AROUSAL LEVEL ESTIMATION SYSTEM, AROUSAL LEVEL ESTIMATION DEVICE, AROUSAL LEVEL ESTIMATION METHOD AND PROGRAM

To highly accurately estimate an arousal level of a subject with a small amount of calculation by using biological data.SOLUTION: An arousal level estimation system includes a biological sensor for continuously measuring prescribed biological data relating to an arousal level of a subject, an acquisition part for acquiring the biological data from the biological sensor, a normalization process part for executing a prescribed normalization process on the biological data, a feature amount calculation part for calculating a prescribed feature amount based on biological data in an individual difference adjustment calibration section out of the biological data after the normalization process, a threshold calculation part for calculating a threshold based on a predetermined regression equation and the feature amount, and an estimation part for estimating an arousal level of the subject based on the threshold and the biological data after the calibration section out of the biological data after the normalization process.SELECTED DRAWING: Figure 2 【課題】生体データを用いて少ない計算量で高精度に対象者の覚醒度を推定する。【解決手段】実施形態の覚醒度推定システムは、対象者について覚醒度と関係のある所定の生体データを継続的に計測する生体センサと、前記生体センサから前記生体データを取得する取得部と、前記生体データに対して所定の正規化処理を行う正規化処理部と、前記正規化処理後の前記生体データのうち、個人差調整用のキャリブレーション区間の前記生体データに基づいて、所定の特徴量を算出する特徴量算出部と、予め定められた回帰式と、前記特徴量と、に基づいて、閾値を算出する閾値算出部と、前記閾値と、前記正規化処理後の前記生体データのうち、前記キャリブレーション区間後の前記生体データと、に基づいて、前記対象者の覚醒度を推定する推定部と、を備える。【選択図】図２