The detection of drowsiness using a driver monitoring system

Figures & data

Figure 1. NADS-1 simulator: (a) dome exterior, (b) dome interior, (c) DMS location, and (d) DMS camera view.

Table 1. Model performance statistics with test set.

Statistic	VEH	DMS	BOTH	BIN
Accuracy	0.63	0.78	0.82	0.83
NIR	0.58	0.58	0.58	0.60
P value	<.001	<.001	<.001	<.001
Log loss	0.77	0.64	0.59	0.46
MROC	0.73	0.79	0.79	0.90^a

^a Traditional AUC.

Figure 2. Distribution of ORD ratings among possible values (0–4).

Figure 3. ROC curve for binary model.

Table 2. Three-class model confusion matrix for prediction of ORDs.

Prediction	Reference
ORD	0–1	2	3–4
0–1	394	133	0
2	62	527	13
3–4	0	0	0