Patents by Inventor Elizabeth Lokenberg Dixon
Elizabeth Lokenberg Dixon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7706502Abstract: A cargo container inspection radiation detector apparatus is disclosed. The apparatus includes a support, and a plurality of area radiation detectors disposed upon the support arranged corresponding to a height of the cargo container, each area radiation detector comprising an active area defined by a matrix of pixels.Type: GrantFiled: May 31, 2007Date of Patent: April 27, 2010Assignee: Morpho Detection, Inc.Inventors: Clifford Bueno, Joseph Bendahan, Elizabeth Lokenberg Dixon, Clarence Lavere Gordon, III, William Robert Ross, Donald Earl Castleberry, Forrest Frank Hopkins, Douglas Albagli
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Patent number: 7522756Abstract: A method, system and apparatus for processing a radiographic image of a scanned object is disclosed. A pixel offset correction is performed in integer format on the radiographic image using saturation arithmetic to produce an image in integer format with any negative corrected values clipped to a value of zero. The resulting pixels are converted to floating point format and the converted pixels are multiplied by a gain factor. Optionally the resulting pixels are recursively averaged with previous results. The resulting pixels are converted to integer format and the converted pixel values are clamped to a maximum value using saturation arithmetic. Non-functional pixel correction is performed in integer format and the resulting pixel values are clamped to a maximum value using saturation arithmetic. An optional processing path replaces the recursive average by a linear average. The resulting pixel values are optionally filtered to enhance features of interest.Type: GrantFiled: March 9, 2007Date of Patent: April 21, 2009Assignee: General Electric CompanyInventors: Clifford Bueno, Elizabeth Lokenberg Dixon, Walter Vincent Dixon, Forrest Frank Hopkins, Michael Robert Hopple, Brian Walter Lasiuk, Ronald Cecil McFarland, August David Matula, Robert James Mitchell, Jr., Kevin Layne Moermond, Gregory Alan Mohr
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Patent number: 7499599Abstract: A method and program product for real-time correction of non-functioning pixels in digital radiography, where the method comprises: receiving a list of non-functioning pixels; determining which neighboring functioning pixels are needed to correct the non-functioning pixels; organizing those neighboring functioning pixels and corresponding non-functioning pixels into a plurality of groups by a number of pixels used to perform correction; and performing correction of data from non-functioning pixels within one of the plurality of groups and subsequently performing correction of data from non-functioning pixels within another one of the plurality of groups.Type: GrantFiled: June 12, 2003Date of Patent: March 3, 2009Assignee: General Electric CompanyInventors: Elizabeth Lokenberg Dixon, Walter Vincent Dixon, Clifford Bueno, Gregory Alan Mohr, Brian Walter Lasiuk
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Publication number: 20080298545Abstract: A cargo container inspection radiation detector apparatus is disclosed. The apparatus includes a support, and a plurality of area radiation detectors disposed upon the support arranged corresponding to a height of the cargo container, each area radiation detector comprising an active area defined by a matrix of pixels.Type: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Clifford Bueno, Joseph Bendahan, Elizabeth Lokenberg Dixon, Clarence Lavere Gordon, III, William Robert Ross, Donald Earl Castleberry, Forrest Frank Hopkins, Douglas Albagli
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Publication number: 20080298546Abstract: A method of improving a signal to noise ratio of an image data set of a cargo container is disclosed. The method includes transmitting a radiation beam toward the cargo container, detecting the transmitted radiation beam via a plurality of area radiation detectors, each area radiation detector comprising an active area defined by a matrix of pixels, thereby defining enhanced radiation data, processing the enhanced radiation data and reconstructing the image data set representative of contents of the cargo container, combining image attributes of the image data set to improve the signal to noise ratio, thereby defining an enhanced image data set, and displaying on a display the enhanced image data set comprising an improved signal to noise ratio.Type: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Clifford Bueno, Joseph Bendahan, Elizabeth Lokenberg Dixon, Clarence Lavere Gordon, III, William Robert Ross, Donald Earl Castleberry, Forrest Frank Hopkins, Douglas Albagli, Robert August Kaucic, Jr., William Macomber Leue
