Beam Detection System Patents (Class 378/19)
  • Patent number: 11385191
    Abstract: An image acquisition system includes a radiation source configured to output radiation toward an object, a rotating stage configured to rotate the object around a rotation axis, a radiation camera having an input surface to which the radiation transmitted through the object is input and an image sensor capable of TDI control, and an image processing apparatus configured to generate a radiographic image of the object at an imaging plane P based on the image data. The angle formed between the rotation axis of the rotating stage and the input surface of the radiation camera is set in accordance with the FOD which is the distance between the radiation source and an imaging plane in the object. The radiation camera is configured to perform TDI control in the image sensor in synchronization with the rotational speed of the object rotated by the rotating stage.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: July 12, 2022
    Inventors: Mototsugu Sugiyama, Tatsuya Onishi
  • Patent number: 11375964
    Abstract: In an embodiment of the present disclosure, in order to raise the reproducibility of a reconstructed tomographic image without increasing a calculation load, any one among two directions adjacent to two boundaries that demarcate an angular scan range is offset from any one among coordinate axes of a two-dimensional tomographic image of N pixels×N pixels, and the angle of the offset is made to be above 0 degrees and under 90 degrees or above ?90 degrees and under 0 degrees. A detection device, which includes N detection elements, performs detection in each detection direction, and a first vector having N×N elements is obtained from a detection signal obtained by the detection device in a detection operation. A discrete Inverse Radon transform matrix is applied to the first vector to obtain a second vector having N×N elements. The second vector is de-vectorized to obtain image data for a two-dimensional tomographic image of N pixels×N pixels.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: July 5, 2022
    Assignees: RIKEN, Nissan Chemical Corporation
    Inventors: Naohiro Kanda, Takaoki Takanashi
  • Patent number: 11373778
    Abstract: In one embodiment, an automated high-speed X-ray inspection tool may emit, by an X-ray source, an X-ray beam to an object of interest with a portion of the X-ray beam penetrating through the object of interest. The automated high-speed X-ray inspection tool may capture, by an X-ray sensor, one or more X-ray images of the object of interest based on the portion of the X-ray beam that penetrates through the object of interest. Each of the X-ray images may be captured with a field of view of at least 12 million pixels.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: June 28, 2022
    Assignee: Bruker Nano, Inc.
    Inventor: David Lewis Adler
  • Patent number: 11367185
    Abstract: A fully image-based framework for CT image, or other medical image, quality evaluation and virtual clinical trial using deep-learning techniques is provided. This framework includes deep learning-based noise insertion, lesion insertion, and model observer, which enable efficient, objective, and quantitative image quality evaluation and virtual clinical trial directly performed on patient images.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: June 21, 2022
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Lifeng Yu, Hao Gong, Shuai Leng, Cynthia H. McCollough
  • Patent number: 11354832
    Abstract: A non-transitory computer readable medium storing instructions readable and executable by an imaging workstation (14) including at least one electronic processor (16) to perform a dataset generation method (100) operating on emission imaging data acquired of a patient for one or more axial frames at a corresponding one or more bed positions, the method comprising: (a) identifying a frame of interest from the one or more axial frames; (b) generating simulated lesion data by simulating emission imaging data for the frame of interest of at least one simulated lesion placed in the frame of interest; (c) generating simulated frame emission imaging data by simulating emission imaging data for the frame of interest of the patient; (d) determining a normalization factor comprising a ratio of the value of a quantitative metric for the simulated patient data and the value of the quantitative metric for the emission imaging data acquired of the same patient for the frame of interest; and (e) generating a hybrid data set
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: June 7, 2022
    Inventors: Chuanyong Bai, Andriy Andreyev, Xiyun Song, Jinghan Ye, Bin Zhang, Shekhar Dwivedi, Yanfei Mao, Zhiqiang Hu
  • Patent number: 11346660
    Abstract: A calibration method of an X-ray measuring device includes: a front-stage feature position calculation step of parallelly moving spheres disposed in N places a plurality of times, and identifying centroid positions ImPos(1 to Q)_Dis(1 to M)_Sphr_(1 to N) of projected images of the spheres in the N places; an individual matrix calculation step of calculating an individual projection matrix PPj (j=1 to Q) for each of the spheres; an individual position calculation step of calculating moving positions Xb of the spheres on the basis of the individual projection matrix PPj (j=1 to Q); a coordinate integration step of calculating specific relative position intervals X(1 to N) of the spheres; a rear-stage feature position calculation step; a transformation matrix calculation step of calculating a projective transformation matrix Hk (k=1 to Q); a rotation detection step; a position calculation step; and a center position calculation step.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: May 31, 2022
