In the freestyle ski women's big jump final that ended this morning, Gu Ailing's last jump was perfectly reversed by the action of turning to the left axis of 1620, and won his first gold. As a "trapeze" sport, the audience may face a series of confusions when watching the game, such as what the judging criteria of skiing are, how the referee can see the difference between the champion and the runner-up, and so on. The reporter learned that with the application of "3D + AI" technology, the professional knowledge of competitive sports, the competition venue, scoring rules and points of view, difficulties and points can be more visualized and popularly presented to the audience, improving the ice and snow sports viewing experience.
"Same field competition" realizes the three-dimensional restoration of the picture and the virtual superposition of the champion and runner-up screens
In fact, even through slow-motion playback, it is difficult for spectators to see and understand a series of complex aerial movements completed by athletes in a high-speed motion state of up to 16 meters per second. For athletes and coaches, it is difficult to accurately judge the movement, posture, speed and stability with the naked eye alone, and it is even more difficult to improve the efficiency of training in a targeted manner. Such "embarrassment" is not limited to skiing. According to statistics, more than 90% of the Winter Olympics are ultra-high-speed sports, and there is an urgent need for scientific and technological means to assist training and service viewing.
Space-time freeze frame freezes continuous motion into 3D space
Wu Tian, vice president of Baidu Group, revealed in an interview that through the "3D + AI" technology, the technical team of Baidu Intelligent Cloud has created a 1:1 3D model for the Shougang Ski Jump, and the audience can realize immersive viewing through the form of 3D scene roaming, and obtain a visual and popular explanation of the big jumping ski competition.
The duel between the masters is between millimeters. Wu Tian introduced that the "same field competition" system created through "3D + AI" technology has turned the single-player competition project into a virtual "multi-person competition", realizing the three-dimensional recovery and virtual superposition of the champion and runner-up competition screens, which is convenient for the audience to see the real-time actions of different players through a track. At the same time, through quantitative analysis, the athlete's technical movements can realize the superposition of a series of motion data such as gliding speed, lifting height, landing distance, rotation angle and other sports data and the original picture, which solves the problem of high-speed and difficult action restoration. The picture presented by the technology is combined with the technical decomposition of the professional commentary, so that the audience can more intuitively understand the technical differences between the players and easily understand the battle between the champions and runners-up.
Baidu Intelligent Cloud also freezes the continuous action of the timing to 3D space through the "space-time freeze-frame" technology, which not only allows the audience to see the action clearly, but also realizes 360-degree multi-angle viewing. In layman's terms, it is as if a 3D version of the "strobe camera" is realized, which captures high-speed continuous motion "steadily and accurately" through multiple strobes, allowing the audience to see every action detail of the player in all directions.
It is reported that this technology developed by Beijing artificial intelligence company Baidu has been applied to the popular CCTV-1 "Hall of Honor" program to reveal the various competitions of this ice and snow event for the audience.
Source Beijing Daily Client | Reporter Sun Qiru
Edited by Cai Wenqing
Process Editor Wu Yue