US20030086525A1 - Searching system using x-ray and millimeter-wave signal - Google Patents

Searching system using x-ray and millimeter-wave signal Download PDF

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Publication number
US20030086525A1
US20030086525A1 US09/755,897 US75589701A US2003086525A1 US 20030086525 A1 US20030086525 A1 US 20030086525A1 US 75589701 A US75589701 A US 75589701A US 2003086525 A1 US2003086525 A1 US 2003086525A1
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millimeter wave
image
ray
signal
ray signal
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US09/755,897
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US6570956B1 (en
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Jin-Koo Rhee
Yeon-Sik Chae
Hyun-Chang Park
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    • G01V5/223—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/887—Radar or analogous systems specially adapted for specific applications for detection of concealed objects, e.g. contraband or weapons

Definitions

  • the present invention relates to a high efficient searching apparatus or processing technique using a combination of X ray signal and millimeter wave (EHF wave) signal, which allows a practical and effective method for searching human body to be conducted in air ports or harbors.
  • EHF wave millimeter wave
  • the conventional apparatus which was operated substantially as in FIG. 1, was hardly capable of a precise detection because the resolution of a searched object was much influenced by the environmental condition or other interference signal due to dependence on a signal of single band like X ray.
  • This conventional searching apparatus comprising a radio transceiver, which employs only X ray signal, produces unclear image signal and tends to malfunction, and therefore secondary individual confirmation by a security officer should follow after passengers have passed the searching stand, imparting displeasure to the passengers and causing delay as main problems.
  • the object of the invention is to provide a searching apparatus using a combination of X ray signal and millimeter wave (EHF wave) signal, which operates stably under various environmental conditions, can search and detect ultra small objects unmanned and can give clear and precise images of objects.
  • EHF wave millimeter wave
  • the present invention is characterized by including a technique for embodying an emitter module for producing radio signal, which module includes an electronic element for generating signal in the wave length range of millimeters, and for embodying a detector module for receiving signals; a technique for signal-processing in combination of the X ray in the conventional searching apparatus; and a technique for comparing the embodied image with other stored data and giving alarm as required.
  • FIG. 1 shows the arrangement for a conventional searching system using X ray signal
  • FIG. 2 shows the arrangement for a searching system using the combination of X ray and millimeter wave signal according to the present invention.
  • the present invention which relates to a high efficient searching apparatus has the following constructional features:
  • An X ray signal emitter 1 which has an electronic element 2 for producing X ray signal and includes an X ray signal detector 4 for receiving an X ray signal is provided.
  • a millimeter wave emitter 5 is also provided in a millimeter wave transceiver and includes an electronic element 6 for producing millimeter wave.
  • the transceiver described above also includes a millimeter wave detector 7 for receiving millimeter wave.
  • the apparatus according to the invention is also provided with an image processor 8 for deducing image of an object from the received X ray and millimeter wave signals and with a comparator 10 for comparing the deduced image with the corresponding data from the image data base for objects 9 already input.
  • a display 11 for displaying the image deduced from the image processor 8 and for giving an alarm as required is included in the apparatus as well.
  • the X ray signal output from the X ray signal emitter 1 which has an electronic element 2 for producing X ray signal and the millimeter wave signal output from the millimeter wave emitter 5 which composes a millimeter wave transceiver together with the detector 7 and includes the electronic element 6 for producing millimeter wave are respectively received by the X ray signal detector 4 and millimeter wave 7 .
  • the two signals received, i.e. X ray signal and millimeter wave signal, are transmitted to the image processing section 8 for producing image.
  • the image processed in the image processing section 8 is compared with the corresponding data from the image data base for objects 9 already stored to detect any abnormal object.
  • the image data having passed the above-described comparator 10 is transferred to the display 11 to display for the user and to produce an alarm signal if an abnormal object is detected.
  • the high efficient searching apparatus based on the example of the invention as described above employs the combination of X ray signal and millimeter ray signal, it has an improved resolving power so as to reveal any hidden product on human body effectively and has an operating characteristic stable to environmental disturbance so as to minimize the error rate for the transmission of radio signal, with the result that the reliability of the apparatus is remarkably improved.