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Publication number: 20080266440Abstract: A method of autofocusing includes capturing first, second and third images of a sample, at respective first, second and third sample distances and respective first, second and third lateral positions determined with respect to an objective; determining a quantitative characteristic for the first, second and third images; determining a primary sample distance based upon at least the quantitative characteristics for the first, second, and third images; and capturing a primary image of the sample at the primary sample distance and at a primary lateral position that is offset from the first, second and third lateral positions.Type: ApplicationFiled: August 23, 2007Publication date: October 30, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Siavash Yazdanfar, Robert John Filkins, Elizabeth Lokenberg Dixon, Walter Vincent Dixon, Krenar Tasimi, Kevin Bernard Kenny
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Patent number: 7272254Abstract: A system and method for identifying flaws in a part being inspected includes generating a 3-d representation of the part, the 3-d representation comprising 3-d spatial coordinates corresponding to different locations on the part, and registering the 3-d spatial coordinates with corresponding locations of a part being inspected. An image of the part being inspected is generated, and a flaw in the part being inspected is identified from the generated image. A location of the flaw is correlated to a corresponding 3-d spatial coordinate, and a device is controlled to perform an operation on the part being inspected at the flaw location using information of the corresponding 3-d spatial coordinate.Type: GrantFiled: July 9, 2003Date of Patent: September 18, 2007Assignee: General Electric CompanyInventors: Suneel Tumkur Shankarappa, Gregory Alan Mohr, Mysore Siddu Dinesh, Brian Walter Lasiuk, Ronald Cecil McFarland, Elizabeth Lokenberg Dixon
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Publication number: 20040252910Abstract: A method and program product for real-time correction of non-functioning pixels in digital radiography, where the method comprises: receiving a list of non-functioning pixels; determining which neighboring functioning pixels are needed to correct the non-functioning pixels; organizing those neighboring functioning pixels and corresponding non-functioning pixels into a plurality of groups by a number of pixels used to perform correction; and performing correction of data from non-functioning pixels within one of the plurality of groups and subsequently performing correction of data from non-functioning pixels within another one of the plurality of groups.Type: ApplicationFiled: June 12, 2003Publication date: December 16, 2004Applicant: General Electric CompanyInventors: Elizabeth Lokenberg Dixon, Walter Vincent Dixon, Clifford Bueno, Gregory Alan Mohr, Brian Walter Lasiuk
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Patent number: 6662088Abstract: A method for inspecting an aircraft fuselage using an inspection system including a movable detector, wherein the method includes coupling a collision avoidance system to the inspection system detector, monitoring the collision avoidance system during operation of the inspection system, and controlling operation of the inspection system with the collision avoidance system.Type: GrantFiled: June 28, 2002Date of Patent: December 9, 2003Assignee: General Electric CompanyInventors: Michael Robert Hopple, Elizabeth Lokenberg Dixon, Kenneth Gordan Herd, Gregory Alan Mohr, Clifford Bueno
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Patent number: 6658089Abstract: An image identification and quality indication system for radiographic inspection includes a flexible substrate, for positioning on a surface of an object to be inspected, and a number of locators and image quality indicators arranged on the flexible substrate. Each locator is configured for indicating a position on the object's surface in a respective radiographic image (image). Each image quality indicator is configured to indicate an image quality of the respective image. An image identification and quality indication method for radiographic inspection includes positioning the flexible substrate on the object's surface, including aligning the locators with a number of visible features on object's surface. The method further includes forming at least one reference mark and image quality mark in each of a number of images of the object, using a locator and image quality indicator, respectively. Each reference mark correlates the respective image with a position on the object.Type: GrantFiled: July 11, 2002Date of Patent: December 2, 2003Assignee: General Electric CompanyInventors: Gregory Alan Mohr, Elizabeth Lokenberg Dixon, Michael Robert Hopple, August David Matula