Inattentive state determination apparatus and method of determining inattentive state

摘要

An inattentive state determination apparatus being placed in a vehicle includes an image taking section, an orientation detection section, a determination section, a warning section, a shape detection section, and a setting section. The image taking section successively takes images of a face of a determination target. Based on the images, the orientation detection section and the shape detection section detect a determination target orientation and a hand shape, respectively. The determination section determines whether the determination target is in an inattentive state based on the determination target orientation by determining an inattentive state determination condition. The warning section notifies the inattentive state by outputting an audio warning corresponding to a parameter of the audio warning. The setting section sets at least one of the inattentive state determination condition and the parameter of the audio warning based on the hand shape and the determination target orientation.