Methods for comparing three-dimensional motion trajectories

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DOI

Tomasz Waldemar Samorow

s95553@pollub.edu.pl

Maria Skublewska-Paszkowska

maria.paszkowska@pollub.pl

https://orcid.org/0000-0002-0760-7126

Abstract

Analysis of three-dimensional motion trajectories plays an important role in medicine, sports, robotics, and the entertainment industry. This research aims to compare the performance of the following six trajectory analysis algorithms: Euclidean Distance, Mean Squared Error, Dynamic Time Warping, Fréchet Distance, Fuzzy C-Means, and Fuzzy Similarity in terms of scalability, accuracy, computational efficiency, and robustness to speed variations. The research was conducted on the 3DTennisDS dataset containing tennis stroke trajectories recorded with the Vicon motion capture system. Results showed that fuzzy methods offer the best combination of accuracy (Fuzzy Similarity: 0.92, FCM: 0.89) and computational efficiency while maintaining high resistance to dynamic movements. In conclusion, fuzzy algorithms provide the most balanced solution for trajectory comparison in practical applications.

Keywords:

motion capture, 3D motion, tennis, trajectory-comparison algorithms

References

Article Details

Samorow, T. W., & Skublewska-Paszkowska, M. (2025). Methods for comparing three-dimensional motion trajectories. Journal of Computer Sciences Institute, 37, 399–404. https://doi.org/10.35784/jcsi.7929