DATA PROCESSING DEVICE AND DATA PROCESSING METHOD

The disclosed data processing device installed in a vehicle includes an occupant state recognition unit that recognizes the action of an occupant of a vehicle pointing outside the vehicle, a peripheral circumstances acquisition unit that acquires the peripheral circumstances around the vehicle, an object recognition unit that recognizes the object pointed at by the occupant based on the recognition results obtained by the occupant state recognition unit and the acquisition results obtained by the peripheral circumstances acquisition unit, a relative direction determination unit that determines the relative direction of the object with respect to the vehicle, and a light control unit that controls the light emission appearance of an oblong shaped light-emitting unit installed above or below the windshield of the vehicle. The light control unit controls the light-emitting appearance such that the relative direction is identifiable based on the recognition results of the object recognition unit.