1. A method of automatically tracking a target, the method comprising: using an object tracking process to track a first object corresponding to a first target during a first period of time; capturing a first face image of the first object at a first time during the first period of time; storing the first face image of the first object at a computer system, and associating the first face image with the first target; capturing a second face image at a second time during the first period of time, the second face image corresponding in space with the tracked first object; comparing the second face image to the first face image to determine whether the second face image and the first face image correspond to the same target; and when the second face image and first face image are determined to correspond to the same target, confirming that the first target still corresponds to the first object.