club World Cup 2021.
During these matches, the new technology was able to support the video match officials by helping them to make more accurate and more reproducible offside decisions in a shorter period of time.
The data collected during online and offline tests has been analysed and validated by the MIT Sports Lab, with TRACK at Victoria University scientifically validating the limb-tracking technology. Further insights into the technological capabilities of such multi-camera tracking systems are being provided by a research team at ETH Zurich.
More tests will be conducted in the coming months to fine-tune the system before a global standard is implemented to ensure that the new technology can be used in the world of football.
Speaking on the development, Mr Johannes Holzmüller, FIFA’s Director of Football Technology & Innovation said — “We will have the semi-automated offside set-up with 12 cameras and the official match ball with connected ball technology in all stadiums at the FIFA World Cup 2022. The new technology will provide video match officials with real-time offside alerts using artificial intelligence.
“As the video match officials will be quality-controlling these outputs, we still refer to the system as ‘semi-automated offside’ as the video match officials have to validate the proposed decision and then inform the on-field referee.
“By using the exact same data to create a 3D animation for in-stadium fans and TV viewers, fans will receive a quick and accurate visualisation of the offside situation. This process was developed with input from FIFA’s Fan Experience Panel.”
FIFA added that all details on the semi-automated offside technology set-up and the connected ball technology will be presented to the teams that have qualified for the FIFA World Cup 2022 at the Team Workshop in Doha, Qatar on July 4-5 and then shared with the public.
The FIFA World Cup will hold in Qatar from November 21.
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By Adedapo Adesanya
Xabi Alonso has announced plans to quit as Bayer 04 Leverkusen Football Club’ manager at the end of the season after more than two and half years at the helm of the German club.
His exit comes amid strong links to Spanish giants, Real Madrid, where it has been reported he will join in coming months following the exit of Carlo Ancelloti, who will become the coach of the Brazilian National Team.
Alonso, who played for Liverpool, Real Madrid, and Bayern Munich, won the Bundesliga, DFB Pokal, and Supercup with Bayer Leverkusen as manager in 2024.
He led Bayer Leverkusen on an unbeaten run that was only ended when Atalanta defeated the club 3-0 at the 2024 Europa League final.
The club in a statement said it will announce the successor as head coach at the appropriate time.
Speaking on the development, Mr Werner Wenning, chair of the shareholders committee at Bayer 04.
“Together with Xabi Alonso we have written a success story just through winning the league title without defeat in a way not seen in German football.”
“He was an outstanding ambassador at all times as coach both for our club as well as for the whole Bundesliga. Therefore, we are very grateful to Xabi Alonso,” he added.
Mr Fernando Carro, as CEO, highlighted the sporting reputation that Bayer 04 has gained over the past two and a half seasons both at home and abroad: “Bayer 04 have achieved lasting recognition in the football world through the targeted success under Xabi Alonso. Bringing the Meisterschale to Leverkusen unbeaten plus winning the DFB Pokal, reaching the Europa League final and winning the Supercup makes us very proud.”
Sporting managing director, Mr Simon Rolfes assessed the Alonso era as a “milestone in the development of Bayer 04 Leverkusen. Together with Xavi, we have put together a team that has impressed the whole football world through quality on the pitch and mentality,” said Rolfes. “We are proud of the big steps forward and the standing of the club today and wish Xabi all the best in his future roles. I’m sure our paths will often cross again.”
For Alonso, the brilliant first chapter in his career as a professional coach ends with this departure from Leverkusen. “I owe great thanks to Bayer 04 Leverkusen, my players and staff, all the employees of the club and last but not least the fantastic fans. Our success was the result of an outstanding team performance.”
“This club, who showed exceptional trust in me, very much deserved to win the German league title for the first time. My thanks and admiration go to everybody who helped to make this triumph happen including the DFB Pokal win in Berlin,” said Alonso.
“Bayer 04 are ready for the future. The positive path will continue and I will be excited to follow it,” he added.
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