Imaging Patents (Class 378/62)
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Patent number: 11364006Abstract: A method and system is disclosed for acquiring image data of a subject. The image data can be collected with an imaging system in a selected manner and/or motion. More than one projection may be combined to generate and create a selected view of the subject.Type: GrantFiled: January 4, 2021Date of Patent: June 21, 2022Assignee: Medtronic Navigation, Inc.Inventors: Patrick A. Helm, Rasika A. Parkar, Robert J. Reddy, Kyo C. Jin, Seunghoon Nam, Andre Souza, Xiaodong Tao, David A. Garlow, John R. Martin
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Patent number: 11361478Abstract: For partial volume correction, the partial volume effect is simulated using patient-specific segmentation. An organ or other object of the patient is segmented using anatomical imaging. For simulation, the locations of the patient-specific object or objects are sub-divided, creating artificial boundaries in the object. A test activity is assigned to each sub-division and forward projected. The difference of the forward projected activity to the test activity provides a location-by-location partial volume correction map. This correction map is used in reconstruction from the measured emissions, resulting in more accurate activity estimation with less partial volume effect.Type: GrantFiled: May 14, 2020Date of Patent: June 14, 2022Assignee: Siemens Medical Solutions USA, Inc.Inventors: Alexander Hans Vija, Michal Cachovan
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Patent number: 11357475Abstract: With a device and an associated method, an ultrasound unit is coupled with a coupling unit to an existing x-ray unit. The ultrasound unit is guided with the aid of controllable elements of a positioning unit of the x-ray unit on a patient for an ultrasound examination. In this manner X-ray recordings and ultrasound recordings of an object can be produced.Type: GrantFiled: April 26, 2018Date of Patent: June 14, 2022Assignee: Siemens Healthcare GmbHInventor: Andreas Fieselmann
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Patent number: 11360034Abstract: A radiation imaging apparatus is provided. The apparatus includes an imaging unit including pixels and a control unit. Each of the pixels includes a conversion unit and a sample/hold circuit. The control unit causes the imaging unit to perform first imaging and second imaging after the first imaging to generate one energy subtraction image, and controls a timing of causing the sample/hold circuit in the first imaging to sample a first image signal obtained by the first imaging and a timing of causing the sample/hold circuit in the second imaging to sample a second image signal obtained by the second imaging in accordance with radiation irradiation conditions set in advance so as to reduce a difference between an amount of noise contained in the first image signal and an amount of noise contained in the second image signal.Type: GrantFiled: January 17, 2020Date of Patent: June 14, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Sota Torii, Kosuke Terui, Akira Tsukuda, Atsushi Iwashita
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Patent number: 11350903Abstract: There is provided a radiation detection system for a radiotherapy device comprising: a plurality of detectors moveable to position each detector in turn in an imaging position to detect radiation.Type: GrantFiled: March 26, 2019Date of Patent: June 7, 2022Assignee: Elekta LimitedInventor: Duncan Bourne
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Patent number: 11344265Abstract: To appropriately perform long-sized imaging even in the case of performing long-sized imaging using different types of radiation detectors, a radiography system for generating a long-sized image by combining a plurality of items of image data obtained from a plurality of radiation detectors 120, 122, and 124 includes a determination unit 202, which determines whether or not long-sized imaging is possible on the basis of identification information and position information of the plurality of radiation detectors 120, 122, and 124.Type: GrantFiled: July 1, 2019Date of Patent: May 31, 2022Assignee: Canon Kabushiki KaishaInventor: Daisuke Yamada
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Patent number: 11344269Abstract: A method is for monitoring a tissue removal taking place via an X-ray imaging system. The method includes acquiring first X-ray projection scan data, influenced by a contrast medium, of the breast tissue situated in an image field of the X-ray imaging system. The contrast medium-influenced first X-ray projection scan data is generated with X-ray photons having a photon energy above an absorption edge of the contrast medium used. A first image data set is then reconstructed based upon the acquired X-ray projection scan data. Finally, based upon the reconstructed first image data set, the method includes determining a current position of the lesion, in relation to a reference coordinate system.Type: GrantFiled: September 24, 2019Date of Patent: May 31, 2022Assignee: Siemens Healthcare GmbHInventors: Thomas Mertelmeier, Ramyar Biniazan
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Patent number: 11341762Abstract: The purpose of the present invention is to detect an object in images accurately by means of image recognition without using a special device for removing the influence of the parallax between a plurality of images. An image transformation unit (401) transforms a plurality of images acquired by an image acquisition unit (407). A reliability level calculation unit (402) calculates a level of reliability representing how small the misalignment between images is. A score calculation unit (405) calculates a total score taking into account both an object detection score based on a feature quantity calculated by a feature extraction unit (404), and the level of reliability calculated by the reliability level calculation unit (402). An object detection unit (406) detects an object in the images on the basis of the total score.Type: GrantFiled: May 29, 2018Date of Patent: May 24, 2022Assignee: NEC CORPORATIONInventors: Takashi Shibata, Azusa Sawada, Katsuhiko Takahashi
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Patent number: 11337663Abstract: Systems and method for performing X-ray computed tomography (CT) that can improve spectral separation and decrease motion artifacts without increasing radiation dose are provided. The systems and method can be used with either a kVp-switching source or a single-kVp source. When used with a kVp-switching source, an absorption grating and a filter grating can be disposed between the X-ray source and the sample to be imaged. Relative motion of the filter and absorption gratings can by synchronized to the kVp switching frequency of the X-ray source. When used with a single-kVp source, a combination of absorption and filter gratings can be used and can be driven in an oscillation movement that is optimized for a single-kVp X-ray source. With a single-kVp source, the absorption grating can also be omitted and the filter grating can remain stationary.Type: GrantFiled: April 6, 2017Date of Patent: May 24, 2022Assignee: Rensselaer Polytechnic InstituteInventors: Ge Wang, Wenxiang Cong, Yan Xi
