Navigation device and image management method

A navigation device for a mobile body, comprising:

• a current position detecting unit detecting a current position;
• an image capturing unit;
• an image file storage unit storing data of an image captured by the image capturing unit;
• a map storage unit storing map information;
• and
• a display unit displaying a map image, wherein
• the navigation device further comprising:
• a moving state detecting unit detecting whether the mobile body is in a moving state or in a stopping state;
• a character string extraction unit extracting, from the map information, at least one of character strings representing a name of a place, a facility, a road, and an intersection at or near a current position;
• and
• a file name determination unit determining a file name of data of an image captured by the image capturing unit, wherein
• when the image capturing unit captures an image, a file name of data of the captured image is determined by combining a moving state detected by the moving state detecting unit, a character string extracted by the character string extraction unit, and a predetermined character string that is provided beforehand in the file name determination unit.

An image management method comprising steps of:

• generating a captured image of an area near a mobile body by an image capturing unit;
• detecting a moving state of the mobile body whether the mobile body is in a moving state or in a stopping state;
• obtaining current position information by extracting, from map information, at least one of character strings representing a name of a place, a facility, a road, and an intersection at or near the current position;
• and
• determining a name of the captured image by combining a predetermined character string that is prepared beforehand, the moving state, and the current position information.