    Inventors: Masato Kon, Hiromu Maie, Seiji Sasaki, Jyota Miyakura
  • Patent number: 11327198
    Abstract: The present disclosure relates to the technical field of CT detection, in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure includes a scanning device and an imaging device, wherein the scanning device having a radioactive source device and a detection device is configured to rotate at a nonuniform speed in at least partial process of scanning an object to be detected; and the imaging device generates a CT image based on effective detection data, wherein the effective detection data refer to data acquired each time the detection device rotates by a preset angle. In the present disclosure, the imaging device of the CT inspection system generates a CT image based on data acquired each time the detection device rotates by a preset angle, which, compared with traditional image collection solutions, can effectively reduce image deformation and improve accuracy of detection results.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 10, 2022
    Inventors: Xiulin Ni, Jianmin Li, Haitian Tan, Yulan Li, Weifeng Yu, Yuanjing Li, Hejun Zhou, Zhiqiang Chen, Chunguang Zong, Li Zhang
  • Patent number: 11262318
    Abstract: An adaptor for a turntable of a CT system includes at least two object turntables for at least two objects and a rotation transmission element configured to be coupled to the turntable of the CT system. The two object turntables are coupled to each other using a coupler such that the at least two object turntables rotate simultaneously. The rotation transmission element is coupled to the coupler and configured to transmit a rotation from the turntable of the CT system to the coupler in order to drive the at least two object turntables.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: March 1, 2022
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Michael Salamon, Florian Gabsteiger, Carina Kreutner, Johannes Leisner
  • Patent number: 11249034
    Abstract: There is provided an X-ray Talbot capturing apparatus that emits X-rays in a cone beam shape from an X-ray generator, capable of producing gratings as easily as possible and of minimizing a production cost. An X-ray Talbot capturing apparatus 1 includes a G1 grating that is a phase grating, a G2 grating that is an absorption grating, a X-ray generator 11 that emits the X-rays, and an X-ray detector that includes a plurality of two-dimensionally arrayed conversion elements and captures a moire image Mo formed on the G2 grating. The G2 grating is located at a position where a self-image of the G1 grating 14 is formed, and both of the G1 grating and the G2 grating are in a plane shape. Slits of the G1 grating are formed to be perpendicular to a surface direction of a substrate on which the grating is formed, whereas slits of the G2 grating are formed to be parallel with the X-rays emitted in the cone beam shape from a focus F of the X-ray generator.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: February 15, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventor: Junko Yoshida
  • Patent number: 11226296
    Abstract: A tunnel computerised tomographic scanner comprising a rotor (3), an X-ray emitter (7) mounted on the rotor (3), an X-ray detector (8) mounted on the rotor (3), on the opposite side of a detecting zone (4), the X-ray detector (8) comprising a scintillator (9) which has at least one emission face (10) from which the scintillator (9) emits light in the visible spectrum when it is struck by X-rays, and a plurality of video cameras (12) which are positioned in such a way that each of them frames at least one portion of the scintillator (9), for acquiring one after another second images, in the visible spectrum, of the respective portion of the scintillator (9), wherein, according to the method, at least two separate video cameras (12) substantially frame each zone of the emission face (10), and an electronic processing unit is programmed to combine all of the second images obtained by the video cameras (12) and to obtain a first image of the emission face (10), to be used for the tomographic reconstruction of an
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: January 18, 2022
    Assignee: MICROTEC S.R.L.
    Inventors: Marco Boschetti, Enrico Ursella
  • Patent number: 11219425
    Abstract: The invention relates to off-center detector X-ray tomography reconstruction of an image of an object on the basis of projection data acquired during a rotation of an X-ray source and the off-center detector around the object in two rotational passes of less than 360°, wherein a focus point of the X-ray beam travels along largely overlapping arcs (401, 402) in the two rotational passes, the off-center detector being positioned asymmetrically with respect to a central of the X-ray beam and a direction of a detector offset being reversed between the passes. According to the invention, redundancy weighting of the projection data with respect to a redundant acquisition of projection values during each of the rotational passes is made using a redundancy weighting function determined on the basis of a union of the arcs (401, 402).
