Patent ID: 8712689

Claim:
A method for the computer-aided determination of a position of a mobile device on a photographic image of a map, comprising: obtaining a digitized photographic image of the map, wherein the map is a non-geo-referenced map; storing the digitized photographic image of the map in a data memory; calibrating, by a processor, the digitized photographic image of the map in space coordinates by selecting at least one point of the digitized image of the map and a supplementary calibration information based on information provided by the photographic image of the map which enables the digitized image of the map to be calibrated in space coordinates; determining the position of the mobile device in space coordinates; and determining the position of the mobile device on the digitized photographic image of the map by mapping the position of the mobile device in space coordinates to a position on the digitized photographic image of the map based on the calibration of the digitized photographic image of the map in space coordinates.