Badminton serving assistant referee system based on computer vision detection technology

Abstract

The invention proposes a badminton serving assistant referee system based on computer vision detection technology. The system of the invention includes an image acquisition platform, a data processing platform and a display terminal. Wherein the camera or video camera is the image acquisition platform, the computer and software are the data processing platform, the software includes image processing software and corresponding calculation formulas designed according to the method, and the display terminal can be an external display device or a built-in display device of the data processing platform. The system of the present invention first calibrates the camera, and uses the target detection and tracking algorithm to realize the real-time detection, tracking and positioning of the target through the preprocessing and learning of the video. Through the threshold setting of the numerical change scale of the horizontal movement direction of the shuttlecock (x-axis) in the image, the image frame at the moment of hitting the ball is locked as a key frame, and the height of the shuttlecock in the key frame is calculated according to the principle of projective geometry, and the positioning of the camera is assisted, and the calculation result is corrected and displayed in real time. The invention realizes the real-time determination, and the determination accuracy reaches centimeter level.

Description

technical field [0001] The invention belongs to the technical field of motion detection, in particular to a badminton serving assistant referee system based on computer vision detection technology Background technique [0002] In May 2018, the World Badminton Federation passed a resolution in Bangkok that the moment the badminton ball is sent, the height shall not be higher than the fixed height of 1.15 meters on the field level. The implementation of the new rules has brought fairer standards to badminton competition, but also brought new challenges. Judging from the existing technology, the height penalty can only be judged by the human naked eye combined with the fixed height meter of the serve. There are both physical errors and subjective judgments. Since the implementation, there has also been huge controversy on the field. To solve the accuracy, consistency, objectivity and stability of judgments and penalties is an urgent problem to be solved. The invention patent ...

AI Technical Summary

Problems solved by technology

The invention patent in the actual examination stage with the application number "201810980079.7" and the application publication number "CN109045662A" proposes a technical method, which uses infrared emission and acquisition devices for measurement, which is relatively complicated. Changes have been made, not only changing the manufacturing process of sports equipment badminton, increasing the cost of sports equipment, but also involving the need for new rules to define the equipment, which is not very feasible and practical

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