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: January 11, 2022
    Inventor: Dirk Schäfer
  • Patent number: 11215718
    Abstract: Among other things, one or more techniques and/or systems are described for setting a sampling frequency for a radiation imaging system. The radiation imaging system comprises a rotating gantry configured to rotate a radiation source and a detector array about an object to generate an image(s) of the object. A data acquisition system is configured to sample the detector array as views. One or more flag structures are arranged according to a partial arc segment (e.g., a structure less than a full 360 degree circle). One or more sensors are disposed on one of the rotating gantry or a stationary support about which the rotating gantry rotates. When a sensor encounters a flag structure, a current rotational speed of the rotating gantry is determined. A clock frequency is updated based upon the current rotational speed to establish a sampling frequency for the data acquisition system for sampling the detector array.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 4, 2022
    Assignee: Analogic Corporation
    Inventors: Patrick Richard Splinter, Steven Dana Weed, David Gino Vacca, Sevag Minas Zoboyan
  • Patent number: 11204432
    Abstract: A photon counting device includes a plurality of pixels each including a photoelectric conversion element configured to convert input light to charge, and an amplifier configured to amplify the charge converted by the photoelectric conversion element and convert the charge to a voltage, an A/D converter configured to convert the voltages output from the amplifiers of the plurality of pixels to digital values; and a conversion unit configured to convert the digital value output from the A/D converter to the number of photons by referring to reference data, for each of the plurality of pixels, and the reference data is created based on a gain and an offset value for each of the plurality of pixels.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: December 21, 2021
    Inventors: Tadashi Maruno, Eiji Toda, Mao Nakajima, Teruo Takahashi, Takafumi Higuchi
  • Patent number: 11197643
    Abstract: A detector system for an x-ray imaging device includes a detector chassis, a plurality of sub-assemblies mounted to the detector chassis and within an interior housing of the chassis, the sub-assemblies defining a detector surface, where each sub-assembly includes a thermally-conductive support mounted to the detector chassis, a detector module having an array of x-ray sensitive detector elements mounted to a first surface of the support, an electronics board mounted to a second surface of the support opposite the first surface, at least one electrical connector that connects the detector module to the electronics board, where the electronics board provides power to the detector module and receives digital x-ray image data from the detector module via the at least one electrical connector. Further embodiments include x-ray imaging systems, external beam radiation treatment systems having an integrated x-ray imaging system, and methods therefor.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: December 14, 2021
    Assignee: Mobius Imaging, LLC
    Inventors: Eugene A. Gregerson, Russell Stanton
  • Patent number: 11185312
    Abstract: An imaging conditions acquisition unit acquires imaging conditions relevant to the positioning of an irradiation device and a radiation detector for acquiring a medical image. An imaging control unit controls the irradiation device and the like so as to acquire a pre-shot image or the medical image of the subject. A correction amount calculation unit calculates the correction amount of the imaging conditions based on the pre-shot image. A notification unit sends notification of the correction amount.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 30, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Keigo Nakamura
  • Patent number: 11187584
    Abstract: A measurement system includes an optical source (e.g., laser) to irradiate a sample (e.g., a cell); a solid-state photon detector (SSPD) to receive resultant light from the sample; and a photon counter to count photons received by the SSPD. The photon counter can include a differentiator to provide a differentiated photon signal and a crossing detector configured to count photons based on a number of times the differentiated photon signal crosses a predetermined threshold level. In some examples, a pulse detector can provide a pulse-width signal from the SSPD output photon signal, and a pulse counter can count based on both a number of pulses and widths of the pulses. The SSPD can include a silicon photomultiplier (SiPM) array or a solid-state photomultiplier. Some examples use the measurement system to measure samples in fluids, e.g., in flow cytometers or multi-well plates.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: November 30, 2021
    Assignee: CAPTL LLC
    Inventors: Masanobu Yamamoto, Keegan Hernandez, J. Paul Robinson
  • Patent number: 11166685
    Abstract: A radiation detector according to an embodiment includes a plurality of radiation detector modules and a fixing frame. When a radiation detector module is attached to the fixing frame, a guiding part with a groove shape formed at an end of a support member of the radiation detector module on a side of the fixing frame is fitted to a guiding pin provided to an end of the fixing frame, so that the radiation detector module is positioned in a radiation irradiation direction while a movement thereof in a channel direction and a row direction is restricted.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: November 9, 2021
