A thread on reddit by a Liverpool fan, called "A reconstruction of the BHA game offside call against Salah":
https://www.reddit.com/r/soccer/comm..._offside_call/
Quote:
I attempted to recreate the body position of Brighton player Ben White in the controversial offside call on Salah. This is in response to debate about whether it is possible for White's right foot to be across his body. This is by no means a definitive final answer on whether Salah was on side or not, although personally I believe he was on. The purpose here is merely to demonstrate that the VAR offside evaluation system could potentially create false positive rulings.
The model was created in MagicPoser app and then aligned with the VAR footage. This model can modified in multiple ways and yet still look the same from this high angle. For example, the torso can be tilted forward with minimal perceptible change.
What we can conclude is what we already know, that VAR in its current state is not equipped to make a precise measurement. In this situation VAR should advise the ref that it is too close to call.
As seen in the VAR review, the defender line was drawn to the right boot of the player. From this perspective it appears obvious that the right boot is closest to goal. At this moment the player is traveling diagonally across the field, mainly towards the side line, at a light trot.
Rotating the model to face the side line, we can see that the left arm and shoulder of the model are ahead by almost a foot. The left arm positioning is not clear due to the VAR image being blurred, therefore the model's arm has been tucked in close to the body. If the arm were posed out further, the offside line should be even closer to goal. The right leg was positioned as far across the body as felt natural for this pace.
Here is a side image to show positioning of the legs are natural for this pace of run.
What if the right foot was the closest part to goal?
The right leg of the model was then posed further across the body so as to put it in line with the left arm. Note how it looks more unnatural and exaggerated to achieve this.
Returning the camera angle to the matched angle, we can see the right leg no longer resembles the still image. This suggests that White's right leg was likely not across his body.
The purpose here isn't to complain about the refs. Brighton put on a good game and I respect the final score. I want to repeat that the purpose of the model is to demonstrate that there is significant room for doubt about the offside lines drawn with VAR. The system in its current state does not have the precision to rule out "clear and obvious" errors when players are this close.
|
26-10-2020, 01:43 PM
Similar Threads for: The 2020/2021 RAWK Nuggets Thread
