Abstract: Methods, systems, computer-readable media, and apparatuses for image-based status determination are presented. In some embodiments, a method includes capturing at least one image of a moving path. At least one feature within the at least one image is analyzed and based on the analysis of the at least one feature, a direction of movement of the moving path is determined. In some embodiments, a method includes capturing an image of an inclined path. At least one feature within the image is analyzed and based on analysis of the at least one feature, a determination is made whether the image was captured from a top position relative to the inclined path or a bottom position relative to the inclined path.

Abstract: Techniques for providing improved navigation through an indoor environment using a mobile device are provided. A method according to these techniques includes accessing a 2D map of the indoor environment, accessing customization information comprising one or more attributes to be applied to a 3D model of the indoor environment derived from the 2D map, analyzing the 2D map to extract geometry information associated with the layout of the indoor environment, generating the 3D model based on the geometry extracted from the 2D map and the customization information, generating a 3D representation of a current location of the mobile device within the indoor environment based on the 3D model; and displaying the 3D representation on a display of the mobile device.

Abstract: Methods and devices are described for providing localized secure navigation in conjunction with near field communication access control systems. In one potential embodiment, a mobile device such as a cell phone may communicate with a door access control point using near field communication to receive location access system information. The mobile device may then authorize download and execution of a local secure navigation module from a location access system using the location access system information for use in receiving location assistance data, based on an authentication level associated with the mobile device. Such location assistance data may be used by the local secure navigation module to provide location assistance when the mobile device is in a secure location. The location of the mobile device may then be tracked using at least the location assistance data and the communication with the door access control point.

Abstract: A method and apparatus for broadcasting short interframe space information to aid in determining a round trip time are provided. The round trip time is used as an aid in locating nodes within a WiFi or WLAN network. The method begins with capturing a time of transmission of a frame by a transmitting station. The receiving station then captures the time of arrival of the frame just sent by the transmitting station. The receiving station replies with a received frame message and the time of departure is captured. The transmitting station then captures the time of arrival of the received frame message. The captured arrival and departure times of the frame and the received frame message allow the round trip time to be computed. The RTT may then be included as part of a network message.

Abstract: Methods, apparatuses, and devices for rendering indoor maps on a display device of, for example, a mobile device, are presented. In one example, a processor of a mobile device may receive identifiers, such as alphanumeric identifiers, for points of interest (POI) and map at least portions of the identifiers to colors within a suitable color space, such as a RGB color space.

Abstract: An embodiment is directed to generating a polygon representation of a plurality of points of interest (POIs) in a scene having a corresponding base level map of the scene, and creating a new level map including a reduced number of polygon representations of POIs on the basis of elimination of POIs having a lower than specified POI importance level. In another embodiment, a mobile device (e.g., the user device) can specify the specified POI importance level to trigger the generation and delivery of the new level map which conforms to the specified POI importance level so that the new level map can be displayed to a user of the mobile device (e.g., in conjunction with navigation instructions to one or more of the remaining POIs).

Abstract: Disclosed are apparatuses and methods for enabling the use of global navigation satellite system (GNSS) signals indoors. The method may include determining a first indoor position of the mobile device based on indoor transceiver signals. The method may also include determining, based at least in part on the determined first indoor position, that global navigation satellite system (GNSS) positioning signals are available. The method may also include determining a second indoor position of the mobile device based, at least in part, on GNSS positioning signals.

Abstract: Systems, apparatus and methods disclosed herein facilitate mobile station (MS) location determination using MS captured images of known points of interest (POIs). In some embodiments, each POI is associated with a corresponding visibility map comprising a set of grid points, and a subset of the POIs may be identified from the MS captured images by matching the MS captured images of each POI in the subset with corresponding stored images. A cumulative grid point weight for a plurality of grid points in the visibility maps associated with the POIs in the subset may be computed. The cumulative grid point weight for each grid point represents the probability that the MS is located at that grid point. The location of the MS may be estimated based on the cumulative grid point weights of the plurality of grid points.

Abstract: Techniques for displaying navigation information on a mobile device are provided that include a method that includes obtaining an indication of a position and an indication of a direction associated with the mobile device, using the indication of the position, the indication of the direction, information regarding identities of POIs within a geographic region of interest, and information regarding areas associated with the POIs to determine at least one relevant POI, of the POIs, that is associated with the position and direction, and displaying at least one visual indication associated with each of the at least one relevant POI on the mobile device. The appearance of the at least one visual indication is dependent on at least one of a distance from the mobile device of the relevant POI associated with the visual indication or presence of a known physical barrier between the mobile device and that relevant POI.

