1. A system comprising: one or more cameras, wherein a camera of the one or more cameras is configured to capture a video image of a field of regard, wherein each point within an area of interest is covered by the field of regard; a plurality of calibration points within the area of interest; a memory; and a processor configured to: calibrate the system by at least associating coordinates of each calibration point of the plurality of calibration points with a calibration pixel corresponding to an image of the respective calibration point in the video image captured by the camera, wherein the processor is configured to generate coordinates of an object of interest in the area of interest by at least comparing a position of an image of the object of interest in the video image to the calibration pixels in the video image, store a location history of the object of interest in the memory, the location history being based on the coordinates of the object of interest over time, compare the location history of the object of interest to one or more template profiles of permitted objects within the area of interest, and determine whether the object of interest corresponds to one or more of the permitted objects based on the comparison.