    Inventors: Masao Takayasu, Minoru Horinouchi, Akira Nishijima
  • Patent number: 11170541
    Abstract: An image display apparatus includes a depth map creating unit that creates, on the basis of a two-dimensional radiation image and a plurality of tomographic images for the same subject, a plurality of depth maps in which each position on the two-dimensional radiation image and depth information indicating a depth directional position of a tomographic plane corresponding to each position are associated with each other while changing a correspondence relationship between each position on the two-dimensional radiation image and the depth information.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: November 9, 2021
    Inventor: Junya Morita
  • Patent number: 11154260
    Abstract: An apparatus for computed tomography imaging of a patient has a rotatable mount that is actuable to rotate about a rotation axis and that supports, at opposite ends an x-ray source and an x-ray detector, wherein the x-ray source is disposed to direct a radiation beam through the patient and toward the detector. A patient positioning apparatus positions the patient relative to the rotation axis. A control logic processor controls rotation of the rotatable mount and acquires image data for the patient at each of a number of angular positions about the rotation axis. A collimator is disposed in front of the x-ray source and controlled by the control logic processor to center the radiation beam, at each of the plurality of angular positions, on a region of interest that is spaced apart from the rotation axis.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 26, 2021
    Assignee: TROPHY
    Inventors: Sylvie M. Bothorel, Vincent Loustauneau, Colombe Maury, Jean-Marc Inglese
  • Patent number: 11141128
    Abstract: The techniques disclosed may be used to detect and correct channel gain errors resulting from X-ray focal spot mis-alignment during the course of a scan. One benefit of the present invention relative to conventional techniques is that additional hardware is not required for detection of focal spot drift. Instead, the static mis-alignment of each blade is taken into account as part of estimating and correcting X-ray focal spot drift or mis-alignment. In this manner, the risk of image artefacts due to focal spot motion is reduced and the need for costly hardware solutions to detect focal spot motion is avoided.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: October 12, 2021
    Inventors: Biju Jacob, Mingye Wu, Mark Allen Adamak
  • Patent number: 11131780
    Abstract: The invention relates to a radiation detector (1), an imaging system and a related method for radiation detection. The detector comprises a direct conversion material (2) for converting x-ray and/or gamma radiation into electron-hole pairs by direct photon-matter interaction. The detector comprises an anode (3) and a cathode (4) arranged on opposite sides of the direct conversion material (2) such that the electrons and holes can respectively be collected by the anode and cathode. The cathode is substantially transparent to infrared radiation. The detector comprises a light guide layer (5) on the cathode at a side of the cathode that is opposite of the direct conversion material, in which the light guide layer is adapted for distributing infrared radiation over the direct conversion material. The detector comprises a reflector layer (6) arranged on the light guide layer (5) at a side opposite of the cathode, in which the reflector layer is adapted for substantially reflecting infrared radiation.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 28, 2021
    Inventors: Roger Steadman Booker, Christoph Herrmann
  • Patent number: 11116461
    Abstract: An imaging system comprises an adaptor plate configured to be removably coupled to a gantry structure of the imaging system, a plurality of detectors configured to be removably coupled to the adaptor plate, and one or more conduits for a fluid to flow through, wherein the fluid is used to cool the imaging system.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: September 14, 2021
    Inventors: Raed Khamaisi, Asaf Shtern
  • Patent number: 11116997
    Abstract: The present disclosure discloses a radiotherapeutic device. The radiotherapeutic device comprises a gantry, at least two therapeutic heads, a first detector and a slide driving unit. The slide driving unit comprises a sliding guide rail, a driving apparatus and a movable block. The first detector is fixed on the movable block and is driven by the movable block via the driving apparatus to slide along the sliding guide rail to different positions to receive radiation beams emitted by therapeutic heads.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: September 14, 2021
    Assignee: Our United Corporation
    Inventors: Fangzheng Chen, Haifeng Liu
  • Patent number: 11103198
    Abstract: A production method for test X-ray includes preparation (S10) of first CT data (B) of an inspection object, second CT data (BM) for metal portions of the inspection object, and third CT data (TM) for metal portions of a target object, transformation (S20) of the first, second, and third CT data (B, BM, TM) from the image space (BR) into corresponding first sinogram data (SB), second sinogram data (SBM), and third sinogram data (STM) in the radon space (RR), calculation (S30, S40) of the artifact sinogram data (SA), back-transformation (S50) of the artifact sinogram data (SA) from the radon space (RR) into the image space (BR) in CT artifact data (A) for the artifacts that are to be inserted, and insertion of the CT artifact data (A) into the first CT data (B).
