Study on the Automatic Basketball Shooting System Based on the Background Subtraction Method

Author:

Hu Yan1ORCID,Xu Yong2

Affiliation:

1. Beijing Sport University & Humanities and Social Sciences Division, ChengDu Sport University & School of Economics and Management, Beijing 100084, China

2. North China University of Technology, Beijing 100144, China

Abstract

There are many drawbacks such as clustering, background updating, inaccurate testing results, and low anti-interference performance in traditional moving target detection theory. In our study, a background subtraction method to automatically capture the basketball shooting trajectory was used to eliminate the drawbacks of the fixed-point shooting system such as cumbersome installation and time and manpower consumption. It also can improve the accuracy and efficiency of moving target detection. We also synthetically compared to common methods including the optical flow method and interframe difference method. Results showed that the background subtraction method has better accuracy with an accuracy rate over about 90% than the interframe subtraction method (88%) and the optimal flow method (85%) and presents excellent robustness with considering variable speed and nonrigid objects. Meanwhile, the automatic detection system for basketball shooting based on background subtraction is built by coupling background subtraction with detection characteristics. The system detection speed built is further accelerated, and the image denoising is improved. The trajectory error rate is about 0.3, 0.4, and 0.5 for the background subtraction method, interframe subtraction method, and optimal flow method, respectively.

Publisher

Hindawi Limited

Subject

Computer Science Applications,Software

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