Method and apparatus for detecting concealed weapons
First Claim
1. Apparatus for classifying a ferromagnetic object within a sensing area, comprising:
- a magnetic field sensor, said magnetic field sensor producing magnetic field data;
a signal processing system operatively associated with said magnetic field sensor, said signal processing system comprising;
a neural network responsive to said magnetic field data produced by said magnetic field sensor, said neural network comparing said magnetic field data with magnetic field data produced by known ferromagnetic objects to make a probabilistic determination as to the classification of the ferromagnetic object within the sensing area; and
a user interface operatively associated with said signal processing system, said user interface producing a user-discernable output indicative of the probabilistic determination of the classification of the ferromagnetic object within a sensing area.
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Accused Products
Abstract
Apparatus for classifying a ferromagnetic object within a sensing area may comprise a magnetic field sensor that produces magnetic field data. A signal processing system operatively associated with the magnetic field sensor comprises a neural network. The neural network compares the magnetic field data with magnetic field data produced by known ferromagnetic objects to make a probabilistic determination as to the classification of the ferromagnetic object within the sensing area. A user interface operatively associated with the signal processing system produces a user-discernable output indicative of the probabilistic determination of the classification of the ferromagnetic object within a sensing area.
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Citations
22 Claims
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1. Apparatus for classifying a ferromagnetic object within a sensing area, comprising:
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a magnetic field sensor, said magnetic field sensor producing magnetic field data;
a signal processing system operatively associated with said magnetic field sensor, said signal processing system comprising;
a neural network responsive to said magnetic field data produced by said magnetic field sensor, said neural network comparing said magnetic field data with magnetic field data produced by known ferromagnetic objects to make a probabilistic determination as to the classification of the ferromagnetic object within the sensing area; and
a user interface operatively associated with said signal processing system, said user interface producing a user-discernable output indicative of the probabilistic determination of the classification of the ferromagnetic object within a sensing area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for classifying a ferromagnetic object within a sensing area, comprising:
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sensing, during a sample time, a magnetic field in the sensing area;
producing magnetic field data representative of the sensed magnetic field during the sample time;
using a neural network to compare said magnetic field data with magnetic field data produced by known ferromagnetic objects to make a probabilistic determination as to the classification of the ferromagnetic object within a sensing area; and
producing a user-discernable output indicative of the probabilistic determination of the classification of the ferromagnetic object within the sensing area. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. Apparatus for classifying a ferromagnetic object within a sensing area, comprising:
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magnetic field sensing means for sensing a magnetic field and for producing magnetic field data;
signal processing means operatively associated with said magnetic field sensing means, said signal processing means comprising;
neural network means for comparing said magnetic field data with magnetic field data of known ferromagnetic objects to make a probabilistic determination as to the classification of the ferromagnetic object within the sensing area; and
user interface means operatively associated with said signal processing means for producing a user-discernable output indicative of the probabilistic determination of the classification of the ferromagnetic object within a sensing area.
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Specification