Improved Faster R-CNN Based Surface Defect Detection Algorithm for Plates

Table 3

Scratch defect detection results.

Defective texture background	Number of samples	Number of successful detections	Number of misses	Wrong number of checks	Positive inspection rate (%)
Same as the training set	100	98	—	1	98.50
Unlike the training set	40	36	3	1	91.60
Total	140	134	4	2	96.51