VISUAL LINE STATE DETERMINATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a visual line state determination device capable of accurately determining whether a driver's visual line state is either a central vision state or a peripheral vision state.SOLUTION: A visual line state determination device 1 comprises: a driver monitoring camera 2 which captures images including each one of the right and left eyes of a driver; an eyeball rotational angle data acquisition unit 41 which acquires eyeball rotational angle data on each of the right and left eyes on the basis of the captured images; and a visual line state determination unit 45 which determines the driver's visual line state on the basis of an eyeball rotational angle histogram obtained from the eyeball rotational angle data of each of the right and left eyes. The visual line state determination unit 45 determines that the visual line state is a peripheral vision state when a difference in the most frequent value of the eyeball rotational angle histogram in each of the right and left eyes is above a threshold value, and determines that the visual line state is a central vision state when the difference is equal to or below the threshold value.SELECTED DRAWING: Figure 1