YOLOv4 [16]

YOLOv3 [17]

SSD

Faster R-CNN

Ours (CIoU)

Helmet mAP

92.97%

91.94%

87.09%

92.93%

93.87%

Head mAP

88.99%

78.22%

67.12%

85.09%

91.59%

mAP

90.98%

85.08%

77.11%

88.66%

92.73%