A method for evaluating 3D cognitive fatigue based on a pupil reaction with a noncontact method is provided. The evaluation method comprises the steps of: acquiring a pupil image of a subject exposed to a target stimulus; calculating a task evoked pupillary response (TEPR) from the pupil image; detecting a positive dominant peak from a waveform of the TEPR; extracting a latency of the dominant peak; and determining whether cognitive fatigue of the subject occurs by comparing a value of the latency with a reference value.
3D Noncontact vision-based 3D cognitive fatigue measuring method by using task evoked pupillary response and System using the method