Object detection portal with video display overlay
First Claim
Patent Images
1. 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.
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Abstract
An object detection portal wherein a video image is obtained of a volume or area being scanned, and location of a threat object is determined and displayed in real time as an indicator overlay on the video image. An individual subject being scanned may be continuously monitored by an operator during an object divesting process, and an operator may view the threat object moving from or remaining with the subject. Object location information is supplied to a video driver to superimpose the overlay on a real time image of a subject. The scanning portal may interact with an exit barrier. The exit barrier may be activated automatically in response to sensing of a threat.
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Citations
20 Claims
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1. An object detection portal system comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 15, 16, 17)
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7. A method for displaying real-time information derived from a scan volume, said method comprising:
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receive, from a video camera, real-time image of the scan volume; removing from the real-time image, detected background signals caused by objects outside the scan volume; detecting a threat object and determining a position of the threat object in real-time in the scan volume, the real-time position of the threat object including at least a horizontal position of the threat object with respect to a detection portal, the real-time image and the real-time position of the threat object being indicative of a state in the scan volume at substantially one time; and producing an overlay indicative of the real-time position of the threat object, wherein said producing the overlay comprises overlaying the overlay on the real-time image produced by the video camera. - View Dependent Claims (8, 9, 10, 18, 19)
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11. An object detection portal system including sensors providing a set of inputs and a video camera for producing a real-time image of a scan volume and an indication of a threat object detected by said sensors, said object detection portal system comprising:
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a sensor array configured to perform a scan with said sensors to provide successive sets of inputs from said sensors, the inputs generated at least a video refresh rate; a background signal filter to remove detected background signals caused by objects outside the scan volume; a threat object position calculator configured to use said successive sets of inputs to produce successive signals indicative of a real-time position of the threat object, each signal being produced in response to one set of inputs, the real-time position of the threat object including at least a horizontal position of the threat object with respect to said sensor array; and an electronics unit comprising a video processor that receives an output of said threat object position calculator and generates an overlay superimposed on the real-time image, wherein the overlay is superimposed on the real-time image produced by said video camera using the successive signals indicative of the real-time position of the threat object. - View Dependent Claims (12, 13, 14, 20)
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Specification