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Tennis training in the living room

Credit: VR Movement Studying GmbH & Co KG

TU Wien (Vienna) and VR Movement Studying are collectively creating a digital tennis coach. Sooner or later, the digital coach won’t solely be capable to analyze actions, but additionally give suggestions to the gamers.

Till now, tennis training classes have primarily taken place on the tennis court docket. The event of a digital tennis coach will make it attainable to additionally prepare at residence in future. The companions, TU Wien and VR Movement Studying, have been engaged on the event of their digital tennis coach since March 2020. Whereas so far the primary focus has been on analyzing and automating the popularity and analysis of motion sequences, the team is now concentrating on the didactic element so as to present customers with useful suggestions.

Coaching of the AI

With the developed tennis simulator (Tennis Esports), customers can expertise digital tennis and carry out bodily right strokes. The tennis coach based mostly on that is geared toward people who find themselves new to the game or need to enhance their approach. When performed accurately, tennis will not be solely extra enjoyable, however accidents will also be prevented. To ensure that potential tennis players to be taught from a digital coach, the latter should first be outfitted with the suitable expertise. For the aim of analyzing how completely different strokes comparable to forehand topspin, backhand slice or serve are accurately executed, the crew first invited skilled tennis players to report their actions—in addition to the steering of the racket—with cameras. The ensuing database of various strokes may then be analyzed and in contrast with a specifically developed synthetic intelligence.

“At the end of the first phase of the project, the virtual tennis trainer was able to record and evaluate new movements of the players in a fully automated way, based on the strokes recorded as correct,” says Hannes Kaufmann, head of the Digital and Augmented Actuality group and professor for Digital and Augmented Actuality at TU Wien. “The challenge we are now facing is the implementation of a feedback function. After all, the simulator should also contribute to improved game performance.” The suggestions perform not solely needs to be applied technically, additionally it is mandatory to contemplate how studying and coaching results can be best. “One advantage that the virtual environment offers us is that the same situation can be experienced several times. The feedback on a stroke can therefore be implemented directly,” explains Peter Kán from the Pc Graphics analysis division at TU Wien. When coaching just about, the gamers stand on a (digital) tennis court docket on which they will transfer freely.

On the court docket or at residence?

This system might be seen as an extension to the coaching on the tennis court docket. The concept is to provide human coaches a software to allow gamers to coach off the court docket, alone or in pairs, at completely different areas. “In order to be able to train at home in the future, we are developing a version in the coming project phase that will analyze the strokes exclusively on the basis of existing VR sensor data. An additional camera system for motion detection will then not be necessary,” stories Peter Kán. The gamers would then solely want a VR headset and a tennis racket—the beforehand required depth digicam would turn into superfluous. Coaching is already attainable on an space of 2×2 meters, which might be prolonged to 10×10 meters.

By creating a model for residence use, the crew is responding to obstacles comparable to the shortage of a coaching associate or an absence of time flexibility. It is very important the event crew to create an utility for people who find themselves within the sport of tennis, not primarily in e-sports. The digital tennis coach is anticipated to be out there for the Oculus Quest by the tip of the 12 months.

Playing tennis on a smart court

Tennis coaching in the lounge (2022, March 14)
retrieved 14 March 2022

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