Patent ID: 7991283

Claim:
A method of geotagging photographs using annotations comprising: reviewing an image for a labeled element wherein the labeled element comprises one or more selected from a group comprising street signs, buildings, billboards, cars, transportation elements; reviewing the image for an additional labeled element; using the global position of the elements, the relative size of the elements and a width of the image to estimate a focal length of the image; evaluating a known element data store to determine whether a known element in the known element data store is sufficiently similar to the labeled element; if the data store contains a sufficiently similar known element to the labeled element, obtaining the global position of the known element; comparing the additional labeled element to the known element data store to determine if a sufficiently similar additional known element to the additional labeled element is in the data store; if a sufficiently similar element to the additional labeled element is in the known element data store, obtaining the global position of the additional known element; evaluating the global position of the known element and the additional known element to determine an image region wherein the image region comprises a geographic area from which the image was created; adding additional labels to the image by using geospatial data and building recognition to add labels to additional recognized buildings; and if the labeled element and additional labeled element are accurately labeled, storing the image as an approved tagged image.