Abstract

The present invention relates to a high efficient searching apparatus or processing technique using a combination of X ray signal and millimeter wave signal, which allows a practical and effective method for searching human body to be conducted in air ports or harbors.
The apparatus according to the invention comprises an X ray signal emitter 1 including an electronic element 2 producing X ray signal; an X ray signal detector 4 for receiving an X ray signal; a millimeter wave emitter 5 provided in a millimeter wave transceiver and including an electronic element 6 for producing millimeter wave; a millimeter wave detector 7 for receiving millimeter wave; an image processor 8 for deducing image of an object from the received X ray and millimeter wave signals; a comparator 10 for comparing the deduced image with the corresponding data from the image data base for objects 9 already input; and a display 11 for displaying the image deduced from the image processor 8 and for giving an alarm, as required.
The apparatus has such an improved resolving power as to reveal any hidden product on human body and has an operating characteristic stable to environmental disturbance so as to minimize the error rate for the transmission of radio signal, with the result that the reliability of the apparatus is remarkably improved.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a high efficient searching apparatus or processing technique using a combination of X ray signal and millimeter wave (EHF wave) signal, which allows a practical and effective method for searching human body to be conducted in air ports or harbors. [0001]
    • BACKGROUND OF THE INVENTION
  • The conventional searching apparatuses used to search weapons or the like hidden under clothes so on at air ports or harbors which regard the safety as the first priority depend on the method, wherein X ray, potentially very harmful to human body, is emitted, reflected and received for analytical evaluation. [0002]
  • The conventional apparatus, which was operated substantially as in FIG. 1, was hardly capable of a precise detection because the resolution of a searched object was much influenced by the environmental condition or other interference signal due to dependence on a signal of single band like X ray. This conventional searching apparatus comprising a radio transceiver, which employs only X ray signal, produces unclear image signal and tends to malfunction, and therefore secondary individual confirmation by a security officer should follow after passengers have passed the searching stand, imparting displeasure to the passengers and causing delay as main problems. [0003]
    • SUMMARY OF THE INVENTION
  • The object of the invention is to provide a searching apparatus using a combination of X ray signal and millimeter wave (EHF wave) signal, which operates stably under various environmental conditions, can search and detect ultra small objects unmanned and can give clear and precise images of objects. [0004]
  • To that end, the present invention is characterized by including a technique for embodying an emitter module for producing radio signal, which module includes an electronic element for generating signal in the wave length range of millimeters, and for embodying a detector module for receiving signals; a technique for signal-processing in combination of the X ray in the conventional searching apparatus; and a technique for comparing the embodied image with other stored data and giving alarm as required.[0005]
    • BRIEF DESCRIPTION OF THE INVENTION
  • FIG. 1 shows the arrangement for a conventional searching system using X ray signal, and [0006]
  • FIG. 2 shows the arrangement for a searching system using the combination of X ray and millimeter wave signal according to the present invention.[0007]
    • DETAILED DESCRIPTION OF THE INVENTION
  • A preferred embodiment of the invention will be described in detail by referring to the accompanying drawing. [0008]
  • As can be seen in FIG. 2, the present invention which relates to a high efficient searching apparatus has the following constructional features: An X [0009] ray signal emitter 1 which has an electronic element 2 for producing X ray signal and includes an X ray signal detector 4 for receiving an X ray signal is provided. A millimeter wave emitter 5 is also provided in a millimeter wave transceiver and includes an electronic element 6 for producing millimeter wave. The transceiver described above also includes a millimeter wave detector 7 for receiving millimeter wave. The apparatus according to the invention is also provided with an image processor 8 for deducing image of an object from the received X ray and millimeter wave signals and with a comparator 10 for comparing the deduced image with the corresponding data from the image data base for objects 9 already input. A display 11 for displaying the image deduced from the image processor 8 and for giving an alarm as required is included in the apparatus as well.
  • Now, an example of operating method is described in detail by referring to the accompanying drawings. [0010]
  • When a [0011] man 3 passes through a body searching stand at an airport or harbor, the X ray signal output from the X ray signal emitter 1 which has an electronic element 2 for producing X ray signal and the millimeter wave signal output from the millimeter wave emitter 5 which composes a millimeter wave transceiver together with the detector 7 and includes the electronic element 6 for producing millimeter wave are respectively received by the X ray signal detector 4 and millimeter wave 7. The two signals received, i.e. X ray signal and millimeter wave signal, are transmitted to the image processing section 8 for producing image.
  • The image processed in the [0012] image processing section 8 is compared with the corresponding data from the image data base for objects 9 already stored to detect any abnormal object. The image data having passed the above-described comparator 10 is transferred to the display 11 to display for the user and to produce an alarm signal if an abnormal object is detected.
  • Thus, because the high efficient searching apparatus based on the example of the invention as described above employs the combination of X ray signal and millimeter ray signal, it has an improved resolving power so as to reveal any hidden product on human body effectively and has an operating characteristic stable to environmental disturbance so as to minimize the error rate for the transmission of radio signal, with the result that the reliability of the apparatus is remarkably improved. [0013]
  • It is to be understood that, while the invention was described mainly with respect to a preferable specific embodiment, the invention is not restricted to that embodiment and a variety of modifications and alterations would be possible to a man skilled in the art by referring to the description or drawings presented here and within the spirit of the invention and thus those modifications or alterations are to fall within the scope of the invention, which scope should be limited only by the attached claims. [0014]

