Multi-Inertial Sensor-Based Arm 3D Motion Tracking Using Elman Neural Network

Table 2

Performance indices of new estimations on the -axis of the elbow.

Motion				Motion
FSL
1	56.8	179.9	0.92	FS	1	20.5	60.2	0.81
2	55.2	132.6	0.73		2	29.6	50.8	0.84
3	46.3	133.5	0.80		3	40.5	57.4	0.97
4	29.9	103.3	0.95		4	31.6	69.7	0.87
LSL
1	22.1	72.0	0.94	ESL	1	16.4	48.0	0.92
2	39.0	142.9	0.87		2	37.2	72.1	0.79
3	50.3	122.3	0.89		3	21.6	57.2	0.91
4	23.7	61.1	0.92		4	41.0	70.6	0.96

Each motion has one well-trained model, which is applied to estimate another four independent actions. The italicized values highlight the models that perform worse.