Table 3.

Performance comparison results of different algorithms on each data set.

Algorithm	Angle range				Mean
	[0,20)	[20,40)	[40,60)	[60,80)
SqueezeNet [47]	2.72	3.46	4.74	6.74	4.42
Xception [48]	2.53	3.68	4.51	5.92	4.16
LBP [49]	3.75	4.23	5.35	7.49	5.21
ShuffleNetV2 [50]	2.46	3.84	4.73	6.43	4.37
MobileNetV2 [51]	3.62	4.45	5.22	7.37	5.17
This method	2.24	3.13	4.34	5.28	3.75