AI reveals: Fan Zhendong's ball flies 19 meters per second and completes 146 turns!
2024-08-15
During the Paris Olympic Games, table tennis was one of the events that attracted the most attention of countrymen. Who plays the ball with the highest spin speed in the game? Who has the most types of balls? Who has the fastest ball speed? A Chinese team provided AI technology for Olympic table tennis broadcasting, which answered the above question. This is the first time in Olympic history that AI technology has been applied to the international public signal production of table tennis, and many details of the competition can be restored one by one. Through television footage and AI technology, viewers were pleasantly surprised to discover that the trajectory, landing point, and rotation direction of a table tennis ball with a diameter of only 40 millimeters can be clearly presented. The maximum spin speed appeared in the first doubles match of the men's table tennis final, when Swedish player Karlberg hit a ball that reached 146.6 revolutions per second; Next is the men's singles final, where Fan Zhendong hit a ball that reached 146.48 revolutions per second. These are the only two balls in this Olympic Games that spin at 146 revolutions per second. Simply put, both players made the ball spin 146 times in one second, all of which were winning shots, higher than the average spin of 66.7 revolutions per second for male athletes Gu Lihua, the head of the table tennis broadcasting AI team for the Paris Olympics and from Shanghai Oriental Media Technology Co., Ltd., said. The fastest player is Fan Zhendong. In the second singles match of the men's team final against Moregaard, "Xiaopang" hit the fastest speed of 19.3864 meters per second to make the ball fly. In addition, Wang Chuqin has also hit a ball speed of 17 meters per second. In this Olympic Games, the average ball speed of male athletes is 7.1 meters per second. If it exceeds 10 meters per second, it means that the ball speed is already very fast. If the opponent can still catch it, it proves that their reaction is quite fast Gu Lihua said. According to AI data, the North Korean mixed doubles duo of Lee Jung sik and Kim Jong young are the players with the most changes in serving at this Olympic Games. The North Korean duo's ability to win a mixed doubles silver medal really depends on their strength. The two of them have a lot of spinning changes, each with their own unique serve. In addition, they rarely participate in international competitions, which makes many combinations uncomfortable with their playing styles. It can be seen that the two have prepared carefully for the Olympics, "said Gu Lihua. AI technology can measure small and high-speed targets, and after measuring them, they can be placed in a motion scene and visualized with AR (augmented reality) to present this effect Gu Lihua introduced that in order to prepare for the Olympics, the team spent a year and a half developing this "InnoMotion Sports Event AI Product". Before the start of the competition, a visual sensing camera was installed in the table tennis hall to specifically capture the signals required by the AI. We can track and analyze the trajectory, landing point, speed, rotation speed, steering and other parameters of table tennis in real time through data collection and virtualization presentation, and provide AI tactical analysis through 3D animation, MR and other technologies, just like the 'second commentator' on the field broadcast Bai Li, a witness to the broadcast of the 8th Olympic Games and an expert in data application for the table tennis broadcast AI team at the Paris Olympics, said, "These new data not only enhance the audience's viewing experience, but also enrich the production methods of international public signals, giving commentators and journalists from various countries and regions a new perspective to explain and record the game." "In the future, this system can achieve VAR (Video Assistant Referee) function, which can accurately distinguish and visualize the edge and net wiping, including serving violations, in table tennis matches." Bai Li said, "Audiences can not only enjoy the exciting scenes of the live broadcast, but also see the playback of key data. They can not only watch the excitement, but also understand the tricks. Olympic Broadcasting Service (OBS) producer Wang Haiwei believes that, This technology has established a new standard for the television broadcast of table tennis. "For many years, camera lenses and traditional television technology have been unable to present the current technological story of table tennis. Now, with the use of AI data, it not only reflects the depth of attention and interpretation of table tennis in China, but also the efficiency and strength of Chinese companies in the field of artificial intelligence
Edit：Xiong Dafei Responsible editor：Li Xiang
Source：XinHuaNet
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