Image-Based Indoor Position Determination
AssigneeQUALCOMM Incorporated
InventorsRajarshi GUPTA, Saumitra Mohan DAS, Hui CHAO, Ayman Fawzy NAGUIB
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Abstract
In one implementation, a method may comprise: determining a topological representation of an indoor portion of a building based, at least in part, on positions or number of lines in an image of the indoor portion of the building; and comparing the topological representation to one or more stored topological representations, for example in a digital map of the building, to determine a potential position of the indoor portion of the building.
Claims31
A method comprising:
- extracting linear features from an image of an indoor portion of a building, said image captured by a camera at a mobile station;
- determining a topological representation of said indoor portion based, at least in part, on positions or quantity of said linear features in said image;
- and
- comparing said topological representation to stored topological representations of said building to determine a candidate position of said mobile station.
An apparatus comprising:
- means for extracting linear features from an image of an indoor portion of a building, said image captured by a camera at a mobile station;
- means for determining a topological representation of said indoor portion based, at least in part, on positions or quantity of said linear features in said image;
- and
- means for comparing said topological representation to stored topological representations of said building to determine a candidate position of said mobile station.
An apparatus comprising:
- one or more processing units configured to:
- extract linear features from an image of an indoor portion of a building, said image captured by a camera at a mobile station;
- determine a topological representation of said indoor portion based, at least in part, on positions or quantity of said linear features in said image;
- and
- compare said topological representation to stored topological representations of said building to determine a candidate position of said mobile station.
A non-transitory storage medium comprising machine-readable instructions stored thereon that are executable by a special purpose computing device to:
- extract linear features from an image of an indoor portion of a building, said image captured by a camera at a mobile station;
- determine a topological representation of said indoor portion based, at least in part, on positions or quantity of said linear features in said image;
- and
- compare said topological representation to stored topological representations of said building to determine a candidate position of said mobile station.
Dependencies are inferred from the claim text.