Safety Helmet Wearing Detection Based on Jetson Nano and Improved YOLOv5

Table 2

Detection performance of the models improved by the network lightweight improvement method.

Models	Model format	Processing speed (ms/f)	Precision (%)	Recall rate (%)
YOLOv5s	pt	116.9	90.5	88.7
YOLOv5s-SN	pt	44.9	87.7	79.2
YOLOv5m	pt	277.1	91.5	89.4
YOLOv5m-SN	pt	64.6	88.8	82.6
YOLOv5l	pt	500.9	90.5	90.7
YOLOv5l-SN	pt	93.1	89.3	84.3