An Intelligent Vision-Based Method of Worker Identification for Industrial Internet of Things (IoT)

Table 5

Identification of types of helmets.

One	Two	Three	Four	Five
	RN	YRN		YRBWN
	YN	YBN
Y	BN	YWN	YRBN
R	WN	BWN	YRWB
B	RY	BRN	YBWN
W	RW	RWN	RWYN
N	RB	YRB	RBWN
	YB	YBW
	YW	RBW
	BW	YRW