mobile device position uncertainty based on a potential impediment measurement of an estimated trajectory

摘要

The present invention relates to various techniques for identifying an uncertainty in the position of a mobile device (350-1, 350-2), such as, based at least in part on a potential impediment measurement (302) of a estimated trajectory (352). for example, an exemplary method may comprise estimating a mobile device trajectory (352) within a particular environment (300-4), determining a potential impediment measurement for at least a portion of the trajectory based at least in part , on an electronic map that is indicative of the presence or absence of one or more obstacles and presenting an indication of an uncertainty in position (354) to a mobile device user. position uncertainty may be based, at least in part, on the potential impediment measure (302).