METHODS FOR DETERMINING A USER'S LOCATION USING POI VISIBILITY INFERENCE
First Claim
Patent Images
1. A method for determining a user'"'"'s location using at least one point of interest (POI) inference, the method comprising:
- identifying at least one point of interest (POI) within a line of sight of the user and having a predefined location on a map;
for each of the at least one POI, obtaining a visibility map representing an area within a line of sight of the POI; and
determining the user'"'"'s location based on an area common to each of the at least one visibility maps.
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Abstract
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.
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Citations
29 Claims
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1. A method for determining a user'"'"'s location using at least one point of interest (POI) inference, the method comprising:
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identifying at least one point of interest (POI) within a line of sight of the user and having a predefined location on a map; for each of the at least one POI, obtaining a visibility map representing an area within a line of sight of the POI; and determining the user'"'"'s location based on an area common to each of the at least one visibility maps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus configured to determine a user'"'"'s location, the apparatus comprising:
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a receiver configured to identify at least one point of interest (POI) within a line of sight of the user and having a predefined location on a map; and a processor configured to; for each of the at least one POI, obtain a visibility map representing an area within a line of sight of the POI; and determine the user'"'"'s location based on an area common to each of the at least one visibility maps. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An apparatus for determining a user'"'"'s location, the apparatus comprising:
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means for identifying at least one point of interest (POI) within a line of sight of the user and having a predefined location on a map; for each of the at least one POI, means for obtaining a visibility map representing an area within a line of sight of the POI; and means for determining the user'"'"'s location based on an area common to each of the at least one visibility maps. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A computer program product residing on a processor-readable medium and comprising processor-readable instructions configured to cause a processor to:
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identify at least one point of interest (POI) within a line of sight of the user and having a predefined location on a map; for each of the at least one POI, obtain a visibility map representing an area within a line of sight of the POI; and determine the user'"'"'s location based on an area common to each of the at least one visibility maps. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification