1. A method of tracking a subject associated with a mobile device, comprising: processing an image data set and a mobile device location data set to determine a match, wherein the image data set comprises image, time and location information, and the mobile device location data set comprises mobile device identification, time and location information, and wherein a match is indicated when the time and location information from the image and mobile device data sets meet a prescribed degree of correlation; and in response to determining a match between the image and mobile device data sets, associating a specific mobile device with a specific image.