Abstract: A navigation device presenting guide information based on a photographed image of a boarding guide display item, such as a station name signboard, a roll sign, or a route map, that can be photographed in a station yard. The device acquires a photographed image of a boarding guide display item by controlling the photographing unit, identifies display content from the photographed image of the boarding guide display item of a transportation device acquired and specifying a route, station name, and traveling direction of a current position based on the identified display content and traffic network data stored in the storage unit, extracts station names present in the traveling direction from the traffic network data based on the route, station name, and traveling direction of the current position, and generates guide information including at least part of the extracted station names, and outputs at least part of the generated guide information.

Abstract: A navigation device providing an operation screen that enables a user to select an arbitrary place that is present in a photographed image as an input unit of data search conditions and accurately performing a data search for a place selected on the operation screen in an easy manner. The device specifies map data that corresponds to the photographed image based on the display content identified from the photographed image, generates an operation screen, on which display areas of name information included in the map data are set as selectable areas, used for selecting a specific place by using the specified map data, extracts guide information that coincides with name information based on the set name information that corresponds to the selectable area that is selected out of selectable areas on the displayed operation screen on the display unit, and displays the generated guide screen on the display unit.

Abstract: A navigation device presenting guide information based on a photographed image of a boarding guide display item, such as a station name signboard, a roll sign, or a route map, that can be photographed in a station yard. The device acquires a photographed image of a boarding guide display item by controlling the photographing unit, identifies display content from the photographed image of the boarding guide display item of a transportation device acquired and specifying a route, station name, and traveling direction of a current position based on the identified display content and traffic network data stored in the storage unit, extracts station names present in the traveling direction from the traffic network data based on the route, station name, and traveling direction of the current position, and generates guide information including at least part of the extracted station names, and outputs at least part of the generated guide information.