VAR has a margin of error of approx 10 cm when used to measure offside. The 10 cm is an estimate based on camera frame rate and average speed of attackers running forward. An accurate measurement for offside would require the relative speed of the attacker and defender, information not available at the monment. So computer or no computer, nobody knows if a player is offside or not when the margins are very small.
Get cameras that can capture at a higher frame rate? 60fps is a joke.
No, sack it off or change the off side law so that if an attacker is beyond the last defender by a certain amount, say the diameter of a football (22cm), then it is classed as level and is onside. This gives a large benefit of the doubt to the attacking side. To judge offside by mm measurements of an armpit is ludicrous and completely impractical.
So they can use video and lines to draw the wrong conclusion more like.
This is true which means you can't rule a player is off or onside for a figure less than 10cms. The answer to this is just to make allowances for this and take this into account with the decision ie you can never be 10cms offside but 11cms is the margin. It would also be easier if they just took the position of a player's foot as the benchmark. That said we will never see correct decisions as long as the VAR team see their prime role as protecting their pals (the referees) instead of making an honest decision.
