Surveilled subject imaging with object identification
First Claim
1. A method of surveilling a subject, the subject including a person and any discernible objects with the person, the method comprising:
- transmitting toward the subject in a subject position, electromagnetic radiation in a frequency range of about 100 MHz to about 2 THz, from positions spaced from the subject position;
receiving from the subject electromagnetic radiation emitted from the subject in response to the transmitted electromagnetic radiation;
producing an image signal representative of the received radiation;
producing from the image signal, image data corresponding to a first image of at least a portion of the subject having picture elements with different levels of intensity;
determining whether the image data corresponding to the first image includes characteristics corresponding to an obiect on the person, including determining a correlation of the levels of intensity of at least one group of picture elements with the levels of intensity of a corresponding reference group of picture elements, including identifying at least a portion of the image data corresponding to which there is at least a threshold correlation of the levels of intensity of the picture elements in the at least one group of picture elements with the levels of intensity of the picture elements in the reference group of picture elements, including determining a correlation value of a given picture element that is derived from the intensity levels of a group of associated picture elements arranged relative to the given picture element, including modifying the original intensity level each picture element of the group of associated picture elements, by an amount related to the position of the picture element in the group relative to the given element, and combining the modified intensity levels; and
when the image data corresponding to the first image is determined to include characteristics corresponding to an obiect, determining the location in the first image corresponding to image data including characteristics corresponding to an obiect.
3 Assignments
0 Petitions
Accused Products
Abstract
An imaging system can include an antenna apparatus configured to transmit toward and receive from a subject in a subject position, millimeter-wave electromagnetic radiation. A subject may include a person and any object or objects with the person. A controller can include a transceiver configured to operate the antenna apparatus and produce an output representative of the received radiation, and a processor adapted to produce from the transceiver output, image data representative of an image of the subject. At least a first portion of an image signal representative of radiation received by an antenna apparatus may be used to produce first image data representative of a first image of at least a portion of the subject. Second image data representative of a second image having resolution that is different than that of the first image may be produced from at least a second portion of the image signal.
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Citations
33 Claims
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1. A method of surveilling a subject, the subject including a person and any discernible objects with the person, the method comprising:
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transmitting toward the subject in a subject position, electromagnetic radiation in a frequency range of about 100 MHz to about 2 THz, from positions spaced from the subject position; receiving from the subject electromagnetic radiation emitted from the subject in response to the transmitted electromagnetic radiation; producing an image signal representative of the received radiation; producing from the image signal, image data corresponding to a first image of at least a portion of the subject having picture elements with different levels of intensity; determining whether the image data corresponding to the first image includes characteristics corresponding to an obiect on the person, including determining a correlation of the levels of intensity of at least one group of picture elements with the levels of intensity of a corresponding reference group of picture elements, including identifying at least a portion of the image data corresponding to which there is at least a threshold correlation of the levels of intensity of the picture elements in the at least one group of picture elements with the levels of intensity of the picture elements in the reference group of picture elements, including determining a correlation value of a given picture element that is derived from the intensity levels of a group of associated picture elements arranged relative to the given picture element, including modifying the original intensity level each picture element of the group of associated picture elements, by an amount related to the position of the picture element in the group relative to the given element, and combining the modified intensity levels; and when the image data corresponding to the first image is determined to include characteristics corresponding to an obiect, determining the location in the first image corresponding to image data including characteristics corresponding to an obiect. - View Dependent Claims (2, 3, 4, 5)
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6. A method of surveilling a subject, the subject including a person and any discernible objects with the person, the method comprising:
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transmitting toward the subject in a subject position, electromagnetic radiation in a frequency range of about 100 MHz to about 2 THz, from positions spaced from the subject position; receiving from the subject electromagnetic radiation emitted from the subject in response to the transmitted electromagnetic radiation; producing an image signal representative of the received radiation; producing, from the image signal, image data corresponding to a first image of at least a portion of the subject; determining whether the image data corresponding to the first image includes characteristics corresponding to an object on the person; and when the image data corresponding to the first image is determined to include characteristics corresponding to an object, determining the location in the first image corresponding to image data including characteristics corresponding to an object;
producing, from the image signal, image data corresponding to a second image of at least a portion of the first image including the location corresponding to image data including characteristics corresponding to the object, and displaying a third image representative of at least a portion of the subject corresponding to the location of the object, the third image including at least a portion of the second image and a fourth image, the fourth image including at least a portion of the subject adjacent to the portion of the subject corresponding to the location of the object and having a lower resolution than the first image. - View Dependent Claims (7, 8, 9, 10)
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11. A method comprising:
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interrogating a subject, including a person and any objects carried by the person, with electromagnetic radiation in a range of about 100 MHz to about 2 THz; generating, from the interrogating, first image data having picture elements with different levels of intensity and representative of a first image of at least a portion of the subject; identifying at least a first portion of the first image data having characteristics corresponding to characteristics of an obiect carried by the person, including determining a correlation of the levels of intensity of at least one group of picture elements with the levels of intensity of a corresponding reference group of picture elements, including identifying at least a portion of the first image data corresponding to which there is at least a threshold correlation of the levels of intensity of the picture elements in the at least one group of picture elements with the levels of intensity of the reference group of picture elements, including determining a correlation value for a given picture element that is derived from the intensity levels of a group of associated picture elements arranged relative to the given picture element, including modifying the original intensity level of each picture element of the one group of associated picture elements, by an amount related to the position of the picture element in the first group relative to the given element, and combining the modified intensity levels; and displaying a second image representative of the first portion of the first image data. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method comprising:
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interrogating a subject, including a person and any objects carried by the person, with electromagnetic radiation in a range of about 100 MHz to about 2 THz; generating, from the interrogating, first image data representative of a first image of at least a portion of the subject; identifying at least a first portion of the first image data having characteristics corresponding to characteristics of an obiect carried by the person; displaying a second image representative of the first portion of the first image data, including displaying a third image including the second image and a fourth image, the fourth image including at least a portion of the subject adjacent to the portion of the subject corresponding to the location of the object and having a lower resolution than the first image. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. An imaging system comprising:
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an antenna assembly including at least a first antenna apparatus, each antenna apparatus configured to transmit toward and receive from a subject, including a person and any discernible objects with the person, in a subject position, electromagnetic radiation in a frequency range of about 100 MHz to about 2 THz, from positions spaced from the subject position, the antenna assembly producing an image signal representative of the received radiation; a controller adapted to produce from at least a first portion of the image signal first image data corresponding to a first image of at least a portion of the subject, and to identify at least a first portion of the first image data having characteristics corresponding to characteristics of an object carried by the person; and a display device coupled to the controller, the controller being further adapted to display, on the display, a second image including at least the portion of the first image and a third image, the third image including at least a portion of the subject adjacent to the portion of the first image and having a lower resolution than the first image. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification