| 摘要 |
A system for analyzing a golf swing process includes a sensor system for simultaneously measuring human body movements, club head trajectories and the ball trajectories; a processor for reading data of the sensor system; synchronizing and processing the data; generating the human body 3D model, the club trajectories and the initial flying trajectory of the ball; and calculating a complete flying trajectory of the ball according to the initial flying trajectory; and a visual device, wherein the visual device provides the integrated display of the human body 3D model, the feet pressures, the club trajectories and the ball trajectories, for tracing the club trajectories according to the ball trajectories, and tracing the human 3D model and the feet pressures according to the club trajectories. A method for analyzing the golf swing process is also provided. |
| 主权项 |
1. A method for analyzing a golf swing process, comprising steps of:
(1) measuring 9-axis information of human body measuring points by a MEMS (micro-electro-mechanical system), wherein according to MEMS data, acceleration and angular velocity data of a human body are obtained; and by an integrating algorithm, club trajectories and human body rotation angles are obtained; (2) capturing space positions of a club head and a ball by infrared sensors, wherein according to infrared data, a ball initial flying trajectory, a ball initial flying speed, a ball initial flying angle, a hitting angle and speed of a club, and a club direction are calculated with detected space positions; (3) obtaining feet pressures and by a pressure sensor, and accumulating pressure data for calculating pressure values of feet, wherein forces and foot rotation in all directions are calculated with a differential algorithm; (4) capturing a body posture by a Kinect, wherein according to Kinect data, jitter points of skeleton data are removed with a filtering algorithm; (5) obtaining images of the club head and the ball by a camera, wherein the camera use pixel difference between frames for calculating the ball initial flying trajectory and rotation direction by an image processing algorithm; (6) calculating a complete ball flying trajectory according to the ball initial flying trajectory obtained by the infrared sensors and the camera; (7) according to measured data, calculating a human body 3D (3-dimensional) model, the feet pressures, the club trajectories and the ball trajectories by a processor; (8) synchronizing between the human body 3D model and the club trajectories, listing displaying human body 3D model parameters, feet pressure parameters and club trajectory parameters at key times in a table, and further generating curves thereof according to the table; (9) providing integrated display of the human body 3D model, the feet pressures, the club trajectories and the ball trajectories by displaying the human body 3D model parameters, the feet pressure parameters and the club trajectory parameters in one time coordinate; (10) predicting future ball trajectories by range limits of the human body 3D model and the club trajectories; and (11) according to any one of ball trajectory parameters, analyzing corresponding club trajectory parameters which change the one of the ball trajectory parameters; according to one of the corresponding club trajectory parameters, analyzing corresponding human body 3D model parameters and corresponding feet pressure parameters which change the one of the corresponding club trajectory parameters. |
