Development of Estimating Equation of Machine Operational Skill by Utilizing Eye Movement Measurement and Analysis of Stress and Fatigue

Table 2

Hypotheses based on characteristic indexes of eye motion.

Hypothesis no.		Vehicle velocity
		High			Low
		Driving skill
		Expert		Beginner	Expert		Beginner
𝐻1	Response time, 𝜂 [ms]	𝜂1	<	𝜂2	𝜂3	<	𝜂4
𝐻2	Fixation time, 𝑓 [ms]	𝑓1	≒	𝑓2	𝑓3	<	𝑓4
𝐻3	Frequency of saccade, 𝜇 [/s]	𝜇1	≒	𝜇2	𝜇3	>	𝜇4
𝐻4	Velocity of saccade, 𝑣 [deg/s]	𝑣1	<	𝑣2	𝑣3	<	𝑣4
𝐻5	Distance of saccade, 𝑑 [deg]	𝑑1	<	𝑑2	𝑑3	<	𝑑4