Mmw contraband screening system
First Claim
1. A contraband detection system, comprising:
- a) a first camera having a first field of view, the first camera having an output providing first image data representative of radiation in a first frequency band from items in the first field of view, wherein the first frequency band comprises visible light frequencies;
b) a second camera having a second field of view at least partially overlapping the first field of view, the second camera having an output providing second image data representative of radiation in a second frequency band, the second frequency band being different from the first frequency band and comprising frequencies between 20 GHz and 300 GHz, the radiation in the second frequency band being representative of items in the second field of view; and
c) a display station coupled to the first camera and the second camera to receive the first image data and the second image data, the display station comprising at least one computer programmed to present a display of items in the first field of view using the first image data selectively overlaid with an indication of at least one item derived from the second image data.
1 Assignment
0 Petitions
Accused Products
Abstract
An inspection system that can detect contraband items concealed on, in or beneath an individual'"'"'s clothing. The system employs millimeter wave radiation to detect contraband items. The system is described in connection with a check point security system that includes temperature controlled walls to enhance imaging of contraband items. Also, a millimeter wave camera is used in conjunction with a visible light camera that forms images. To address privacy concerns of displaying images of people made with millimeter wave cameras that effectively “see through” clothes, the millimeter wave images are not displayed directly. Rather, computer processing produces indications of suspicious items from the underlying raw millimeter wave images. The indications of suspicious items are overlaid on the image formed by the visible light camera.
80 Citations
37 Claims
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1. A contraband detection system, comprising:
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a) a first camera having a first field of view, the first camera having an output providing first image data representative of radiation in a first frequency band from items in the first field of view, wherein the first frequency band comprises visible light frequencies; b) a second camera having a second field of view at least partially overlapping the first field of view, the second camera having an output providing second image data representative of radiation in a second frequency band, the second frequency band being different from the first frequency band and comprising frequencies between 20 GHz and 300 GHz, the radiation in the second frequency band being representative of items in the second field of view; and c) a display station coupled to the first camera and the second camera to receive the first image data and the second image data, the display station comprising at least one computer programmed to present a display of items in the first field of view using the first image data selectively overlaid with an indication of at least one item derived from the second image data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A contraband detection system, comprising:
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a) a first camera having a first field of view, the first camera having an output providing first image data representative of radiation in a first frequency band from items in the first field of view; b) a second camera having a second field of view at least partially overlapping the first field of view, the second camera having an output providing second image data representative of radiation in a second frequency band, different from the first frequency band, representative of items in the second field of view; c) a display station coupled to the first camera and the second camera to receive the first image data and the second image data, the display station comprising at least one computer programmed to present a display of items in the first field of view using the first image data selectively overlaid with an indication of at least one item derived from the second image data; and d) a transmitter transmitting millimeter wave radiation directed at the field of view of the second camera. - View Dependent Claims (12, 13)
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14. A contraband detection system, comprising:
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a) a first camera having a first field of view, the first camera having an output providing first image data representative of radiation in a first frequency band from items in the first field of view; b) a second camera having a second field of view at least partially overlapping the first field of view, the second camera having an output providing second image data representative of radiation in a second frequency band, different from the first frequency band, representative of items in the second field of view; and c) a display station coupled to the first camera and the second camera to receive the first image data and the second image data, the display station comprising at least one computer programmed to present a display of items in the first field of view using the first image data selectively overlaid with an indication of at least one item derived from the second image data, wherein the first image data comprises a representation of objects in the first field of view with a first resolution and the second image data comprises a representation of objects in the second field of view with a second resolution and the first resolution is at least ten times greater than the second resolution. - View Dependent Claims (15)
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16. A contraband detection system adapted to detect contraband objects concealed in an item under inspection within an inspection area, the system comprising:
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a) a structure bordering the inspection area, the structure comprising; i) an exterior surface; ii) a heat generating member within the structure; and iii) a layer between the exterior surface and the heat generating member transparent to millimeter wave radiation; and b) a millimeter wave camera having a field of view, the millimeter wave camera being positioned such that a portion of the exterior surface adjacent the heat generating member is within the field of view. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A contraband detection system comprising:
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a) a first heated structure containing a first member emitting heat energy embedded therein; b) a millimeter wave camera facing the heated structure; and c) a second heated structure having a second member emitting heat energy embedded therein, the second heated structure being positioned such that the millimeter wave camera is disposed between the first heated structure and the second heated structure. - View Dependent Claims (25, 26, 27, 28, 29)
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30. An airport security checkpoint comprising:
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a) an enclosure having a millimeter wave camera imaging a field of view within the enclosure, the enclosure having a passage sized to allow a person to enter the field of view, the camera having a camera data output; b) a baggage scanner having a scanner data output; c) at least one computer having inputs coupled to the camera data output and the scanner data output, the at least one computer programmed to present, based on the camera data output and the scanner data output, an image for a passenger. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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Specification