Table 1.

Overall performance of 4-posture coarse-grained and 7-posture fine-grained classification model trained by convolution neural network.

Performance	4-Posture Coarse Classification	7-Posture Fine-Grained Classification
Accuracy	97.5%	89.0%
Recall	97.3%	89.0%
Precision	97.0%	88.9%
F1 score	97.1%	88.9%
Cohen’s kappa coefficient	0.970	0.891