Patent ID: 7633518

Claim:
An object detection portal system comprising: an object detection portal configured to detect, real-time, the presence of a threat object in a scan volume; a video camera to produce a real-time image of the scan volume and provide an output to a display of a scan subject; a background signal filter to remove detected background signals caused by objects outside the scan volume; a threat object position calculator to produce real-time signals indicative of a real-time position of the threat object, the real-time position of the threat object including at least a horizontal position of the threat object with respect to the object detection portal; a shape generator to produce a real-time overlay indicative of the real-time position of the threat object in response to sensing of the threat object, wherein the real-time image and the overlay are indicative of a state in the scan volume at substantially one time; and a display driver to produce a signal that allows a real-time visual superimposition of the real-time position of the threat object overlay on the real-time image of the scan volume, wherein the real-time overlay indicative of the real-time position of the threat object is overlaid on the real-time image produced by the video camera using the real-time signals from the threat object position calculator to position the overlay on the real-time image.