Problem to be solved: to provide a passenger observation device capable of maintaining the accuracy of the state estimation of the occupant.An image pickup section for capturing a head of a vehicle occupantIn the image picked up by the imaging sectionAt least an eye detector for detecting part of the eye of the occupant；In the image picked up by the imaging sectionAt least a mouth detector for detecting part of the mouth of the occupantA state estimation unit for estimating the state of the occupant based on the detection result of the eye detection part and the detection result of the above described mouth detecting partEquipped withSaid state estimation unitBased on the result of the detection of the eye detection part or the result of the processing performed based on the detection result of the eye detection partThe ratio of the detection result of the eye detecting portion and the result of the detection of the above described detecting portion to the estimation of the state of the occupant is changed.Crew observation device.Diagram【課題】乗員の状態推定の精度を高く維持することができる乗員観察装置を提供すること。【解決手段】車両の乗員の頭部を撮像する撮像部と、前記撮像部により撮像された画像において、少なくとも前記乗員の眼の一部を検出する眼検出部と、前記撮像部により撮像された画像において、少なくとも前記乗員の口の一部を検出する口検出部と、前記眼検出部の検出結果と前記口検出部の検出結果とに基づいて前記乗員の状態を推定する状態推定部と、を備え、前記状態推定部は、前記眼検出部の検出結果または前記眼検出部の検出結果に基づいて行われる処理の結果に基づいて、前記眼検出部の検出結果と前記口検出部の検出結果とのそれぞれを前記乗員の状態の推定に反映させる割合を変更する、乗員観察装置。【選択図】図１
