Safety Helmet Wearing Detection Based on Jetson Nano and Improved YOLOv5

Table 1

The results of model performance.

Models	Precision	Recall rate	Parameter (million)	Model size (MB)
YOLOv5s	90.5	88.7	7.01	14.4
YOLOv5s-SN	87.7	79.2	0.84	2.0
YOLOv5m	91.5	89.4	20.85	42.2
YOLOv5m-SN	88.8	82.6	2.02	4.4
YOLOv5l	90.5	90.7	46.11	92.8
YOLOv5l-SN	89.3	84.3	3.79	8.0