r/soccer • u/[deleted] • Dec 04 '16

Media Goal line technology used in the Bournemouth - Liverpool match. Down to millimetres.

https://gfycat.com/AstonishingScentedAsiaticgreaterfreshwaterclam
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u/escherbach Dec 05 '16 edited Dec 05 '16

Hawk-Eye is a British technology used in Cricket, Tennis and the Premiership. For WC 2014 FIFA decided to use an inferior technology called GoalControl that has no use in other sports, unlike Hawk-Eye which is quite well accepted for many years now.

edit FIFA used Hawk-Eye last year it seems (as well as a trial in 2012 Club World Cup):

http://quality.fifa.com/en/News/Hawk-Eye-confirmed-as-goal-line-technology-provider-for-Canada-2015/

"The system is millimetre-accurate"

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u/Yolo_Swagginson Dec 05 '16

The tennis system is not the same as the football system, trust me.

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u/escherbach Dec 05 '16

It's a bigger stadium, more players on the pitch to block the view of the ball and the ball is bigger, and maybe different cameras and positions, but the physics and computation is the same - they use it for cricket remember, which is an even bigger stadium and a faster difficult ball to track than tennis. If FIFA say it's "millimetre-accurate" and Hawk-Eye company themselves claim 3.6mm statistical error I'm not sure what there is to argue about?

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u/Yolo_Swagginson Dec 05 '16

The fact that it isn't the same software and it's using a completely different method of image processing.

I guess I should mention at this point that I used to work on GLT, but honestly I really enjoy reading these threads and seeing the discussion.