INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHOD

An information processing device includes a video obtaining unit that obtains a video of the outside of a vehicle as taken by a camera installed in the vehicle; a position information obtaining unit that obtains the position information of the vehicle; a person detecting unit that detects persons based on the face images included in the video obtained by the video obtaining unit; an eye gaze direction determining unit that determines the direction of eye gaze of each person detected by the person detecting unit; a degree-of-interest determining unit that, based on the directions of eye gaze as determined by the eye gaze direction determining unit, determines the degrees of vehicle interest with respect to the vehicle; and a route setting unit that associates the position information and the degrees of vehicle interest, and sets a route that should be taken.