Why did VAR concede Japan’s second goal against Spain at the World Cup?

Why did VAR concede Japan’s second goal against Spain at the World Cup?


The controversial move that ensured Japanese victory and the elimination of Germany can be explained by the phenomenon of parallax

Surprisingly, the Japan beat Spain 2-1 in the last round of the group stage from Qatar World Cup🇧🇷 However, the second Japanese goal, scored by tanakacontinues to raise questions as to its legality. The upset goal was confirmed only after the analysis of the VAR, which verified whether the ball had gone off the pitch, after being disallowed on the pitch. In the end it was validated and the Japanese team confirmed their triumph and first place in the standings E groupeliminating the Germany.

Five minutes into the second half, Mitoma was thrown down the baseline and reached over to cross the ball back. Tanaka finished and scored the goal. On the field, however, the match referee, South African Victor Gomes, disallowed the goal, stating that the ball had gone out of bounds from the backline before Mitoma made the pass. After the check, the VAR corrected the judge’s decision and validated the goal.

The offer generated much controversy with differing opinions on the validity of the lens. According to the rule, the ball must completely cross the endline to be out of play. The controversy was precisely the way used to infer whether or not there was part of the circumference of the ball in a direction perpendicular to the baseline. Even with the Al Rihla is equipped with sensors and a chip🇧🇷 able to detect if it has crossed the goal line and to determine when it starts moving after a pass, contributing to the semi-automatic offside technology implemented by FIFA in this cup, are unable to provide the position of the ball in relation to lateral and underline. That’s when VAR came into play.

The video referee’s team had to perform a visual analysis to determine whether or not the ball had crossed the endline. After checking the different angles and drawing the respective parameter lines, the VAR team guided the validation of the goal. However, the impression that the ball was out of bounds can be explained by a phenomenon called parallax, which is very common in fields such as physics and astronomy, and which also appears in football. This same concept is used to draw the lines of VAR in offside control, bearing in mind that semi-automatic technology is not yet available in all world championships.

understand parallax

The concept of parallax is defined by the apparent change in the position of an object as observed by those placed in different positions. This phenomenon explains why, in many cases, the camera angle presented to viewers in a television broadcast is not always ideal for reaching a conclusion in an offer.

On many occasions, the transmitted images give the impression that a player is in a legal position, for example, even if the lines drawn by the VAR indicate an irregular position, or vice versa. Currently, the impediments are analyzed as follows: the company responsible for generating the images used in the broadcast retrieves the move in question and forms the lines that will be drawn by the video referee in the “portrait” of the show. The VAR booth manager then indicates the reference points that will be used for tracking, such as the right foot of a defender and the torso of the scorer, indicating the irregularity through the concept of parallax.

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Source: Terra

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