Real-time measurement of ping-pong ball velocity based on image processing

Tao Hu; Jing Yang; Zhaobang Pu

doi:10.1117/12.483249

16 September 2002 Real-time measurement of ping-pong ball velocity based on image processing

Tao Hu, Jing Yang, Zhaobang Pu

Proceedings Volume 4929, Optical Information Processing Technology; (2002) https://doi.org/10.1117/12.483249
Event: Photonics Asia, 2002, Shanghai, China

Abstract

In this paper, we described a real-time measurement technique for analyzing flying ping-pong ball movement. A high picking rate CCD camera was selected, and the ping-pong ball was marked with two different colors. A fast algorithm which applied dynamic windows to determine the position of object was introduced. Through position-finding of mass center, measurement of the highest linear speed 40m/s can be obtained. Technique of FFT processes video images of marks on a ping-pang ball to get rotational speed. The highest rotatory speed of this measurement can reaches 200 r/s. The preliminary experimental results were obtained and its performance coincided with the theory. Relative error of this system was better than 5%.

Citation Download Citation

Tao Hu, Jing Yang, and Zhaobang Pu "Real-time measurement of ping-pong ball velocity based on image processing", Proc. SPIE 4929, Optical Information Processing Technology, (16 September 2002); https://doi.org/10.1117/12.483249

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