General Electric Company

Morpho Detection, Inc.

Purdue Research Foundation

Ge Medical Systems Global Technology Company, LLC

University of Notre Dame Du Lac

Smiths Detection Inc.

University of Michigan

Samit Kumar Basu

Peter Michael Edic

Bruno Kristiaan Bernard De Man

Bruno De Man

Xiaoye Wu

Jiang Hsieh

John Eric Tkaczyk

Colin Richard Wilson

Bruno Kristiaan Bernard DeMan

Maria Iatrou

Pedro Andres Garzon

Jed Douglas Pack

James Walter LeBlanc

Zhye Yin

Ricardo Scott Avila

William Robert Ross

Deborah Joy Walter

Eugene Alex Ingerman

Mark Ernest Vermilyea

Pierfrancesco Landolfi

Bruno K B De Man

Todd Jason Gable

Charles Addison Bouman

Yanfeng Du

Ken David Sauer

Jonathan David Short

Forrest Frank Hopkins

Robert August Kaucic

William Macomber Leue

Sondre Skatter

Erdogan Cesmeli

Steven Leslie Hills

Jian Gao

Jared William Moore

Qi Zhao

Anthony James Murch

Jong Chul Ye

Jean-Baptiste Daniel Marie Thibault

Bruno DeMan

Brian Lee Bures

Geoffrey Harding

James Wilson Rose

Antonio Caiafa

Daniel David Harrison

Robert F Senzig

David Allen Langan

James Vradenburg Miller

Alexander Katsevich

Thomas Baby Sebastian

Souma Sengupta

David Ruimi

Wen Li

Zhou Yu

Jerome Stephen Arenson

Christopher David Unger

Scott Stephen Zelakiewicz

Jeffrey Allen Fessler

Paulo Ricardo Dos Santos Mendonca

Colin Craig McCulloch

Erik Edmund Magnuson

Evgeny Drapkin

Peter Claudius Sanza

Mark Allen Woodmansee

Jeffrey Seymour Gordon

John Charles Hill, Jr

Dirk Bequé

Kevin Michael Hinckley

Matthew Allen Merzbacher

Gabriel Zienert

Weiguo Chen

Brian Patrick Smyth

Sussan Pourjavid-Granfors

Bernhard Claus

John Schmiederer

Nadeem Ishaque

Chunhe Gong

Joshua M Temkin

Seungseok Oh

John Charles Hill

Colin Craig Mc Culloch

Eugene Lino Saragnese

Dmitry Samsonov

Fracis Howard Little

John McLeod

Vijay Kumar Yaram

Yikang Gu

Elzind Ihab

Mikhail Kourinny

Erik E Magnuson

A CT imaging system for imaging an object is provided. The CT imaging system includes a stationary component, a rotating component configured to rotate with respect to the stationary component, a first conductive line coupled to the stationary component, and a second conductive line coupled to the rotating component, wherein the first and second conductive lines are positioned proximate one another such that inductive crosstalk between the first and second conductive lines provides a contactless communication channel for communicating data between the stationary component and the rotating component.

Contactless data communication in CT systems

A detector assembly for a CT imaging system is provided. The detector assembly including a scintillator block including a plurality of pixels, each pixel configured to receive x-ray beams travelling in a transmission direction, a plurality of photodiodes, and a light guide coupled between the scintillator block and the plurality of photodiodes, the light guide including a plurality of light pipes, each light pipe configured to guide light emitted from a pixel of the plurality of pixels into an associated photodiode of the plurality of photodiodes, wherein each pixel has a first cross-sectional area that is substantially perpendicular to the transmission direction, wherein each photodiode has a second cross-sectional area that is substantially perpendicular to the transmission direction, and wherein the first cross-sectional area is different from the second cross-sectional area.