Claims (1)

What is claimed is:
1. A searching apparatus using a combination of X ray and millimeter wave signal, which comprises an X ray signal emitter including an electronic element producing X ray signal; an X ray signal detector for receiving an X ray signal; a millimeter wave emitter provided in a millimeter wave transceiver and including an electronic element for producing millimeter wave; a millimeter wave detector for receiving millimeter wave; an image processor for deducing image of an object from the received X ray and millimeter wave signals; a comparator for comparing the deduced image with the corresponding data from the image data base for objects already input; and a display for displaying the image deduced from the image processor and for giving an alarm, as required.
US09/755,897 2000-11-27 2001-01-04 Searching system using X-ray and millimeter-wave signal Expired - Lifetime US6570956B1 (en)

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Cited By (10)

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US20040090359A1 (en) * 2001-03-16 2004-05-13 Mcmakin Douglas L. Detecting concealed objects at a checkpoint
US20040140924A1 (en) * 2001-03-16 2004-07-22 Keller Paul E. Detection of a concealed object
WO2004112377A2 (en) 2003-06-17 2004-12-23 Roland Unger Device for the detection of objects
US20040263379A1 (en) * 2003-06-26 2004-12-30 Keller Paul E. Concealed object detection
US20050232487A1 (en) * 2004-04-14 2005-10-20 Safeview, Inc. Active subject privacy imaging
US20060066469A1 (en) * 2004-09-24 2006-03-30 Foote Harlan P Three-dimensional surface/contour processing based on electromagnetic radiation interrogation
US20060104480A1 (en) * 2004-11-12 2006-05-18 Safeview, Inc. Active subject imaging with body identification
US20070263907A1 (en) * 2006-05-15 2007-11-15 Battelle Memorial Institute Imaging systems and methods for obtaining and using biometric information
EP3115811A1 (en) * 2015-07-10 2017-01-11 CTG Carbon Team Germany GmbH Device for detecting weapons in a piece of luggage
GB2541680A (en) * 2015-08-25 2017-03-01 Smiths Heimann Gmbh Method and apparatus

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US6922460B2 (en) * 2003-06-11 2005-07-26 Quantum Magnetics, Inc. Explosives detection system using computed tomography (CT) and quadrupole resonance (QR) sensors
US7991242B2 (en) 2005-05-11 2011-08-02 Optosecurity Inc. Apparatus, method and system for screening receptacles and persons, having image distortion correction functionality
US20090174554A1 (en) 2005-05-11 2009-07-09 Eric Bergeron Method and system for screening luggage items, cargo containers or persons
US8097855B2 (en) * 2005-11-30 2012-01-17 Iscon Video Imaging, Inc. Methods and systems for detecting concealed objects
US7899232B2 (en) 2006-05-11 2011-03-01 Optosecurity Inc. Method and apparatus for providing threat image projection (TIP) in a luggage screening system, and luggage screening system implementing same
US8494210B2 (en) 2007-03-30 2013-07-23 Optosecurity Inc. User interface for use in security screening providing image enhancement capabilities and apparatus for implementing same
KR100948104B1 (en) * 2006-12-26 2010-03-16 윤대영 Explosives and combustibles prober
KR100832466B1 (en) 2007-01-05 2008-05-26 동국대학교 산학협력단 Passive millimeter wave system and method for detecting concealed objects
US20110102233A1 (en) * 2008-09-15 2011-05-05 Trex Enterprises Corp. Active millimeter-wave imaging system
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EP3420563A4 (en) 2016-02-22 2020-03-11 Rapiscan Systems, Inc. Systems and methods for detecting threats and contraband in cargo
CN106371148B (en) * 2016-09-27 2019-05-03 华讯方舟科技有限公司 A kind of human body foreign body detection method and system based on millimeter-wave image

