US Patent 9489839 Tracking a vehicle using an unmanned aerial vehicle

Tracking a vehicle using an unmanned aerial vehicle is disclosed. One or more first images may be received from a first camera of the first unmanned aerial vehicle located at a first location. A unique identifier of a first vehicle may be determined to be not identifiable in at least one of the one or more first images. The first unmanned aerial vehicle may be then repositioned. One or more second images having the second field of view and showing the first vehicle may then be received. The unique identifier of the first vehicle may then be determined based on at least one of the one or more second images.