The decision provoked plenty of debate.
Barcelona beat Osasuna 2-0 on Saturday thanks to two second-half goals from Raphinha but could have been ahead earlier when Ferran Torres found the back of the net.
However, his goal was ruled out for a very tight offside, which drew plenty of complaints, and prompted the Technical Committee of Referees to demand an explanation from Hawk-Eye.
The manufacturers of the semi-automated offside system have now issued the following explanation.
“If you take the freeze-frame from the animation as your only reference, the line might not appear parallel to the goal line, but this is due to the image’s perspective,” read a statement.
“When a 3D scene is projected onto a 2D image , parallel lines in the real world that recede into the distance appear to converge towards a single vanishing point on the horizon.
“Therefore, since in this image the camera is exactly aligned with the offside line, that line appears perfectly vertical. Any line located to one side or the other will not appear parallel, as can be seen in the goal line to the right of the offside line and in the lines on the grass to its left.
“Based on everything described above, we conclude that the system worked perfectly, the decision was correct, and the animation was also correct.”
Category: General Sports
