Patent ID: 8213685

Claim:
A system for monitoring compliance of moving vehicles on a roadway subject to a speed limit, the system comprising: a tracking camera constructed and arranged to provide a plurality of images of a measurement area on the roadway, wherein each of the images is associated with timing information indicating when the image was captured; and a processing unit, coupled to the tracking camera, configured to: receive the images from the tracking camera; detect in the images a vehicle moving through the measurement area; determine a real-world position of the vehicle relative to the roadway for each of at least two of the images; access the timing information associated with said at least two of the images; calculate a speed of the vehicle based on the real-world positions and accessed timing information, wherein the real-world positions and accessed timing information are sufficiently accurate for the calculated speed to be used to determine whether the vehicle should be issued a citation for exceeding the speed limit; provide a GUI to a user of the system, wherein the GUI is configured to present to the user live video of the measurement area from the tracking camera; and to continuously update the speed of the vehicle and to display the speed of the vehicle at the position of the vehicle in the video.