Patent ID: 7706972

Claim:
A navigation apparatus, comprising: a front side image display unit for displaying an image of a front side and a back side image display unit for displaying an image of a back side, each image being one of images which stereoscopically overlap along a line of sight; a measuring unit for measuring a current position of an own vehicle; a map storage unit for storing map data which includes information indicating whether or not a feature is an elevated road and data of an image of a road; and a control unit for controlling an image of a map around a position of the own vehicle to be displayed on the front side image display unit and back side image display unit, by acquiring the map data of a predetermined area, where the current position of the own vehicle is included, from the map storage unit, based on the current position of the own vehicle measured by the measuring unit, wherein the control unit transmits the data of an image of a road of the acquired map data to the back side image display unit and determines whether or not the elevated road exists in the predetermined area, based on the information indicating whether or not the feature, which is registered as the map data, is the elevated road, wherein when the control unit determines that the elevated road exists in the predetermined area, the control unit determines whether or not the current position of the own vehicle is on the elevated road, based on the current position of the own vehicle measured by the measuring unit, wherein when the current position of the own vehicle is not on the elevated road, the control unit transmits data of an image of the elevated road included in the map data to the front side image display unit, wherein the front side image display unit draws the image of the elevated road so that an image drawn on the back side image display unit can be visually percepted.