Fault Detection Method Based on Improved Faster R-CNN: Take ResNet-50 as an Example

Table 4

Different sizes and different proportions of the anchor frame on the fault test results.

The size and proportion of the anchor frame	Types of anchor frames	Anchor frame ratio	Number of faults detected
1 size and 1 ratio	1282	1 : 01	174
1 size and 3 ratio	1282	{2 : 1,1 : 1,1 : 2}	221
3 size and 1 ratio	{128^2, 256^2, 512^2}	1 : 01	246
3 size and 3 ratio	{128^2, 256^2, 512^2}	{2 : 1,1 : 1,1 : 2}	269
5 size and 3 ratio	{32^2, 64^2, 128^2, 256^2, 512^2}	{2 : 1,1 : 1,1 : 2}	274