The video frequency images of pupil module sent from eye tracking system were processed to deduct the closure state of the pupil and figure out the PERCLOS value for the determination of fatigue.

• 通过对眼动仪瞳孔模块输出视频的图像处理,由此推断瞳孔的遮闭状态,计算出用于疲劳判定的眼睑闭合度值。