抄録
In this paper, we proposed the evaluation method of the sleepiness by oxygenated hemoglobin. The sleepiness by diver's operation can be considered as the factor of accidents. Therefore, we needed to have evaluated the sleepiness while driving. Then, we gave the driving task to the subjects and researched the relation of oxygenated hemoglobin. As the result of the experiment, compared with facial expression, oxygenated hemoglobin tends to be decreased gradually. Possibility of driver's sleepiness evaluation could be shown.
