8 results about "Location based applications" patented technology

A location-based application, such as a parallel reality game, may receive, from a client device of a user of the application, location data representing the user's position in the real-world. In one embodiment, a game platform associated with the application writes location data derived from the received location data to each of a plurality of retention tables, each storing the location data at a different level of granularity and for a different retention period. Upon expiration of a retention period for a first retention table, the game platform anonymizes the location data and transfers the anonymized data to a second retention table storing the data at a lower level of granularity. The game platform repeats this process until expiration of the retention period for the table having the lowest level of granularity before deleting the location data from storage.

Techniques for configuring a network system that includes a cellular network and a Wi-Fi network to support location-based resource allocation are discussed herein. To cover regions with weak cellular signal and / or with densely packed devices (e.g., a stadium during a football game), a network may use both cellular and Wi-Fi networks to provide coverage. In some examples, the system may configure a base station and a user device to enable automatic authentication of the user device to access a new Wi-Fi network. In response to a service request from the user device, the system may determine whether the Wi-Fi network can handle the service or switch a serving connection. The system may also determine whether the Wi-Fi network includes location-based applications that should be rendered at the user device.

The present disclosure describes approaches to camera re-localization that improve the speed and accuracy with which pose estimates are generated by fusing output of a computer vision algorithm with data from a prior model of a geographic area in which a user is located. For each candidate pose estimate output by the algorithm, a game server maps the estimate to a position on the prior model (e.g., a specific cell on a heatmap-style histogram) and retrieves a probability corresponding to the mapped position. A data fusion module fuses, for each candidate pose estimate, a confidence score generated by the computer vision algorithm with the location probability from the prior model to generate an updated confidence score. If an updated confidence score meets or exceeds a score threshold, a re-localization module initiates a location-based application (e.g., a parallel reality game) based on the associated candidate pose estimate.

The present disclosure describes approaches to camera re-localization that improve the accuracy of re-localization determinations by performing simulated consistency checks for three-dimensional maps. Client devices associated with users of a location-based application transmit image scans to a game server, which divides the received scan data into mapping sets used to generate 3D maps of environments and validation sets used to test the accuracy of the maps. To perform the testing, the game server identifies query scans in the validation set having GPS coordinates within a threshold distance of the mapped location and uses the 3D map of the environment to generate a pose estimate for each frame. The results of the localization queries are analyzed by comparing differences between the localization pose estimates and differences between the poses of independent pairs of frames in the query scan to evaluate the accuracy of the 3D map.

Systems and methods are provided for enhancing availability of a user equipment (UE) location for location-based routing of a wireless emergency call. When an emergency call is initiated by UE, a distance of a current location of the UE to a cached location of the UE is determined. Based on the distance, a location of the UE is communicated to a gateway. The location, in various aspects either the cached location as determined by a location-based application executing on the UE or the current location communicated by the UE in a SIPINV message, enables the UE to initiate communication with the appropriate PSAP.

Techniques for deploying location based applications in a network are discussed herein. Such location based applications can be installed or implemented in a network node close to the base station and / or the location of the user equipment (UE) using the location based application in an environment. When a user is within a geofence area associated with the location based applications, the UE can present an indication that location based services are available instead of requiring a user to select an application on their own or thorough an application store. After the exchanging authentication information, the UE can use authentication information to send a request, along with location data or pose data of the UE, to an edge server to render content for presentation on the UE. The edge server can transmit the content to the UE for presenting content at the location in accordance with the location based application.

A location-based application, such as a parallel reality game, may receive, from a client device of a user of the application, location data representing the user's position in the real-world. In one embodiment, a game platform associated with the application writes location data derived from the received location data to each of a plurality of retention tables, each storing the location data at a different level of granularity and for a different retention period. Upon expiration of a retention period for a first retention table, the game platform anonymizes the location data and transfers the anonymized data to a second retention table storing the data at a lower level of granularity. The game platform repeats this process until expiration of the retention period for the table having the lowest level of granularity before deleting the location data from storage.

The present disclosure describes approaches to camera re-localization that improve the accuracy of re-localization determinations by performing simulated consistency checks for three-dimensional maps. Client devices associated with users of a location-based application transmit image scans to a game server, which divides the received scan data into mapping sets used to generate 3D maps of environments and validation sets used to test the accuracy of the maps. To perform the testing, the game server identifies query scans in the validation set having GPS coordinates within a threshold distance of the mapped location and uses the 3D map of the environment to generate a pose estimate for each frame. The results of the localization queries are analyzed by comparing differences between the localization pose estimates and differences between the poses of independent pairs of frames in the query scan to evaluate the accuracy of the 3D map.