1. A method, comprising: sensing visual information with visual sensing resources in an apparatus; extracting one or more visual elements from the visual information; sensing at least one of signal or field information with at least one of signal or field sensing resources in the apparatus; determining general location information for the apparatus by comparing the at least one of signal or field information to information stored in a mapping database; and determining a specific position for the apparatus by comparing the one or more visual elements to the general location information stored in the mapping database.