Detector assembly for use in CT imaging systems

A luggage detection device is configured to detect luggage by generating computed tomography (CT) imaging slices. For each of the CT imaging slices, the luggage detection device is configured to identify at least one region within the CT imaging slice for removal based on at least one predefined rule, to remove pixel data associated with the at least one identified region within the CT imaging slice, to generate a pixel count representing a number of pixels in the modified CT imaging slice that include a value above a threshold pixel value, and to generate an object indicator based on a determination that the generated pixel count is above a threshold pixel count. The luggage detection device is further configured to display at least one of the plurality of CT image slices based on the presence of the corresponding baggage indicator.

Systems and methods for detecting luggage in an imaging system

A compression device for compressing image data generated by a computed tomography (CT) imaging system is described herein. The compression device is configured to compress the image data by implementing a method including receiving image data from the CT imaging system and requantizing the image data in a square root domain. The method further includes identifying a group of projections (GOP) in the image data, including a first projection and a plurality of subsequent projections, and performing spatial-delta encoding on the first projection and temporal-delta encoding on each of the plurality of subsequent projections. The method also includes identifying a signed value in the GOP, and converting the signed value to an unsigned value. The method further includes entropy coding the image data in the GOP, and packetizing the GOP for transmission or storage.

Systems and methods for compressing image data generated by a computed tomography (CT) imaging system

A gantry rail for a gantry computed tomography (CT) system includes a secondary side of a rotary transformer and an annular body having an annular rolling surface and an annular slip ring surface. The annular body is aligned orthogonal to a longitudinal axis of the gantry CT system. The annular rolling surface has a normal vector that extends radially outward and orthogonal to the longitudinal axis. The annular slip ring surface defines a plane orthogonal to the longitudinal axis, and includes a slot disposed in the slip ring surface. The slot is configured to engage the secondary side of the rotary transformer.

Open drum gantry for computed tomography system

A controller for detecting objects moving in a first direction in a computed tomography (CT) imaging system is provided. The controller is configured to detect objects by assembling a plurality of segments based on a plurality of CT imaging slices. In response to receiving a stop request, the controller is configured to detect objects by causing the CT imaging system to cease a flow of objects, discarding the one or more of the plurality of CT imaging slices associated with a first segment and a second segment of the plurality of segments, causing the CT imaging system to move the objects in a second direction for an interruption distance in which the second direction is opposite the first direction, causing the CT imaging system to move the objects in the first direction, and reassembling the first segment and the second segment.

System and method for detecting and reconstructing objects in a non-continuous stream of items in an imaging system

A computed tomography (CT) gantry system is described herein. The CT gantry system includes a frame, a plurality of support wheels rotatably coupled to the frame, and a gantry resting upon the plurality of support wheels. In some embodiments, the gantry includes two gantry rings, and a cross member extending between the two gantry rings. In other embodiments, the gantry includes a first gantry ring, and a second gantry ring spaced apart from the first gantry ring in a direction parallel to an axis of rotation of the gantry. In some embodiments, the plurality of support wheels includes a plurality of front support wheels and a plurality of back support wheels. In some embodiments, the gantry includes a front gantry ring resting upon the front support wheels, a back gantry ring resting upon the back support wheels, and a cross member coupled between the front and back gantry rings.

Gantry system with support wheels

A helical CT scanner for imaging an object is provided. The helical CT scanner includes an X-ray emitter configured to emit X-ray beams towards the object, and a detector array positioned opposite the X-ray emitter, the detector array including a plurality of discrete detector blocks arranged in a two-dimensional grid, each detector block including a plurality of pixels, wherein at least one first gap is defined between adjacent detector blocks in a first direction, and wherein at least one second gap is defined between adjacent detector blocks in a second direction. The helical CT scanner further includes a processing device communicatively coupled to said detector array, said processing device configured to reconstruct an image of the object based on image data acquired using said detector array.

