Noncontact Defect Detection Method of Automobile Cylinder Block Based on SVM Algorithm

Table 3

Profile data of the cylinder top surface.

Experiment number	Contour of point 1		Contour of point 2		Contour of point 3		Contour of point 4
	Actual value	Error value	Actual value	Error value	Actual value	Error value	Actual value	Error value
1	236.0034	0.0034	236.0284	0.0284	236.0005	0.0005	235.976	−0.026
2	236.0096	0.0096	236.0178	0.0178	235.9985	−0.0017	235.9878	−0.0122
3	236.0023	0.0023	236.0166	0.0166	235.995	−0.007	235.9847	−0.0155
4	236.0058	0.0058	236.0285	0.0285	236.0076	0.0076	235.9792	−0.0208
5	236.0108	0.0108	236.0217	0.0215	235.9886	−0.0116	235.9853	−0.0147
6	235.9937	−0.0065	236.0207	0.0207	235.9966	−0.0036	235.9787	−0.0213
7	236.0001	0.0001	236.0198	0.0198	235.9955	−0.0047	235.9835	−0.0167
8	236.0088	0.0088	236.0164	0.0164	235.9948	−0.0054	235.986	−0.016
9	235.9983	−0.0019	236.0205	0.0203	235.9875	−0.0127	235.974	−0.029
10	235.9983	−0.0019	236.0188	0.0188	235.9947	−0.0053	235.983	−0.018
Average value	236.0031	0.0031	236.0209	0.0209	235.9959	−0.0044	235.9818	−0.0190