Abstract: Methods, apparatus, and computer program products for determining a mobile device location. An example of a method for determining a mobile device location includes receiving signals from a transmitter, measuring signal characteristics of the received signals, and downloading data from a database corresponding to a defined region associated with the transmitters. The downloaded data includes a set of position points, a classification of each position point, and expected signal characteristics for each position point. The method further includes comparing the measured signal characteristics with the expected signal characteristics for each position point, assigning a weight to position points based on the compared signal characteristics, and determining the mobile device location by selecting one position point from the set as a position point solution corresponding to the mobile device location based on the assigned weight.

Abstract: Various methods, apparatuses and/or articles of manufacture are provided which may be implemented via one or more electronic devices to communicate navigation assistance data for at least one transmitting device that, while operatively provisioned for use in an indoor environment, may prove useful in estimating a position of a mobile device located in an adjacent outdoor environment.

Abstract: Disclosed are systems, apparatus, devices, methods, computer program products, and other implementations, including a method that includes determining at a mobile device whether verbal input from a user is required to determine position of location of the user. The method also includes, in response to a determination that the verbal input from the user is required to determine the position of the location of the user, obtaining at the mobile device verbal description data representative of one or more geographic features viewable by the user from the location of the user, identifying at the mobile device the one or more of the geographic features from the obtained verbal description data, and determining, at the mobile device, positioning information for the location of the user based, at least in part, on the one or more geographic features identified from the verbal description data.

Abstract: Disclosed are systems, apparatus, devices, methods, computer program products, and other implementations, including a method that includes capturing an image of a scene by an image capturing unit of a device that includes an accelerometer, and determining orientation of the device based, at least in part, on determined location of a vanishing point (e.g., a single vanishing point) in the captured image of the scene and at least one measurement obtained from the accelerometer.

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.

Abstract: A computer-implemented method for converting a raster image map to a vector image map includes receiving an electronic raster image that shows an indoor map of a building structure. The method also includes determining whether the indoor map is a line map. If not, the indoor map is converted into a line map. Next, the electronic raster image is processed to generate a processed raster image of the indoor map. The method then extracts vector lines from the processed raster image to generate an electronic vector image that includes the indoor map of the building structure.

Abstract: Systems, apparatus and methods for merging maps used by a positioning server are presented. Original maps are overlaid, concatenated or inset to create a more detailed map. The original maps are from different sources and/or in different formats. By merging or fusing maps together, a positioning server may create a better structural map, which is in turn used to create improved positioning assistance data.

Abstract: Disclosed are systems, apparatus, devices, method, computer program products, and other implementations, including a method that includes capturing an image of a scene by an image capturing unit of a device that includes at least one sensor, determining relative device orientation of the device based, at least in part, on determined location of at least one vanishing point in the captured image of the scene, and performing one or more calibration operations for the at least one sensor based, at least in part, on the determined relative device orientation.

Abstract: Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or support one or more operations or techniques for a relatively faster time-to-first-fix, such as for use in or with a mobile communication device. Briefly, in accordance with at least one implementation, a method may include transmitting a first message to a mobile device, the first message comprising abbreviated positioning assistance data; receiving a second message from the mobile device, the second message comprising an indication of a coarse location of the mobile device; and transmitting a third message to the mobile device, the third message comprising a detailed tiled radio heat map obtained based, at least in part, on the received indication of the coarse location of the mobile device.

Abstract: In one implementation, a method may comprise: obtaining a digital map of an indoor region that identifies boundaries between subsections within the indoor region; and approximating locations of walls separating rooms within at least one of the subsections based, at least in part, on locations of feature labels provided in the digital map.

Abstract: Various methods, apparatuses and/or articles of manufacture are provided which may be implemented to perform and/or otherwise support collaborative navigation between a plurality of mobile devices. In one example, a first mobile device, in response to a determination that at least a second mobile device is located within a threshold distance of the first mobile device, may obtain a navigation parameter indicative of an initial position and/or movement of the second mobile device which was determined based, at least in part, on a measurement from a sensor at the second mobile device. The first mobile device then affect a determined position and/or movement of the first mobile device based, at least in part, on the navigation parameter.