Table 4.

Recognition accuracy and average running time of six-classifying models.

Model	Highest Accuracy	Minimum Accuracy	Average Accuracy	Training Time/s	Test Time/s
CNN	99.16%	97.50%	98.33%	3064.5374	6.2243
SCN	97.68%	95.27%	96.90%	78.9466	0.0632