Imaging systems and methods are provided for detecting object that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly and mechanisms for moving the imaging assembly may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject.
Imaging systems and methods are provided for scanning a patient's head using a portable CT scanner. An imaging assembly can comprise a portable scan board on which a patient is positioned, and a corresponding portable CT scanner positioned and locked onto the portable scan board. The portable CT scanner and the portable scan board can form a portable CT scanning assembly capable of rotating an X-ray source and corresponding X-ray detector around the patient's head to transmit X-rays through the patient's head at one or more angles, while translating across the portable scan board to scan one or more portions of the patient's head. A composite image reconstructed based on the rotational and translational scanning is generated representing one or more interior aspects of the patient's head.
Imaging systems and methods are provided for scanning a patient's head using a portable CT scanner. An imaging assembly can comprise a portable scan board on which a patient is positioned, and a corresponding portable CT scanner positioned and locked onto the portable scan board. The portable CT scanner and the portable scan board can form a portable CT scanning assembly capable of rotating an X-ray source and corresponding X-ray detector around the patient's head to transmit X-rays through the patient's head at one or more angles, while translating across the portable scan board to scan one or more portions of the patient's head. A composite image reconstructed based on the rotational and translational scanning is generated representing one or more interior aspects of the patient's head.
Imaging systems and methods are provided for detecting object that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly and mechanisms for vertically moving the imaging assembly may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject. A calibration system assembly can be included, comprising a first calibration assembly and second calibration assembly to perform fine-grained adjustments to the positioning of the X-ray detector.
Imaging systems and methods are provided for detecting object that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly and mechanisms for vertically moving the imaging assembly may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject. A calibration system assembly can be included, comprising a first calibration assembly and second calibration assembly to perform fine-grained adjustments to the positioning of the X-ray detector.
Imaging systems and methods are provided for detecting object that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly and mechanisms for vertically moving the imaging assembly may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject. A calibration system assembly can be included, comprising a first calibration assembly and second calibration assembly to perform fine-grained adjustments to the positioning of the X-ray detector.
Imaging systems and methods are provided for detecting objects that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly, e.g., X-ray source and X-ray detector, and mechanisms, e.g., a translational mechanism for vertically moving the imaging assembly, may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject.
Imaging systems and methods are provided for detecting object that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly and mechanisms for vertically moving the imaging assembly may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject. A calibration system assembly can be included, comprising a first calibration assembly and second calibration assembly to perform fine-grained adjustments to the positioning of the X-ray detector.
Imaging systems and methods are provided for detecting objects that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly, e.g., X-ray source and X-ray detector, and mechanisms, e.g., a translational mechanism for vertically moving the imaging assembly, may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject.
Imaging systems and methods are provided for detecting objects that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly, e.g., X-ray source and X-ray detector, and mechanisms, e.g., a translational mechanism for vertically moving the imaging assembly, may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject.
Imaging systems and methods are provided for detecting objects that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly, e.g., X-ray source and X-ray detector, and mechanisms, e.g., a translational mechanism for vertically moving the imaging assembly, may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject.
Imaging systems and methods are provided for detecting objects that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly, e.g., X-ray source and X-ray detector, and mechanisms, e.g., a translational mechanism for vertically moving the imaging assembly, may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject.
Imaging systems and methods are provided for detecting objects that may be hidden under clothing, ingested, inserted, or otherwise concealed on or in a person's body. An imaging assembly, e.g., X-ray source and X-ray detector, and mechanisms, e.g., a translational mechanism for vertically moving the imaging assembly, may be configured to reduce the overall form factor of such imaging systems, while still retaining an ability to perform full/complete imaging of a subject.
Body scanners are used in airports and other secured facilities to detect weapons, explosives, and other security threats hidden under persons' clothing. These devices use x-rays, millimeter waves and other radiant energy to produce an electronic image of the person's body and any concealed objects. Examination of these images by human analysts is slow, expensive, and subject to privacy concerns. The Invention provides automated analysis by comparing each image against a database of previous scans, using a plurality of subjects with different body types. This comparison is facilitated by digitally mapping each body scanner image to humanoid coordinates. This overcomes the failings of the prior art by allowing each anatomic location on one person to be referenced to the same anatomic location on all other persons.
G06K 9/62 - Methods or arrangements for recognition using electronic means
G06F 16/583 - Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
This Invention is directed at the automated analysis of body scanner images. Body scanners are used in airports and other secured facilities to detect weapons, explosives, and other security threats hidden under persons' clothing. These devices use x-rays, millimeter waves and other radiant energy to produce an electronic image of the person's body and any concealed objects. Examination of these images by human analysts is slow, expensive, and subject to privacy concerns. The Invention provides automated analysis of body scanner images by recognizing that human anatomy is bilaterally symmetric to a high degree, while concealed objects are asymmetric. Digital techniques are used to separate the scanned image into its symmetric and asymmetric parts, thereby effectively separating anatomic from non-anatomic image features.
The inventive body scanner is used to screen persons entering a security controlled area for the presence of security threats hidden under the clothing, such as guns, knifes, explosives and contraband. The Invention is an improvement on prior art body scanners that operate primarily by acquiring backscatter x-ray images, but only acquire transmission images over a limited part of the person's body. These prior art systems provide x-ray sources on the anterior and posterior sides of the person being screened, and x-ray sensitive detectors on the sides of these x-ray sources. While sufficient for backscatter imaging, the gaps between these detectors results in blind areas in the transmission images, resulting in lower ability to detect security threats hidden under the clothing. The present Invention overcomes these limitations of the prior art by providing x-ray sensitive detector on the outside of the x-ray sources. That is, the pair of x-ray sources are located within the pair of x-ray detectors, and the person being screened is located within the pair of x-ray sources. In conjunction with this imaging geometry, spatial offsets in the location of the x-ray sources provide effectively full transmission coverage for transmission imaging.
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
G01V 5/00 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
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