Abstract
In order to improve the training effect of athletes, aiming at the problems of inaccurate information capture results, poor real-time performance of sports information capture, and inability to effectively suppress noise interference in traditional methods, an athlete space-time running information capture system based on virtual reality is designed. Establish the athlete’s human skeleton, obtain the athlete’s sports joint points, design the overall architecture of the athlete’s space-time running information capture system, and realize the whole link design of sports information capture through RF chip, infrared camera, sports data acquisition module, data transmission module, and human-computer interaction module. Based on virtual reality technology, a virtual reality environment is built to obtain the characteristic parameters of athletes’ sports posture in space-time domain, and the median filtering algorithm is used to filter the original signal to eliminate the impact of noise signal on athletes’ sports information capture. Finally, the activity of the motion region is detected, and the motion information is captured combined with the Gaussian mixture model. The experimental results show that the system designed in this paper has high accuracy and anti-interference and can realize the real-time capture of motion information.
Highlights
According to the training characteristics of athletes, an athlete sports information collection system is designed, which can collect relevant data according to the athlete’s training data by formulating a reliable communication protocol, using special instruments and transmitting them to the computer through IC card, display various data parameters, and automatically generate accurate training data from the original data by software [1,2,3]. rough the application of the system, it can provide auxiliary decisionmaking means for athletes to exercise scientifically and reasonably
Mature human motion capture systems in the market include optical, electromagnetic, and ultrasonic [4,5,6]. ese systems have disadvantages in practical application. ey have high requirements for the site and inconvenient installation. e most important thing is that the price is expensive, which is difficult for most athletes to afford, making it difficult for athletes’ motion capture systems to be popularized [7]
Reference [8] proposes a human knee motion capture system based on MATLAB
Summary
According to the training characteristics of athletes, an athlete sports information collection system is designed, which can collect relevant data according to the athlete’s training data by formulating a reliable communication protocol, using special instruments and transmitting them to the computer through IC card, display various data parameters, and automatically generate accurate training data from the original data by software [1,2,3]. rough the application of the system, it can provide auxiliary decisionmaking means for athletes to exercise scientifically and reasonably. Reference [8] proposes a human knee motion capture system based on MATLAB. A program is written to process the coordinated data of human lower limb marker points measured by motion capture and interpolate them. When capturing the motion of these joint points, the motion of the skeleton can be determined It can be seen from the skeleton model that the rotational motion degrees of freedom of each marked point are not the same. According to the rotational motion degrees of freedom of the marked points, they can be divided into four categories:. (4) Generally, this marker point has two rotational degrees of freedom, such as ankle marker point Such classification is helpful to reduce the time complexity of the algorithm and improve the accuracy of tracking in motion capture. In the specific operation process, too many marked points will increase the amount of calculation, and too few marked points will make the action impossible to be accurately restored, resulting in abnormal action. erefore, the number of marked points should be determined according to the task to be completed
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