Fig 1.
BPNN structure.
Fig 2.
Algorithm process of BPNN.
Table 1.
Comparison of single-action recognition accuracy rate in MHAD dataset.
Table 2.
The recognition results of classifiers of random forest, support vector machine, and Bayesian network.
Fig 3.
Comparison of the results in the experimental group before and after the experiment (Note: * indicates that the difference is statistically significant).
Fig 4.
Comparison of the results between the experimental and control groups(Note: * Indicates a significant difference).
Table 3.
Performance test results of hidden nodes of the BPNN algorithm.
Fig 5.
Simulation results of BPNN.
Fig 6.
The accuracy of kicking actions of players in the experimental group.
Fig 7.
The accuracy of kicking actions of players in the control group.