Complex Texture Contour Feature Extraction of Cracks in Timber Structures of Ancient Architecture Based on YOLO Algorithm

Table 6

YOLO v5 training results.

Epoch	Gpu_men	Box	Obj	Cls	Total	Labels	Img_size	Precision	Recall	mAP@0.5
0/449	1.81 G	0.1235	0.0733	0	0.1968	106	640	0.0037	0.0118	0.0002
1/449	1.86 G	0.1187	0.0811	0	0.1999	143	640	0.0048	0.0240	0.0003
2/449	1.88 G	0.1157	0.0848	0	0.2005	90	640	0.0087	0.0253	0.0007
3/449	1.88 G	0.1125	0.0855	0	0.1980	80	640	0.0225	0.0318	0.0035
4/449	1.88 G	0.1096	0.0911	0	0.2012	104	640	0.0427	0.0572	0.0095
445/449	1.88 G	0.0377	0.0613	0	0.0989	174	640	0.9345	0.8854	0.9330
446/449	1.88 G	0.0372	0.0627	0	0.0998	121	640	0.9326	0.8873	0.9341
447/449	1.88 G	0.0379	0.0614	0	0.0994	87	640	0.9220	0.8910	0.9310
448/449	1.88 G	0.0382	0.0606	0	0.0988	72	640	0.9401	0.8738	0.9309
449/449	1.88 G	0.0376	0.0599	0	0.0975	52	640	0.9273	0.8882	0.9291