Method and system for map generation for location and navigation with user sharing/social networking

摘要

Methods and systems for map generation for location and navigation with user sharing/social networking may comprise determining a position of a wireless communication device (WCD) and capturing images of the surroundings of the WCD. Data associated with objects in the surroundings of said WCD may be extracted from the captured images, positions of the objects may be determined, and the determined positions and the data may then be uploaded to a database. The elements may comprise structural and/or textual features in the surroundings of the WCD. The position of the WCD may be determined utilizing sensors in the WCD to measure a distance from a last determined or known position. The sensors may comprise a pedometer, an altimeter, a camera, and/or a compass. The positions of the extracted elements may be determined utilizing known optical characteristics of a camera in the WCD.

主权项

1. A method for wireless communication, the method comprising:
in connection with a premises-based crowd-sourced database that receives images and location data from a plurality of users of wireless communication devices, and for each of said plurality of users:
receiving a determined position of a wireless communication device in an environment where global navigation satellite system (GNSS) signals are unavailable or attenuated below a level needed for positioning, wherein the position is determined by:
capturing one or more images of the surroundings of said wireless communication device when said wireless communication device is in said environment;extracting from the captured one or more images, data associated with objects in the surroundings of said wireless communication device; anddetermining positions of said objects in the surroundings of said wireless communication device, said objects also being in said environment; andupdating said premises-based crowd-sourced database based on said determined position of said wireless device, said positions of said objects in the surroundings of said wireless device, and said extracted data.