METHODS FOR DETERMINING A USER'S LOCATION USING POI VISIBILITY INFERENCE

摘要

Apparatuses, methods, systems and computer-readable media for using visibility maps of identified points of interest (POIs) to determine a user's location are presented. Users may determine their locations without relying on a global positioning technique, such as GPS or A-GPS. A user may instead rely on POIs identifiable from the user's visual field of view, and determine position based on the common area visible to each identified POI.