Qianjiang Evening News hourly news reporter Zhang Yunshan
The Winter Olympics are in full swing, and how technology can help ice and snow sports has attracted much attention. Recently, Baidu Intelligent Cloud cooperated with CCTV's "Mystery Infinity" program to reach the growth line technology, using "3D + AI" technology to bring scientific and technological assistance to the presentation of competitive sports programs and the daily training of athletes. Based on Baidu's intelligent cloud "3D+AI" technology, the audience can achieve "science and technology viewing" through technologies such as "same-field competition", "time-space freeze-motion", and "3D scene roaming". In addition, the technology has been applied in diving, table tennis training, to create an "AI coach" for the national team.
For the audience, it is not only necessary to understand the technical differences of the same competitors, but also to understand and see the movements of each player in the air. Ski jumpers move at high speeds of 16 meters per second, and they also need to complete complex churning and turning movements in the air, which is difficult to capture with the naked eye.
In the beijing winter olympics freestyle ski women's big jump final held this morning, Baidu Intelligent Cloud used 3D + AI technology "space-time freeze-frame + quantitative analysis" to freeze all the details of Gu Ailing's first and third jumps into 3D space, not only allowing the audience to see the action clearly, but also achieving 360-degree multi-angle viewing. In layman's terms, it is as if a 3D version of the "strobe camera" is realized, capturing high-speed continuous movement through multiple "strobes", allowing the audience to see every detail of the player's action in all directions.
This technology not only allows ordinary audiences to more intuitively appreciate the charm of ice and snow projects, but also plays a great role in the daily training of professional athletes and ice and snow enthusiasts. By watching back the video, the players can more intuitively understand the accuracy and completion of the action, find problems in time, correct and improve the details of the action in a more scientific way, and improve the training effect.
The design of the Shougang Ski Jump is inspired by the "flying sky" in the ancient Dunhuang murals, which looks light and ethereal from a distance, but is actually majestic and steep, the entire track is 164 meters long, the widest part of the track is 34 meters, and the highest point is 60 meters, equivalent to the height of 20 floors. Many snow lovers want to see it on the ski jump, but they can't see it for a variety of reasons.
In order to allow the audience in front of the screen to also enjoy the magnificence of the Shougang Ski Jump, Baidu Intelligent Cloud uses virtual reality technology to reconstruct and virtually restore the Big Jump platform in three dimensions, creating a 1-to-1 stadium 3D model of the Shougang Big Jump, the audience can enjoy the Big Jump from a multi-angle perspective such as long-range, panoramic view, close-up view, etc. through the form of 3D scene roaming, and can switch different visual effects such as day, night, and water, and the surrounding environment, the arc of the jump platform, and the difficulty of the track are all at a glance. Through the quantitative analysis of "3D + AI" technology, a series of motion data such as accurate gliding speed, lifting height, landing distance, rotation angle and so on can be superimposed on the original picture. The technical difficulty here is that it is not a static picture superposition, but is implemented on a high-speed continuous action video, and our technology overcomes this problem to achieve smooth and accurate quantitative analysis.
Baidu Intelligent Cloud solves the problem of high-speed and difficult action restoration through "3D +AI" technology, turns the single-player competition project into a "multi-person competition", realizes the three-dimensional recovery and virtual superposition of the champion and runner-up competition screens, and allows the audience to see the real-time actions of different players through a track.
With the technical decomposition of professional commentary, the audience can more intuitively understand the technical differences between players from the perspectives of fluency, completion, difficulty, diversity and aesthetics.
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