Detecting the location of a mobile device based on semantic indicators
First Claim
1. A computer implemented method, comprising:
- receiving, using one or more processors, a plurality of images captured by a mobile device at an area, the area being associated with a set of candidate locations;
detecting, using the one or more processors, a first type of feature indicator and a second type of feature indicator associated with the plurality of images, the first type of feature indicator being different than the second type of feature indicator, the first and the second types of feature indicators including types of semantic features related to interior portions of the area, the types of semantic features for the first type of feature indicator including at least one of;
1) surface textures of interior objects,
2) patterns of interior elements,
3) interior architecture, or
4) interior dé
cor and the types of semantic features for the second type of feature indicator including at least one of;
1) interior noise or
2) interior music;
identifying, using the one or more processors, a set of feature indicators including a combination of the first type of feature indicator and the second type of feature indicator;
comparing, using the one or more processors, the set of feature indicators with a plurality of stored location feature sets;
calculating a score for one or more of the set of candidate locations based on at least a number of matching semantic features, wherein the score is weighted based on the type of semantic feature used in the comparison, such that the types of semantic features for the first type of feature indicator is weighted differently than the types of semantic features for the second type of feature indicator;
selecting, using the one or more processors, a location from the set of candidate locations based at least in part on the comparison; and
estimating, using the one or more processors, a position of the mobile device based at least in part on the selected location.
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Abstract
A system and computer implemented method for detecting the location of a mobile device using semantic indicators is provided. The method includes receiving, using one or more processors, a plurality of images captured by a mobile device at an area. The area is associated with a set of candidate locations. Using the one or more processors, one or more feature indicators associated with the plurality of images are detected. These feature indicators include semantic features related to the area. The semantic features are compared with a plurality of stored location features for the set of candidate locations. In accordance with the comparison, a location from the set of candidate locations is selected to identify an estimated position of the mobile device.
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Citations
20 Claims
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1. A computer implemented method, comprising:
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receiving, using one or more processors, a plurality of images captured by a mobile device at an area, the area being associated with a set of candidate locations; detecting, using the one or more processors, a first type of feature indicator and a second type of feature indicator associated with the plurality of images, the first type of feature indicator being different than the second type of feature indicator, the first and the second types of feature indicators including types of semantic features related to interior portions of the area, the types of semantic features for the first type of feature indicator including at least one of;
1) surface textures of interior objects,
2) patterns of interior elements,
3) interior architecture, or
4) interior dé
cor and the types of semantic features for the second type of feature indicator including at least one of;
1) interior noise or
2) interior music;identifying, using the one or more processors, a set of feature indicators including a combination of the first type of feature indicator and the second type of feature indicator; comparing, using the one or more processors, the set of feature indicators with a plurality of stored location feature sets; calculating a score for one or more of the set of candidate locations based on at least a number of matching semantic features, wherein the score is weighted based on the type of semantic feature used in the comparison, such that the types of semantic features for the first type of feature indicator is weighted differently than the types of semantic features for the second type of feature indicator; selecting, using the one or more processors, a location from the set of candidate locations based at least in part on the comparison; and estimating, using the one or more processors, a position of the mobile device based at least in part on the selected location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A non-transitory computer readable medium storing instructions that, when executed by one or more processors, cause the one or more processors to perform a method, the method comprising:
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receiving a plurality of images captured by a mobile device at an area, the area being associated with a set of candidate locations; detecting a first type of feature indicator and a second type of feature indicator associated with the plurality of images, the first type of feature indicator being different than the second type of feature indicator, the first and the second types of feature indicators including types of semantic features related to interior portions of the area, the semantic features for the first type of feature indicator including at least one of;
1) surface textures of interior objects,
2) patterns of interior elements,
3) interior architecture, or
4) interior dé
cor and the types of semantic features for the second type of feature indicator including at least one of;
1) interior noise or
2) interior music;identifying a set of feature indicators including a combination of the first type of feature indicator and the second type of feature indicator; comparing the set of feature indicators with a plurality of stored location feature sets for the set of candidate locations; calculating a score for one or more of the set of candidate locations based on at least a number of matching semantic features, wherein the score is weighted based on the type of semantic feature used in the comparison, such that the types of semantic features for the first type of feature indicator is weighted differently than the types of semantic features for the second type of feature indicator; selecting a location from the set of candidate locations based at least in part on the comparison; and estimating a position of the mobile device based at least in part on the selected location. - View Dependent Claims (11)
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12. A system comprising:
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a memory storing a plurality of location features for a set of candidate locations; and one or more processors in communication with the memory, the one or more processors being configured to; receive a plurality of images captured by a mobile device at an area, the area being associated with a set of candidate locations; detect a first type of feature indicator and a second type of feature indicator associated with the plurality of images, the first type of feature indicator being different than the second type of feature indicator, the first and the second types of feature indicators including types of semantic features related to interior portions of the area, the types of semantic features for the first type of feature indicator including at least one of;
1) surface textures of interior objects,
2) patterns of interior elements,
3) interior architecture, or
4) interior dé
cor and the types of semantic features for the second type of feature indicator including at least one of;
1) interior noise or
2) interior music;identify a set of feature indicators including a combination of the first type of feature indicator and the second type of feature indicator; compare the set of feature indicators with a plurality of location feature sets stored in the memory; calculate a score for one or more of the set of candidate locations based on at least a number of matching semantic features, wherein the score is weighted based on the type of semantic feature used in the comparison, such that the types of semantic features for the first type of feature indicator is weighted differently than the types of semantic features for the second type of feature indicator; select a location from the set of candidate locations based at least in part on the comparison; and estimate a position of the mobile device based at least in part on the selected location. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification