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Clemdog

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1 hour ago, Somemightsay7 said:

Mad how everyone's losing their mind about VAR disallowing a Coventry goal, when it was actually offside. 

Not sure what people actually want. 

The penalty not given to Chelsea the day before is something that actually deserves to be discussed as that's a blatant error from VAR.

 I want VAR to be scrapped 

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3 minutes ago, folkestoneger said:

 I want VAR to be scrapped 

Aye that would make sense as a Rangers fan when we’ve been awarded 10 of 14 penalties through VAR

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1 hour ago, Somemightsay7 said:

Mad how everyone's losing their mind about VAR disallowing a Coventry goal, when it was actually offside. 

Not sure what people actually want. 

The penalty not given to Chelsea the day before is something that actually deserves to be discussed as that's a blatant error from VAR.

‘Robbed of a historic moment’ =
getting the decision correct. 

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1 hour ago, Somemightsay7 said:

Mad how everyone's losing their mind about VAR disallowing a Coventry goal, when it was actually offside. 

Not sure what people actually want. 

The penalty not given to Chelsea the day before is something that actually deserves to be discussed as that's a blatant error from VAR.

Even worse decision when you saw the penalty awarded to Coventry that took it to extra time. Absolutely no consistency.

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59 minutes ago, graeme_4 said:

‘Robbed of a historic moment’ =
getting the decision correct. 

Debatable. The frame rates are not good enough to be 100% sure when it’s down to such fine margins. 
 

https://www.dailymail.co.uk/sport/football/article-13336073/VAR-Aaron-Wan-Bissaka-Man-United-FA-Cup.html

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4 minutes ago, graeme_4 said:

Off is off. 

So you’ve closely studied it all and decided there was absolutely no margin for error. Well done because that’s more than scientists have been able to do. Or are you just ignoring the photograph in the article that shows it’s maybe not absolutely certain after all?

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18 minutes ago, folkestoneger said:

So you’ve closely studied it all and decided there was absolutely no margin for error. Well done because that’s more than scientists have been able to do. Or are you just ignoring the photograph in the article that shows it’s maybe not absolutely certain after all?

You’ll be drawing lines on screenshots using Microsoft paint in a minute.

The technology is there to get it right, and it does. 

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28 minutes ago, graeme_4 said:

Off is off. 

100% with you however I am not entirely convinced the technology is up to being as accurate as it needs to be to make such tight decisions.

 

Image below was discussing a call from August 2019 but is basically highlighting that VAR uses 50Hz (50 frames per second) and picks the image that they can be certain the ball has been played. In the one they were using Sterling was running at 23.4kph and would have moved up to 13cm between frames so there is a possibility that he could have been onside if the ball was actually played earlier.

 

Easiest solution for me would be to build in a tolerance factor to the really tight calls. Should be pretty easy to get an algorithm to figure out the relative speeds that the players involved were travelling and therefor maximum distances covered between frames - i.e. attacker could have moved 20cm forward and defender 10cm back between the frames, therefore there is a 30cm range where the technology is not accurate enough to definitively say where both players were.
 

Carry out the offside check as normal but if the distance between the two lines is within the range then it is too close to call and goes back to onfield decision (or attackers get the advantage even).

 

The main issue at the moment is that we are pretending VAR for offsides is 100% accurate. For the vast majority of cases it is, however for really tight calls the technology being used can’t be accurate enough to give a definitive answer.

IMG_2878.webp

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