Personnel Inspection With Threat Detection And Discrimination
First Claim
1. A method comprising:
- receiving, from a plurality of magnetic field receivers including magnetic sensors, data characterizing samples obtained by the plurality of magnetic field receivers, the samples of a combination of a first magnetic field and a second magnetic field resulting from interaction of the first magnetic field and an object;
determining, using the received data, a polarizability index of the object, the polarizability index characterizing a magnetic polarizability property of the object;
classifying, using the determined polarizability index, the object as threat or non-threat; and
providing the classification.
2 Assignments
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Accused Products
Abstract
A method includes receiving, from a plurality of magnetic field receivers including magnetic sensors, data characterizing samples obtained by the plurality of magnetic field receivers, the samples of a combination of a first magnetic field and a second magnetic field resulting from interaction of the first magnetic field and an object; determining, using the received data, a polarizability index of the object, the polarizability index characterizing a magnetic polarizability property of the object; classifying, using the determined polarizability index, the object as threat or non-threat; and providing the classification. Related apparatus, systems, techniques, and articles are also described.
6 Citations
32 Claims
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1. A method comprising:
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receiving, from a plurality of magnetic field receivers including magnetic sensors, data characterizing samples obtained by the plurality of magnetic field receivers, the samples of a combination of a first magnetic field and a second magnetic field resulting from interaction of the first magnetic field and an object; determining, using the received data, a polarizability index of the object, the polarizability index characterizing a magnetic polarizability property of the object; classifying, using the determined polarizability index, the object as threat or non-threat; and providing the classification. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a magnetic field transmitter configured to generate a first magnetic field; a plurality of magnetic field receivers including magnetic sensors, the plurality of magnetic field receivers configured to sample a combination of the first magnetic field and a second magnetic field resulting from interaction of the first magnetic field and an object; and at least one data processor configured to at least; receive data characterizing the samples obtained by the plurality of magnetic field receivers; determine, using the received data, a polarizability index of the object, the polarizability index characterizing a magnetic polarizability property of the object; classify, using the polarizability index, the object as threat or non-threat; and provide the classification. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification