DETECTION OF A CONCEALED OBJECT
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed are systems, methods, devices, and apparatus to determine if a clothed individual is carrying a suspicious, concealed object. This determination includes establishing data corresponding to an image of the individual through interrogation with electromagnetic radiation in the 200 MHz to 1 THz range. In one form, image data corresponding to intensity of reflected radiation and differential depth of the reflecting surface is received and processed to detect the suspicious, concealed object.
107 Citations
50 Claims
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1-30. -30. (canceled)
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31. A method, comprising:
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detecting electromagnetic radiation returned from a concealed surface associated with a person; generating image data from the detected electromagnetic radiation; segmenting the image data into image portions; performing a Fourier transform on each of the image portions; identifying the presence of a man-made object in one or more of the image portions based on spatial frequencies in the Fourier-transformed image portions; and communicating the presence of the man-made object. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38)
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39. A system, comprising:
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an array operable to interrogate a person with electromagnetic radiation at one or more frequencies in a frequency range; and a processing subsystem coupled to the array, the processing subsystem being operable to transform image data produced from returned electromagnetic radiation into one or more spatial frequency representations, to apply one or more extraction filters to the spatial frequency representations, and to adaptively process extracted features output from the one or more extraction filters so as to determine whether one or more objects being concealed by the person are man-made objects. - View Dependent Claims (40, 41, 42, 43, 44)
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45. A method, comprising:
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detecting electromagnetic radiation returned from a concealed surface associated with a person; generating image data from the detected electromagnetic radiation; segmenting the image data into image portions; transforming the image portions in spatial frequency representations; extracting features from the spatial frequency representations based on spatial frequencies of the features; and identifying the presence of a man-made object in one or more of the image portions based on the extracted features. - View Dependent Claims (46, 47, 48, 49, 50)
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Specification