Table 1.

Error and time comparison under different iteration times.

model	1 time		100 times		500 times		1000 times
	Error/%	Time/s	Error/%	Time/s	Error/%	Time/s	Error/%	Time/s
Hyperface	48.27	97	4.87	198	0.93	869	0.86	2008
Aggregate channel features	35.42	86	4.19	150	0.81	812	0.79	1643
R-FCN	33.29	77	3.65	109	0.71	648	0.61	1200
Single shot detector	30.15	75	3.24	100	0.66	620	0.52	1105
Two-stage CNN	30.58	63	2.93	97	0.59	582	0.38	974
Faster-RCNN	27.34	51	2.42	84	0.47	409	0.21	811
UPL-RCNN	23.62	42	2.21	76	0.31	378	0.09	723