Investigation of an Autofocusing Method for Visible Aerial Cameras Based on Image Processing Techniques

Table 1

Parameter “” experiment result.

Measurement times	mm			mm			mm			mm
	(mm)	(mm)	Error (mm)	(mm)	(mm)	Error (mm)	(mm)	(mm)	Error (mm)	(mm)	(mm)	Error (mm)
1	61.381	61.355	0.026	61.333	61.355	0.022	61.323	61.355	0.032	61.383	61.355	0.028
2	61.398	61.355	0.043	61.314	61.355	0.041	61.372	61.355	0.017	61.323	61.355	0.032
3	61.326	61.355	0.029	61.387	61.355	0.032	61.334	61.355	0.021	61.319	61.355	0.036
4	61.392	61.355	0.037	61.329	61.355	0.026	61.368	61.355	0.013	61.376	61.355	0.021
5	61.316	61.355	0.039	61.386	61.355	0.031	61.374	61.355	0.019	61.328	61.355	0.027
Average	—	—	0.035	—	—	0.030	—	—	0.020	—	—	0.029