Locating Tennis Ball Impact on the Racket in Real Time Using an Event Camera
Yuto Kase, Kai Ishibe, Ryoma Yasuda, Yudai Washida, Sakiko Hashimoto

TL;DR
This paper introduces a real-time method using event cameras to locate tennis ball impacts on rackets, overcoming high-speed camera limitations and enabling continuous performance monitoring.
Contribution
The paper presents a novel event-camera-based approach for real-time impact detection in tennis, reducing memory use and manual effort compared to traditional high-speed cameras.
Findings
Accurate impact location detection within permissible performance range
Real-time processing with short computation time
Effective continuous monitoring over extended periods
Abstract
In racket sports, such as tennis, locating the ball's position at impact is important in clarifying player and equipment characteristics, thereby aiding in personalized equipment design. High-speed cameras are used to measure the impact location; however, their excessive memory consumption limits prolonged scene capture, and manual digitization for position detection is time-consuming and prone to human error. These limitations make it difficult to effectively capture the entire playing scene, hindering the ability to analyze the player's performance. We propose a method for locating the tennis ball impact on the racket in real time using an event camera. Event cameras efficiently measure brightness changes (called `events') with microsecond accuracy under high-speed motion while using lower memory consumption. These cameras enable users to continuously monitor their performance over…
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Taxonomy
TopicsSports Dynamics and Biomechanics · Sport Psychology and Performance · Human Pose and Action Recognition
