1. A method for estimating a position of a mobile device, the method comprising: detecting that the mobile device is in communication with one of a plurality of devices, each of the plurality of devices associated with a corresponding device identifier; triggering, by the mobile device, a capture of at least one image by an image sensor coupled to the mobile device, based, in part, on: a device identifier corresponding to the device communicating with the mobile device, and a field of view of the image sensor as determined based on input from a proximity sensor on the mobile device indicating that a section of the mobile device is within a threshold proximity of a user of the mobile device; and determining a location of the mobile device based, in part, on the at least one captured image.