4. A character recognition method, comprising: shooting an image using imaging means; measuring a shooting position of the image to obtain shooting position information indicating the shooting position; detecting a shooting direction of the image in order to obtain shooting direction information indicating the shooting direction; determining, based on the shooting position information and the shooting direction information, a range of a shooting object of the imaging means, extracting, from a position corresponding information storage means storing position corresponding information including words associated with respective positional information indicating positions of respective places, position corresponding information associated with positions included in the range; and recognizing, using the extracted position corresponding information, a character or a character string included in the image shot by the imaging means.
4. A character recognition method, comprising: shooting an image using imaging means; measuring a shooting position of the image to obtain shooting position information indicating the shooting position; detecting a shooting direction of the image in order to obtain shooting direction information indicating the shooting direction; determining, based on the shooting position information and the shooting direction information, a range of a shooting object of the imaging means, extracting, from a position corresponding information storage means storing position corresponding information including words associated with respective positional information indicating positions of respective places, position corresponding information associated with positions included in the range; and recognizing, using the extracted position corresponding information, a character or a character string included in the image shot by the imaging means. 5. The character recognition method in accordance with claim 4 , further comprising: extracting, from non-corresponding-to-position information storage means storing therein non-corresponding-to-position information including words not associated with the positional information, non-corresponding-to-position information according to the extracted position corresponding information; and recognizing a character or a character string included in the image using the extracted position corresponding information and the extracted non-corresponding-to-position information extracted.