Key Technologies of Steel Plate Surface Defect Detection System Based on Artificial Intelligence Machine Vision

Table 2

Invariant moment feature extraction data table.

Sample defect type	IM1	IM2	IM3	IM4	IM5	IM6	IM7
The crack itself	3.9843	17.7438	7.6313	2.6201	4.3140	5.4762	12.6321
Crack right	3.3242	10.8950	7.3796	2.3861	4.6513	1.3793	7.2141
Crack left	3.5124	11.3472	9.3724	2.3912	2.6724	1.6742	6.3241
Crack transpose	3.9843	17.7438	9.1313	2.1201	3.8140	0.4762	12.6321
The hole itself	5.7260	31.5000	27.8151	27.1595	15.6138	19.4741	9.6081
Hole moves right	5.7260	31.5000	27.8151	27.1595	15.6138	19.4741	9.6081
Hole moves left	5.7260	31.5000	27.8151	27.1595	15.6138	19.4741	9.6081
Hole transposition	5.7260	31.5000	27.8151	27.1595	15.6138	0.8770	9.6081
Bruise itself	2.7234	4.7278	7.5965	6.4868	8.2521	9.7417	9.6433
Bruise shifts right	2.5343	2.9342	1.2417	7.5237	3.8921	5.8660	5.4276
Bruise shifts left	2.5621	3.1137	1.2887	45181	2.7710	2.7770	0.3873
Bruise transposition	2.7234	4.7278	0.5965	2.4868	0.2521	2.7417	0.6433