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: August 31, 2021
    Inventors: Markus Durzinsky, Marc Andreas Mörig, Sebastian König
  • Patent number: 11099282
    Abstract: Detector module designs for radiographic imaging include first and second layers of scintillator rods or pixel arrays oriented in first and second directions. The first and second directions are transversely oriented to define a light sharing region between the first and second layers. Encoding features may be disposed in, on or between the first and second layers, and configured to modulate propagation of optical signals therealong or therebetween.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: August 24, 2021
    Assignee: Minnesota Imaging and Engineering LLC
    Inventors: Robert Sigurd Nelson, William Bert Nelson
  • Patent number: 11067708
    Abstract: An apparatus for detecting radiation, comprising: a first radiation absorption layer configured to generate first electrical signals from a photon of the radiation absorbed by the first radiation absorption layer, wherein the first radiation absorption layer comprises a first electrode; an electronic system configured to process the first electrical signals; a counter configured to register a number of photons absorbed by the radiation absorption layer; a controller; the controller is configured to cause the number registered by the counter to increase by one; a power supply; and a communication interface configured for the electronic system to communicate with outside circuitry.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: July 20, 2021
    Inventors: Peiyan Cao, Yurun Liu
  • Patent number: 11061148
    Abstract: A radiation imaging apparatus comprises: a detecting unit configured to obtain measurement information that is based on the result of detection of radiation with which a subject has been irradiated; an obtaining unit configured to obtain an average energy of the radiation based on pieces of measurement information obtained through measurement of the radiation that has been performed a plurality of times; and a correction unit configured to correct the average energy based on a characteristic of the radiation with which the subject has been irradiated.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: July 13, 2021
    Inventor: Jumpei Shirono
  • Patent number: 11033757
    Abstract: Disclosed herein are systems and methods for guiding the delivery of therapeutic radiation using incomplete or partial images acquired during a treatment session. A partial image does not have enough information to determine the location of a target region due to, for example, poor or low contrast and/or low SNR. The radiation fluence calculation methods described herein do not require knowledge or calculation of the target location, and yet may help to provide real-time image guided radiation therapy using arbitrarily low SNR images.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: June 15, 2021
    Assignee: RefleXion Medical, Inc.
    Inventors: Yevgen Voronenko, Peter Demetri Olcott, Debashish Pal, Rostem Bassalow
  • Patent number: 11029426
    Abstract: Disclosed herein is a detector, comprising: a plurality of pixels, each pixel configured to count numbers of X-ray photons incident thereon whose energy falls in a plurality of bins, within a period of time; an X-ray absorption layer; wherein the X-ray absorption layer comprises an electrical contact within each of the pixels, and a focusing electrode surrounding the electrical contact and configured to direct to the electrical contact charge carriers generated by an X-ray photon incident within confines of the focusing electrodes; and wherein the detector is configured to add the numbers of X-ray photons for the bins of the same energy range counted by all the pixels.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: June 8, 2021
    Inventors: Peiyan Cao, Yurun Liu
  • Patent number: 11020072
    Abstract: A detector assembly positionable to receive X-rays from an X-ray source within an imaging system is provided. The detector assembly includes multiple detector elements. The detector assembly also includes a temperature regulation system including multiple temperature regulation devices, wherein each temperature regulation device of the multiple temperature regulation devices is associated with a respective detector element of the multiple detector elements, and each temperature regulation device is configured to independently maintain a consistent temperature across a portion of a respective detector element.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: June 1, 2021
    Inventors: Mahesh Raman Narayanaswamy, Habib Vafi, Nicholas Ryan Konkle, Brian Joseph Graves
  • Patent number: 11020071
    Abstract: An X-ray computed tomography apparatus with a scanner function includes a vertical frame, a patient support arm provided below the vertical frame, a horizontal support arm extending horizontally from a top portion of the vertical frame, a rotary arm drive unit provided at an end of the horizontal support arm, a horizontal rotation arm provided horizontally below the rotary arm drive unit to rotate 360 degrees, a general CT imaging X-ray source provided at one end of the horizontal rotation arm, and an X-ray detector provided at the other end of the horizontal rotation arm to face the general CT imaging X-ray source. A micro CT imaging X-ray source is provided on the vertical frame, a rotary table for seating and rotating an object to be imaged is provided above the patient support arm, and the X-ray detector is composed of a common X-ray detector.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: June 1, 2021
    Assignee: Ray Co., Ltd.
