PROBLEM TO BE SOLVED: To accurately perform estimation of a drivers diminished attentiveness state by a simple structure in a driver state estimation device.SOLUTION: The driver state estimation device for estimating a drivers diminished attentiveness state based on biological information of the driver who drives a vehicle or vehicle information includes a weak identification means which identifies a plurality of feature quantities showing the input biological information or vehicle information in a binary manner a state estimation means which estimates a diminished attentiveness state for driving of the driver based on the identification result of the plurality of feature quantities by the weak identification means and a learning means which learns a relation between each of the plurality of feature quantities and the diminished attentiveness state of the driver to be used for the identification by the weak identification means or the estimation by the state estimation means by use of Ada Boost.COPYRIGHT: (C)2010,JPO&INPIT【課題】本発明は、運転者状態推定装置に関し、運転者の注意力低下状態の推定を簡易な構成でかつ精度よく実現することにある。【解決手段】車両を運転する運転者の生体情報又は車両情報に基づいて該運転者の注意力低下状態を推定する運転者状態推定装置において、入力される生体情報又は車両情報を示す複数の特徴量をそれぞれ2値的に識別する弱識別手段と、弱識別手段による複数の特徴量の識別結果に基づいて運転者の運転に対する注意力低下状態を推定する状態推定手段と、弱識別手段による識別又は状態推定手段による推定に用いる、複数の特徴量それぞれと運転者の注意力低下状態との関係をAdaBoostを用いて学習する学習手段と、を備える。【選択図】図2