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US7405692B2 (en) 2001-03-16 2008-07-29 Battelle Memorial Institute Detecting concealed objects at a checkpoint
US20040140924A1 (en) * 2001-03-16 2004-07-22 Keller Paul E. Detection of a concealed object
US20040090359A1 (en) * 2001-03-16 2004-05-13 Mcmakin Douglas L. Detecting concealed objects at a checkpoint
US7834802B2 (en) 2001-03-16 2010-11-16 Battelle Memorial Institute Detection of a concealed object
US7365672B2 (en) 2001-03-16 2008-04-29 Battelle Memorial Institute Detection of a concealed object
US20090140907A1 (en) * 2001-03-16 2009-06-04 Battelle Memorial Institute Detection of a concealed object
WO2004112377A2 (en) 2003-06-17 2004-12-23 Roland Unger Device for the detection of objects
EP1636984B1 (en) * 2003-06-17 2012-03-28 Roland Unger Device for the detection of objects having transport means for the objects and an image detector
US20040263379A1 (en) * 2003-06-26 2004-12-30 Keller Paul E. Concealed object detection
US6876322B2 (en) 2003-06-26 2005-04-05 Battelle Memorial Institute Concealed object detection
US20050232487A1 (en) * 2004-04-14 2005-10-20 Safeview, Inc. Active subject privacy imaging
US8345918B2 (en) * 2004-04-14 2013-01-01 L-3 Communications Corporation Active subject privacy imaging
US20060066469A1 (en) * 2004-09-24 2006-03-30 Foote Harlan P Three-dimensional surface/contour processing based on electromagnetic radiation interrogation
US7253766B2 (en) 2004-09-24 2007-08-07 Battelle Memorial Institute Three-dimensional surface/contour processing based on electromagnetic radiation interrogation
US7386150B2 (en) * 2004-11-12 2008-06-10 Safeview, Inc. Active subject imaging with body identification
US20060104480A1 (en) * 2004-11-12 2006-05-18 Safeview, Inc. Active subject imaging with body identification
US20070263907A1 (en) * 2006-05-15 2007-11-15 Battelle Memorial Institute Imaging systems and methods for obtaining and using biometric information
US7844081B2 (en) 2006-05-15 2010-11-30 Battelle Memorial Institute Imaging systems and methods for obtaining and using biometric information
EP3115811A1 (en) * 2015-07-10 2017-01-11 CTG Carbon Team Germany GmbH Device for detecting weapons in a piece of luggage
GB2541680A (en) * 2015-08-25 2017-03-01 Smiths Heimann Gmbh Method and apparatus
WO2017032849A1 (en) * 2015-08-25 2017-03-02 Smiths Heimann Gmbh Method and apparatus for scanning a clothed human subject
CN108291980A (en) * 2015-08-25 2018-07-17 德国史密斯海曼有限责任公司 Method and apparatus
US20180246248A1 (en) * 2015-08-25 2018-08-30 Smiths Heimann Gmbh Method and apparatus for scanning a clothed human subject
GB2541680B (en) * 2015-08-25 2019-01-09 Smiths Heimann Gmbh Scanning a clothed human subject with soft tissue scanning and tissue penetrating radiation
US10795046B2 (en) * 2015-08-25 2020-10-06 Smiths Heimann Gmbh Method and apparatus for scanning a clothed human subject

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KR100406113B1 (en) 2003-11-15
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