Lu Liu, and Xiaolei Lu.  Research on Badminton Players’ Trajectory under Numerical Calculation.  Dynamic Systems and Applications 29 (2020) No. 3, 695-706

https://doi.org/10.46719/dsa202029323

ABSTRACT:
The trajectory tracking of badminton players’ arm shots can effectively enhance the player’s shot quality. To track the image trajectory of the batting arm, it is necessary to calculate the body posture ratio and tightness of the target area of the batting arm, filter the background interference of the image segment of the batting, and complete the efficient tracking of the trajectory of the arm batting image. The traditional method combines the adaptive threshold segmentation method to extract the hitting arm target from the background, but ignores filtering out the background interference of the hitting image fragment. This paper proposes a trajectory tracking method based on the morphological operator of the batter image of the arm stroke. Differentially calculate the image sequence of the hitting arm during two consecutive shots, estimate the Gaussian model parameters of the differential image of the hitting arm during the hitting process, extract the outline of the moving target of the hitting arm during the hitting process, and calculate the body posture ratio of the hitting target area And compactness, filter the background interference of the shot image fragment, construct a global matching approximation function of the moving target, and determine the motion trajectory of the badminton arm of the batter. Simulation results show that the proposed method can effectively track the target of the hitting arm during the hitting process and generate a continuous trajectory of the hitting arm.

Keywords: badminton; arm hitting; trajectory tracking.