Rough Set Neural Network Feature Extraction and Pattern Recognition of Shaft Orbits Based on the Zernike Moment

Table 7

Statistics of training and recognition results of different recognition methods.

Serial number	Input	Time step	Error	Recognition rate (%)
Model 1	Hu moments (7 variables)	20000	0.00104	80
Model 2	Improved Hu moments (6 variables)	20000	0.00131	80
Model 3	Zernike moments (49 variables)	13153	0.001	90
Model 4	Zernike moments (13 variables)	9358	0.001	90