Model of Driver’s Eye Movement and ECG Index under Tunnel Environment Based on Spatiotemporal Data

<div>Piecewise cubic spline interpolation function model of average pupil diameter. (a) Piecewise cubic spline interpolation function. (b) Function f1 fitting. (c) Function f2 fitting. (d) Function f3 fitting.</div>

Journal of Advanced Transportation

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Figure 5

Figure 5: Model of Driver’s Eye Movement and ECG Index under Tunnel Environment Based on Spatiotemporal Data 