PROBLEM TO BE SOLVED: To provide a driver state determination method and determination device thereof capable of highly accurately determining the concentration level of a driver with a simple configuration by detecting a visual sense error reduction action of the driver.SOLUTION: A driver state determination device 1 for determining a driving state on the basis of a driving action of a driver includes: an in-vehicle CCD 5 capable of capturing the image of a face of the driver a face direction detection section 7a for detecting the face direction F of the driver a visual line direction detection section 7b for detecting the visual line direction D of the driver and a concentration level determination section 7d for determining that the concentration level C of the driver is increased when a lateral acceleration works on a vehicle V and also a deviation amount G of the visual line direction D detected by the visual line direction detection section 7b with respect to the face direction F is reduced.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】運転者による視覚誤差の低減動作を検出することにより、簡易な構成で運転者の集中度合を高精度に判定することができる運転者状態判定方法及びその判定装置を提供する。【解決手段】運転者による運転動作に基づいて運転状態を判定する運転者状態判定装置1において、運転者の顔面を撮像可能な車内CCD5と、運転者の顔向き方向Fを検出する顔向き方向検出部7aと、運転者の視線方向Dを検出する視線方向検出部7bと、車両Vに横加速度が作用し且つ視線方向検出部7bによって検出された視線方向Dの顔向き方向Fに対するずれ量Gが減少したとき、運転者の集中度合Cが増加したと判定する集中度合判定部7dとを備えた。【選択図】 図2
