This World Cup has been held until now, and there have been many goals cancelled due to offside, which has caused heated discussion.
This is because high technology is introduced to the field. The combination of high technology and sports events has given the competition a new look, but it has also brought some new problems. During the game, few people complained about black whistle , but other discussions were very lively.
So, what exactly is offside in football matches? Why do you have to use high technology? What if offside is allowed in the game?
The so-called offside refers to the moment when the offensive passer player takes a kick. The receiver stands closer to the goal than the second-to-last defender, and is closer to the opponent's goal than the ball, and tries to prepare for the attack using this position.
Many people are curious: the defense party does not leave anyone behind, causing the opponent to attack in advance. This is the defense party’s own decision-making issue. Why are offside not allowed?
In fact, the offside rule was not found when football first appeared. Not to mention the Cuju in ancient China, even when modern football first appeared, there was no offside rule. What's the result? The offensive side usually piles most of their players in front of the opponent's goal, bullying the fewer and bombing the goalkeepers indiscriminately. It doesn't matter to the defense, anyway, we can also score goals with this tactic.
So, the scores of each game were very high at that time, not only did they create numbness in the goal, but also the goal did not require any wonderful cooperation or extraordinary, and had no technical content, which greatly reduced the ornamentality of the football. Therefore, in 1870, the British Football Association proposed the rule of offside for the first time. The rules at that time were different from the offside today, but after several changes, they have been passed down to this day.
If the offensive receiver is much closer to the goal than the defender, it is easy to judge. However, if two people are almost on the same line, the referee may not be able to see clearly.
In previous years, whether it is the World Cup, Intercontinental Competition or other competitions, it is inevitable that there will be real offside goals that are not discovered and offside goals that are not judged invalid. In 1986, there was even a situation where Maradona touched football with his hand against England, causing the goal. At that time, the referee did not see the first scene, and there was no video information on the spot, resulting in missed judgment. This is the famous " Hand of God ".
Of course, it doesn't matter to the beneficiaries of the disputed penalty. But for the injured party and their audience, these penalties are sometimes as regrettable as a nightmare. Moreover, in such an ambiguity, it is more likely to be an opportunity to give birth to a black whistle.
Where human eyes are not fully cared for is the stage for technology to be used. In this competition, thanks to the introduction of video referees, all key penalty decisions have accurate basis.
In fact, this is not the first time that video assistant referee has been introduced in the World Cup. At the 2018 World Cup in Russia, cameras also participated in the penalty. In the summer of this FIFA officially announced that it would continue to use VAR technology to make relevant rulings, and today's technology is more advanced.
On the court, there are 12 tracking cameras, which can capture the physical part data of each player at any time, and it can be said that it has reached a level of 360 degrees without blind spots. In each player, there are 29 data points , which are the key parts captured by the camera. The camera can record 50 times per second, which means that every player's movements in a moment are likely to be recorded.
After recording this data, they can be used to generate 3D animations. Think about it, 29 parts of the player's body have been recorded, which is enough to synthesize the movements and positions of the entire human body. By comparing the positions of the offender and the defender, you can easily determine whether it is offside or not. So you see, the player played by the video assistant referee is not the real player himself, but a virtual portrait restored based on the data points.
With this technology, offside or not becomes very clear. For example, in the first round of this World Cup, Argentina actually had three offside goals in the match against Saudi Arabia, and finally lost with a score of 1:2. At 23:00 on December 2, Bulgaria vs. Belgium , the former once won a penalty kick, but the video assistant referee found that the offside was the first, and canceled the penalty kick.
In addition to the data on the players being recorded, even the football itself is recorded. At the center of the ball, there is a built-in measuring sensor. Record data at a frequency of 500 times per second to record the position of the ball. These data not only help judge offside, but also play a role in critical moments.
For example, in the game between Japan and Spain at 3 am on December 3, there was a ball that was also controversial. Although it is not controversial because of offside, the focus of the controversy - whether it is out of bounds or not can also be judged using the high technology of this World Cup.
Facts have proved that it was not out of bounds, and the goal was scored without any controversy.
Football is different from basketball. Basketball is a player who touches a little bit of the edge line and is considered out of bounds, while football is a projection of the ball itself, as long as there is a little bit above the edge line, it is not considered out of bounds.
Finally, people reviewed the game and proved that the ball did not completely cross the sideline when it was farthest, and the projection part still had 1.88 mm overlap with the sideline. Good, it's really accurate~ If this goal does not count, the one who eliminated will be Japanese team , not German team. Netizens sighed: Germany is only 1.88 mm away from qualifying.
Not only football, but other sports have also introduced technology to assist. For example, the tennis ball I personally like to watch has long been known to Hawkeye technology, which can tell whether the ball has gone out of bounds.
The development of technology can certainly help sports competitions be conducted more fairly, but some people still think that it doesn’t matter without these high-tech. Although the previous competitions did not have high technology, they went smoothly? Even if a team or a player can score by missing a judgment, if you don’t have the strength, you cannot win entirely by luck. For example, in the game "Hand of God", Argentina finally won 4:2, and even without this ball, he could still win.
On the contrary, when there is no such technology, one or two controversial punishments by the referee will become a topic of debate in the long years to come. "The Hand of God" is still talked about by people today 36 years later.
Because of this, there are no absolute regulations in the international community whether to introduce these high-tech in a certain sports event. Take tennis as an example. Among the most important events - the four Grand Slams, there are still French Open insisting on not using Hawkeye technology and retaining the original flavor of the early competitions.
So, do you think the punishment for sports events should be so accurate?
#Telebrity Creation Challenge##Effective Distance 1.88mm Japan's second goal is not misjudgment#
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