Patent ID: 8924153

Claim:
A navigation device comprising: an image acquiring unit that acquires an image from an image-capturing unit, which is mounted in a vehicle to capture an image of a feature on a road; a correction distance storing unit that stores a correction distance to correct a difference between a first vehicle position, which is a position of the vehicle when the feature disappears from an imaging area of the image-capturing unit, and a second vehicle position, which is a position of the vehicle when the feature disappears from a driver's view, the correction distance being along a travel direction of the vehicle; a judging unit that judges based on the image acquired by the image acquiring unit and the correction distance stored in the correction distance storing unit whether the vehicle has arrived at the second vehicle position; and a guidance unit that, if the judging unit has judged that the vehicle has arrived at the second vehicle position, provides guidance regarding the feature at a predetermined position having the second vehicle position as a reference.