    Inventors: Yong Jae Sa, Sang Chul Lee
  • Patent number: 11006905
    Abstract: The present disclosure relates to a data acquisition device and a configuration method. The device includes a channel, wherein the channel includes a data control panel and a plurality of detection components. At least one of the plurality of detection components is directly connected to the data control panel. The data control panel may be configured to identify the channel and send a configuration command to the plurality of detection components. The plurality of detection components may determine channel location numbers of the plurality of detection components based on the configuration command and send the channel location numbers to the data control panel. The data control panel may determine identification numbers for the plurality of detection components based on the channel location numbers and allocate the identification numbers to the plurality of detection components.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: May 18, 2021
    Inventor: Longzi Yang
  • Patent number: 10996352
    Abstract: An imaging radiation detection system, useful in detecting and localizing radioactive materials, may include a large number of particle detectors stacked in a two-dimensional array. The array may include protruding detectors interleaved with recessed detectors, in which each detector is oriented in a different direction. The array may have a checkerboard-type arrangement of protruding and recessed detectors. Detection data from the recessed detectors may include a radiographic image indicating the distribution of radioactive sources in view. Embodiments with high detection efficiency and large field of view can rapidly detect and localize even well-shielded threat sources at substantial distances.
    Type: Grant
    Filed: April 28, 2019
    Date of Patent: May 4, 2021
    Inventor: David Edward Newman
  • Patent number: 10980506
    Abstract: An image signal processing system (ISP) comprising an input interface (IN) for receiving photon counting projection data acquired by an X-ray imaging apparatus (IA) having a photon counting detector (D). A calibration data memory (CMEM) of the system holds calibration data. The calibration data encodes photon counting data versus path lengths curves for different energy thresholds of i) said detector (D) or ii) of a different detector. At least one of said curves is not one-to-one. A path length convertor (PLC) of the system converts an entry in said photon counting projection data into an associated path length based on said calibration data.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: April 20, 2021
    Inventors: Ewald Roessl, Roger Steadman, Christoph Herrmann, Roland Proksa
  • Patent number: 10973484
    Abstract: A method and device for acquiring a radiological image of at least part of a patient placed in a gantry. The method includes emitting radiation from a source that passes through the at least part of the patient and receiving the radiation at a detector. In one embodiment the detector may include a single flat panel sensor having a radiation sensitive surface and operable in at least a flat panel mode and a linear sensor mode. The method also rotating the source and the detector around at least a part of the patient and moving the detector along guides of a panel motion system along an axis perpendicular to the central axis of propagation. Also, the method includes translating the source and the detector in a direction of movement substantially perpendicular to the central axis of propagation.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: April 13, 2021
    Assignee: Epica International, Inc.
    Inventors: Gregory William Stoutenburgh, Damiano Fortuna, Leonardo Manetti
  • Patent number: 10978502
    Abstract: The present invention relates to an image sensor. More in particular, the present invention relates to an image sensor that comprises dose sensing pixels to sense an incident dose of photons. Such dose sensing can be used to trigger an image capturing process. A dose sensing pixel will act as a dose sensing pixel in a dose sensing mode of the sensor in dependence of a signal on a dose select line. The invention proposes a dose select line connecting unit for connecting dose select lines of a first stitching block among adjacent stitching blocks to a respective dose select line of a second stitching block among adjacent stitching blocks to prevent multiple dose sensing pixels in the same column of the matrix of pixels from being selected in the dose sensing mode.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: April 13, 2021
    Assignee: TELEDYNE DALSA B.V.
