Automatic determination of the position of a tennis player using a pair of cameras | IEEE Conference Publication | IEEE Xplore

Automatic determination of the position of a tennis player using a pair of cameras


Abstract:

This paper describes an image processing method for an automatic determination of the position of a tennis player on a playground for further analysis of his motion. A te...Show More

Abstract:

This paper describes an image processing method for an automatic determination of the position of a tennis player on a playground for further analysis of his motion. A testing code was written in C++ with use of OpenCV libraries. The processing chain consists of several image processing techniques such as a camera calibration, background subtraction or finding the largest contours. The main objective has been achieved by finding and using a 2D homography (perspective projection matrix for points which lie on the pedestal plane) between a reference image of the first view and sequential captured images of the second view and vice versa. There were also used standardized dimensions of the tennis court for a determination of appropriate world coordinates system. Finally, there was used a linear triangulation technique for calculating 3D coordinates of corresponding points and output results discussed in context of real measurements and compared with detection using a pair of cameras. The advantages of this described method are especially variability and simple installation of a pair of sport cameras and real time data processing. The method was chosen and tested in the context of a future work. A camera calibration using external special patterns is not required.
Date of Conference: 05-07 July 2017
Date Added to IEEE Xplore: 23 October 2017
ISBN Information:
Conference Location: Barcelona, Spain

References

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