Methods and systems for non-cooperative automatic security screening in crowded areas
First Claim
1. A method for detecting one or more threats on one or more targets passing through a security area, comprising:
- calculating a dielectric permittivity value of one or more objects on said one or more targets via one or more microwave signals, said dielectric permittivity value corresponding to a variation in a microwave reflected or transmitted through said one or more objects,determining a magnetic strength effect value of said one or more objects on said one or more targets via one or more magnetometers,entering said calculated dielectric permittivity value and said magnetic strength effect value into at least one machine learning algorithm, andcreating an alarm after one screening stage if said one or more algorithms indicate a threshold value, said threshold value indicating a threat.
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Accused Products
Abstract
The present invention is a multi-threat detection method and system for high-traffic areas, such as airports, other mass-transit hubs, malls, symposiums, and the like. The detection methodology comprises a set of detection blocks, each performing different functions, and taking the information resulting from each block and entering it into one or more detection algorithms. The blocks comprise microwave detectors, co-polarization versus cross-polarization processors, magnetometers, and cameras (optional). The values calculated by the blocks are entered into machine learning algorithms which detect a threat if a threshold value is met. The detection occurs at a distance and the alarm may be silent, such that authorities are able to address threats without the target being aware. The alarm is also able to differentiate among varying threats based on the values calculated. No shadowing problems exist, and thus several targets may be monitored simultaneously without slowing down the speed of processing.
10 Citations
21 Claims
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1. A method for detecting one or more threats on one or more targets passing through a security area, comprising:
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calculating a dielectric permittivity value of one or more objects on said one or more targets via one or more microwave signals, said dielectric permittivity value corresponding to a variation in a microwave reflected or transmitted through said one or more objects, determining a magnetic strength effect value of said one or more objects on said one or more targets via one or more magnetometers, entering said calculated dielectric permittivity value and said magnetic strength effect value into at least one machine learning algorithm, and creating an alarm after one screening stage if said one or more algorithms indicate a threshold value, said threshold value indicating a threat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for detecting one or more threats on one or more targets passing through a security area, comprising:
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calculating a dielectric permittivity value of one or more objects on said one or more targets via one or more microwave signals, said dielectric permittivity value being collected at a speed of at least 15 frames per second, determining a magnetic strength effect value of said one or more objects on said one or more targets via one or more magnetometers, entering said calculated dielectric permittivity value and said magnetic strength effect value into at least one machine learning algorithm, and creating an alarm if said one or more algorithms indicate a threshold value, said threshold value indicating a threat.
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Specification