    Inventors: W. J. de Haan, Daniel Verbugt
  • Patent number: 10964003
    Abstract: A reconstruction processing unit includes a filtering unit which applies a filter for correcting a motion blur attributable to a relative movement of an image pickup system and an object to a transmission image when performing an operation of back-projecting a pixel on the transmission image to a cell on a reconstructed image. A filter that the filtering unit uses when a pixel on a first transmission image is back-projected to a first cell on the reconstructed image is different from a filter that the filtering unit uses when the pixel on the first transmission image is back-projected to a second cell existing at coordinates that differ from those of the first cell.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: March 30, 2021
    Assignee: OMRON Corporation
    Inventors: Yuki Nishina, Yoshinori Konishi
  • Patent number: 10945696
    Abstract: In a method, a topogram of an examination volume is received via an interface. A water equivalent diameter (abbreviated to WED) of a slice plane of the examination volume is then determined, via a computer unit, based on the topogram. Thereafter, via the computer unit, a noise level is determined based on the WED, the noise level being an upper threshold value for noise of a CT image dataset. Finally, via the computer unit, a reference dose parameter is determined, based on the noise level determined and the WED, the reference dose parameter corresponding to a first x ray dose, absorbable in the slice plane during a recording of a first CT image dataset of the examination volume upon noise of the first CT image dataset corresponding to the noise level determined.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: March 16, 2021
    Inventor: Karlheinz Dorn
  • Patent number: 10948536
    Abstract: The invention is a truth table-based failure isolation matrix in an Automated Test Equipment (ATE) environment to enable the mapping of measured results and/or test outcomes to probable causes of failure (PCOF). The failure isolation matrix is hierarchical in that it applies to both individual tests as well as groups of tests. For each level in the hierarchy, columns represent individual outcomes verified against expected results to produce a resultant outcome and rows represent possible combinations of measurement outcomes or outcome vectors. For groups of tests, the measurement results represent the combined results of the individual tests within the test group. The resultant matrix is a pattern of vectors that can be pattern matched against prior history of result patterns to further improve the accuracy and narrow the scope of PCOF.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: March 16, 2021
    Assignee: Pioneering Decisive Solutions, Inc.
    Inventor: William I. Birurakis
  • Patent number: 10944016
    Abstract: An optical detection unit includes a first wiring substrate that has a first main surface, a plurality of optical detection chips that each have a light receiving surface and a rear surface on a side opposite to the light receiving surface and are two-dimensionally arranged on the first main surface, a first bump electrode that electrically connects the optical detection chip to the first wiring substrate, a light transmitting portion that is provided on the light receiving surface, and a light shielding portion that has light reflection properties or light absorption properties. The optical detection chip includes a Geiger-mode APD and is mounted on the first wiring substrate by the first bump electrode in a state in which the rear surface faces the first main surface.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: March 9, 2021
    Inventors: Ryutaro Tsuchiya, Terumasa Nagano, Yuta Tsuji, Go Kawai, Yuki Okuwa
  • Patent number: 10932737
    Abstract: A hybrid imaging system is disclosed including an arcuate arm defining a first and a second end the arcuate arm including a first detector assembly for 2D x-ray imaging of a patient and a second detector assembly for CT imaging of the patient, wherein the imaging system includes an internal drive mechanism for rotating the arcuate arm (e.g. translating the arcuate arm along an arcuate path) around the patient.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: March 2, 2021
    Assignee: Dedicated2Imaging, LLC
    Inventors: Eric M. Bailey, Andrew Tybinkowski
  • Patent number: 10935691
    Abstract: The present disclosure relates to the technical field of CT detection, and in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure comprises a radioactive source device, a detection device, a rotation monitoring device and an imaging device, wherein the detection device obtains detection data at a frequency that is N times a beam emitting frequency of the radioactive source device; the rotation monitoring device detects a rotation angle of the detection device and transmits a signal to the imaging device each time the detection device rotates by a preset angle; the imaging device determines a rotational position of the detection device each time the radioactive source device emits a beam according to the signal transmitted by the rotation monitoring device and the detection data of the detection device.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: March 2, 2021
    Inventors: Kejun Kang, Jianmin Li, Xiulin Ni, Yulan Li, Yuanjing Li, Zhiqiang Chen, Li Zhang, Liang Li, Xiang Zou, Weifeng Yu, Hejun Zhou, Chunguang Zong
  • Patent number: 10908301
    Abstract: A radiation monitor according to the present invention includes: a radiation sensing unit which includes phosphors emitting a photon with respect to an incident radiation; and a photon sending unit which sends the photon emitted from the phosphors of the radiation sensing unit, wherein the phosphors form a multilayer structure including a first phosphor and a second phosphor, and a photon absorbing layer absorbing a photon emitted from a phosphor is provided between the first phosphor and the second phosphor.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: February 2, 2021
    Assignee: HITACHI, LTD.