Detector assemblies and methods for helical CT scanning

A line-frequency rotary transformer is provided, including a primary core and a secondary core. The primary core is magnetically couplable to the secondary core. The primary core includes a first plurality of E-core steel laminates arranged in a first ring couplable to a stator. The primary core includes a primary winding disposed within the first ring and configured to transmit line-frequency AC power. The secondary core includes a second plurality of E-core steel laminates arranged in a second ring couplable to a gantry. The gantry is rotatably couplable to the stator. The secondary core includes a secondary winding disposed within the second ring and is configured to receive a line-frequency AC power induced in the secondary winding through the primary core and the secondary core by the primary winding.

Line-frequency rotary transformer for computed tomography gantry

A gantry assembly for use with an imaging system is provided. The gantry assembly includes an x-ray source and a modular detector assembly that includes a plurality of selectively removable detector modules. A first detector module of the plurality of detector modules is mounted at a first distance from the x-ray source and a second detector module of the plurality of detector modules is mounted at a second distance from the x-ray source. The first distance is different from the second distance. The gantry assembly is configured to image objects using both a first field of view and a second field of view that is larger than the first field of view.

Systems and methods for x-ray CT scanner with reconfigurable field of view

A radiation detector is provided. The radiation detector includes an outer casing, at least one first detector disposed within said outer casing, the at least one first detector configured to primarily detect gamma ray radiation, at least one second detector disposed within the outer casing, the at least one second detector configured to primarily detect neutron radiation, and a computing device disposed within the outer casing and communicatively coupled to the at least one first detector and the at least one second detector. The computing device is configured to receive first data from the at least one first detector, receive second data from the at least one second detector, determine a number of neutrons and gamma rays detected based on the first and second data, and determine a detected energy spectrum based on the first and second data.

Cross-correlated gamma ray and neutron detector

An X-ray CT scanner for imaging an object is provided. The scanner includes an X-ray emitter configured to emit X-ray beams, a detector array including a plurality of detector elements, and a precollimator positioned between the X-ray emitter and the object, the precollimator configured to prevent the emitted X-ray beams from being directly incident on a first subset of the plurality of detector elements, and allow the emitted X-ray beams to be directly incident on a second subset of said plurality of detector elements. A processing device communicatively coupled to the detector array is configured to determine a signature of the object based on a first set of data acquired using the first subset of the plurality of detector elements, and tomographically reconstruct an image of the object based on a second set of data acquired using the second subset of said plurality of detector elements.

Systems and methods for imaging and determining a signature of an object

An imaging system is provided. The imaging system includes a rotating gantry. An x-ray source is mounted to the gantry. The system also includes a plurality of interchangeable x-ray detector modules is mounted to the gantry, opposite the x-ray source. The plurality of interchangeable detector modules includes a first detector module mounted at a first distance from the x-ray source and a second detector module mounted at a second distance from the x-ray source. The first distance is different from the second distance.

Compact geometry CT system

A method of performing a security inspection of a container including a plurality of objects includes irradiating the container with polychromatic x-rays, reconstructing a 4-D voxelized representation defining a momentum transfer spectrum, and generating a 3-D image by determining a single value at each voxel as a function of the momentum transfer spectrum. The method further includes segmenting the voxels into segments of contiguous voxels that map onto at least one object. The method also includes computing an aggregated momentum transfer spectrum over at least a portion of the contiguous voxels through at least one of aggregating the spectra of the contiguous voxels for each segment and defining a supervoxel that includes voxels with the object exclusively and voxels in a neighborhood, regardless of association with the object. The method further includes classifying the object as one of a threat and a non-threat based on the aggregated momentum transfer spectrum.

X-ray diffraction imaging system with signal aggregation across voxels containing objects and method of operating the same

A method for imaging an object is provided. The method includes acquiring image data of the object, wherein the image data includes a plurality of original voxels, and identifying, using a processing device, a first subset of voxels from the acquired image data. The method also includes performing a principal component analysis (PCA) on the first subset of voxels and determining whether sheet-like material is present in the object based on the results of the performed PCA on the first subset of voxels.

Systems and methods for imaging and detecting sheet-like material

Growing community of inventors

Niskayuna, NY, United States of America

Samit Kumar Basu