OCCUPANT STATE MONITORING APPARATUS

An occupant state monitoring apparatus includes an imager, a storage, and a calculation controller. The imager is configured to capture an image of an occupant who is in a vehicle. The storage is configured to store vehicle member coordinates that are position information of a vehicle member of the vehicle. The calculation controller is configured to calculate, based on the image, gaze coordinates representing a position at which the occupant gazes, and determine a state of the occupant based on the gaze coordinates and the vehicle member coordinates.