    Inventors: Shuichi Hatakeyama, Takahiro Tadokoro, Yuichiro Ueno, Yasushi Nagumo, Katsunori Ueno, Kouichi Okada
  • Patent number: 10898159
    Abstract: The present disclosure relates to determining the position of an X-ray focal spot in real time during an imaging process and using the focal spot position to ensure alignment of the focal spot and high-aspect detector elements or to correct for focal spot misalignment, thereby mitigating image artifacts. For example, the focal spot position may be monitored and may be adjusted in real-time using electromagnetic electron beam steering during a scan. Alternatively, previously determined functional relationships between focal spot position and measured data may be applied to address or correct for focal spot misalignment in the acquired data.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: January 26, 2021
    Inventors: Peter Michael Edic, Biju Jacob
  • Patent number: 10891764
    Abstract: A control unit of a console acquires a plurality of projection images obtained by irradiating a subject disposed between a radiation source and a radiation detector with radiation emitted from the radiation source at different irradiation angles and capturing the radiation with the radiation detector at each of the irradiation angles and decomposes each of the plurality of projection images into a plurality of first projection images with a low-frequency component lower than a predetermined spatial frequency and a plurality of second projection images with a high-frequency component higher than the predetermined spatial frequency. The control unit generates a pseudo two-dimensional image using a plurality of first tomographic images and a plurality of second tomographic images.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: January 12, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Wataru Fukuda
  • Patent number: 10891715
    Abstract: A method for generating a super-resolved high-resolution image based on a low-resolution image is provided. The method includes receiving a low-resolution image having a first image size from a camera, and determining an interpolated image of the low-resolution image. The interpolated image has a second image size being greater than the first image size. The method also includes determining a high-resolution super-resolved image based on the interpolated image and model data. The model data is stored on memory hardware. The method also includes displaying, on a user interface, the high-resolution super-resolved image.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: January 12, 2021
    Assignee: Continental Automotive Systems, Inc.
    Inventor: Dalong Li
  • Patent number: 10881367
    Abstract: Methods, devices, systems and apparatus for arranging detector sub-modules in a medical device are provided. In one aspect, a detector includes a housing and a plurality of detector modules arranged in parallel along a direction on the housing and configured to detect rays emitted from a radiation source and attenuated by a subject. Each of the plurality of detector modules includes a support extending in the direction and a plurality of detector sub-modules arranged on the support along the direction. A top surface of each of the plurality of detector sub-modules is tangent to a respective spherical surface of a corresponding target sphere of at least two target spheres having different radiuses, and a respective sphere center of each of the at least two target spheres is substantially overlapped with a focal spot of the radiation source.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: January 5, 2021
    Assignee: Neusoft Medical Systems Co., Ltd.
    Inventors: Jun Yu, Shuangxue Li, Shanshan Lou
  • Patent number: 10869646
    Abstract: An apparatus and method are described using a forward model to correct pulse pileup in spectrally resolved X-ray projection data from photon-counting detectors (PCDs). To calibrate the forward model, which represents each order of pileup using a respective pileup response matrix (PRM), an optimization search determines the elements of the PRMs that optimize an objective function measuring agreement between the spectra of recorded counts affected by pulse pileup and the estimated counts generated using forward model of pulse pileup. The spectrum of the recorded counts in the projection data is corrected using the calibrated forward model, by determining an argument value that optimizes the objective function, the argument being either a corrected X-ray spectrum or the projection lengths of a material decomposition. Images for material components of the material decomposition are then reconstructed using the corrected projection data.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: December 22, 2020
    Inventors: Jian Zhou, Zhou Yu, Yan Liu
  • Patent number: 10854327
    Abstract: This diagnostic imaging system is configured to create report data including a diagnostic image and an analysis result as image data and create sample data including a sampling position and an analysis result as document data.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: December 1, 2020
    Assignee: Shimadzu Corporation
    Inventors: Shunsuke Kajiki, Daisuke Notohara
  • Patent number: 10837925
    Abstract: An X-ray detector monitoring device capable of detecting a time when an X-ray detector is disabled due to a slow leak is provided. The X-ray detector monitoring device is provided with an X-ray detection element 32 for detecting X-ray intensity, an X-ray detector 30 having a vacuum insulation container 33 in which an X-ray introduction window 31 is formed, a cooling means 60 for cooling the X-ray detection element 32, a detection element temperature sensor 81 mounted on the X-ray detection element 32 to output detection element temperature information Tt by detecting a temperature of an X-ray detection element 32, and a control unit 40 and 70 configured to calculate an output value for controlling the cooling means 60 to output the output value to the cooling means 60 so that the detection element temperature information Tt becomes a preset temperature TS. The control unit 40 and 70 is configured to detect a vacuum state of the vacuum insulation container 33 based on the output value.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: November 17, 2020
    Assignee: Shimadzu Corporation
    Inventors: Keijiro Suzuki, Takao Marui