Steve Haake
Professor of sports engineering
Sheffield Hallam University
Planet Football: why FIFA should embrace technology
FIFA has steadfastly refused to embrace technology, particularly when it comes to goal line technology.
Tennis, rugby and even that most traditional of games, cricket, have welcomed the use of video replay to help umpires and referees, Hawkeye to measure line calls or audio and infra red cameras to measure ball contact with the bat. And football? All we get is extra linesmen (sorry, assistant referees) behind the goal on special occasions.

Hawkeye is used to make line calls in tennis
Someone asked me recently what I thought would happen if FIFA was to have a sea-change and wholeheartedly accept technology. If the rules were taken away, how far could technology take football and how would the game look in a decade’s time?
Ball tracking technology with predictive capabilities exists in the form of Hawkeye and has been effective in both tennis and cricket
Firstly, how can we help referees? They rely on their wits, player psychology and the (often vain) hope that they won’t encounter a situation that only repeated video replay can show. The FIFA argument about line calling systems in football is long and tortuous and immersed in political ideology rather than logical fact. So, what is possible? The simplest system would have three or four slow motion videos embedded in the frame of the goal which could immediately tell if the ball had crossed the line. This would be the easiest route for FIFA who could start with just replays with one of our extra officials as an arbitrator. This still relies on subjective assessment of the position of the ball in relation to the line but at least the referees have the same technology as the audience rather than none at all. This can be done now.
Ball tracking technology with predictive capabilities exists in the form of Hawkeye and has been effective in both tennis and cricket and could certainly be used to judge whether the ball is over the line or not. The compromise here is whether to allow automatic line calling or to have a human override to ensure the correct decision. This can also be done now.

An alternative tracking system developed by Cairos used a sensor in the ball to detect whether the ball crossed an electro-magnetic field in the goal. FIFA could go a step further and use a sensor in the ball to allow it to be tracked across the pitch. The sensor would include accelerometers, rate gyros, magnetometers and even temperature and humidity. Continuous recording of ball position would give FIFA, the professionals and the public huge amounts of data to play with. Just imagine the tables in the back of the Sunday papers.
Come on FIFA, the world is leaving you behind. Give the world’s football lovers what they want for a change.
These sensors are already being used in shirts to measure position, speed, acceleration and rotation; in fact everything you need to know about where the player is and what the player is doing. Sensors also have ECG to measure heart rate to give calorific expenditure and heart rate variability which could indicate psychological state and over exertion. If we really wanted to, lightweight HD cameras in the shirt collars could give live feedback from the player’s point of view although audio might be limited until the player’s can play without swearing. In short, we could know what the players see, where they are, where they aren’t, how they’re feeling and whether they’re trying hard enough.
What about the TV audience? High definition TV is here, as is 3D TV. And so is augmented reality. So how about a live football match appearing on a coffee table like a Subbuteo game that had just come to life? Imagine holding a camera-enabled touch screen (such as a smartphone or iPad) in front of you; the camera detects a known shape on your table such as a flat sheet of paper or the table itself.
Fanta virtual tennis
The paper appears on the iPad screen but with the amazing addition of a live 3D football match, with players, referees, ball and all. Moving around the sheet gives you a new view of the football match and moving closer zooms you in. You could even view in slow motion 3D the goal line images and see for yourself on the coffee table if the ball really did cross the line. Better still, you could vote on whether it was a goal and the referee could use yours and the other millions of pairs of eyes to make the decision.
So come on FIFA, the world is leaving you behind. Give the world’s football lovers what they want for a change.








Readers' comments (7)
Chris Wood | 5 Oct 2011 2:59 pm
People might argue that some of the randomness, the sporting 'luck' comes from the judgement of the officials - whether right or wrong it might help Swansea have a chance of beating Man U, now if we have technology that proves the ball never went over the line surely all we'll get is straight forward results over and over again?
It might make betting a bit easier!
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Steve Haake | 7 Oct 2011 3:13 pm
Ha, I like your last comment! More seriously, I agree there is something nice about the randomness of the judgement of the officials but this really ought to be confined to those things that can't easily be proven; for instance diving, professional fouls, obstruction etc. We should limit our technologies to things like whether the ball is over the line or not which is relatively easily measured and only has a small amount of subjectivity to it.
Anyway, thanks for the comment (come on Swansea!).
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Tom Taylor | 11 Oct 2011 3:23 pm
Hawkeye technology should be used for all Premier League and Champions League matches to sort out the "ball over line " issues. Do not bother with the extra goal line assistants as their jobs are redundant (also saves money). There should be 3 referee decision challenges per side allowed ( as in American football) for controversial decisions with an independent arbiter deciding these. All of this is tried and trusted technology and requires no experimental development.
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Anonymous | 11 Oct 2011 3:37 pm
Don't put the sensor on the side of the ball or it will be bias towards one side (when does it cross the line). Don't put it in the center of the ball because if broken: it will still transmit data and we'll never know if it is in middle or floating RANDOMLY inside the ball.
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Geof | 12 Oct 2011 7:00 am
. .. there is a risk that football fans and viewers will have nothing to talk about . .. the offside rule anybody?! Goal line tech has got to be the most basic need for fia to cover its own back and embrace!
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Kartik Menda | 13 Oct 2011 9:53 am
How do they check whether the puck has crossed the line in Ice Hockey, and can that techonology be used in football as well?
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Anonymous | 13 Oct 2011 2:26 pm
There are a handful of high-profile goal line incidents that have impacted the result of football matches but not enough to warrant such so much attention. What technology could help with is red card decisions, penalties and offside calls.
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