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Patent number: 11331068Abstract: In an X-ray inspection, a detection unit with a detector is provided. The detection unit detects transmitted amounts of the X-rays generated by an X-ray generator and transmitted through the object in each of n-number X-ray energy bins (n is a positive integer of 2 or more) which are set in advance to the X-rays, and outputs detection signals corresponding to the transmitted amounts. An information acquisition unit acquires, based on the detection signal, information showing a thickness t of the object and an average linear attenuation coefficient ? in a transmission direction of fluxes of the X-rays, in each of the energy bins. A pixel data calculation unit calculates, based on the acquired information, pixel data composed of pixel values each obtained by multiplying addition information by the thickness t. Addition information is obtained by mutual addition of the average linear attenuation coefficients ? in the respective energy bins.Type: GrantFiled: June 19, 2018Date of Patent: May 17, 2022Assignee: JOB CorporationInventors: Tsutomu Yamakawa, Shuichiro Yamamoto
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Patent number: 11311265Abstract: A radiographic imaging system includes a radiation emitter, an image generator and a hardware processor. The radiation emitter emits radiation. The image generator generates a dynamic image composed of a plurality of frames according to received radiation The hardware processor determines at a predetermined timing whether at least one imaging allowing condition is satisfied. In response to determining that the at least one imaging allowing condition is satisfied, the hardware processor allows at least one of the radiation emitter and the image generator to operate.Type: GrantFiled: September 17, 2020Date of Patent: April 26, 2022Assignee: KONICA MINOLTA, INC.Inventor: Taketoh Muraoka
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Patent number: 11311260Abstract: In this X-ray phase imaging apparatus, at least one of a plurality of gratings is composed of a plurality of grating portions arranged along a third direction perpendicular to a first direction along which a subject or an imaging system is moved by a moving mechanism and a second direction along which an X-ray source, a detection unit, and a plurality of grating portions are arranged. The plurality of grating portions are arranged such that adjacent grating portions overlap each other when viewed in the first direction.Type: GrantFiled: March 30, 2020Date of Patent: April 26, 2022Assignee: Shimadzu CorporationInventors: Satoshi Sano, Koichi Tanabe, Yukihisa Wada, Satoshi Tokuda, Akira Horiba, Naoki Morimoto
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Patent number: 11307325Abstract: The present specification discloses a covert mobile inspection vehicle with a backscatter X-ray scanning system that has an X-ray source and detectors for obtaining a radiographic image of an object outside the vehicle. The systems preferably include at least one sensor for determining a distance from at least one of the detectors to points on the surface of the object being scanned, a processor for processing the obtained radiographic image by using the determined distance of the object to obtain an atomic number of each material contained in the object, and one or more sensors to obtain surveillance data from a predefined area surrounding the vehicle.Type: GrantFiled: June 1, 2020Date of Patent: April 19, 2022Assignee: Rapiscan Systems, inc.Inventor: Edward James Morton
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Patent number: 11300444Abstract: A photoelectric detection circuit and a photoelectric detector are provided. The photoelectric detection circuit includes a first photoelectric sensing element and a second photoelectric sensing element, and an electrical characteristic of the first photoelectric sensing element is substantially identical to an electrical characteristic of the second photoelectric sensing element; the first photoelectric sensing element outputs a first sensed electrical signal, and the second photoelectric sensing element outputs a second sensed electrical signal; a polarity of the first sensed electrical signal is opposite to a polarity of the second sensed electrical signal, and an amplitude value of the first sensed electrical signal is substantially identical to an amplitude value of the second sensed electrical signal.Type: GrantFiled: December 18, 2017Date of Patent: April 12, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yongming Shi, Zhanjie Ma, Hui Tian, Chun Wang
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Patent number: 11294078Abstract: A radiation imaging apparatus comprises at least one first detection element including a first conversion element configured to convert radiation into an electrical signal and a first switch configured to connect an output from the first conversion element to a first signal line, at least one second detection element including a second conversion element configured to convert radiation into an electrical signal and a second switch configured to connect an output from the second conversion element to a second signal line, a readout unit configured to read out signals appearing on the first signal line and the second signal line, and a signal processing circuit configured to process a signal read out from the readout unit. A sensitivity of the first conversion element for the radiation is set to be different from a sensitivity of the second conversion element for the radiation.Type: GrantFiled: August 10, 2020Date of Patent: April 5, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Ryosuke Miura, Minoru Watanabe, Kentaro Fujiyoshi
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Patent number: 11276718Abstract: The present disclosure relates to an image sensor structure and a manufacturing method thereof. A detection structure layer and a blind pixel structure layer are used. The detection structure layer and the blind pixel structure layer are effectively combined and further formed by ion implantation. Thus, the space ratio of a single pixel is reduced, the integration and device sensitivity are improved, and the blind pixel array and the pixel array are also in the same environment, thereby further improving the detection sensitivity and reducing the detection error.Type: GrantFiled: June 30, 2017Date of Patent: March 15, 2022Assignee: SHANGHAI IC R&D CENTER CO., LTDInventor: Xiaoxu Kang
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Patent number: 11262473Abstract: 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.Type: GrantFiled: June 25, 2020Date of Patent: March 1, 2022Assignee: TEK84 INC.Inventor: Steven Winn Smith
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Patent number: 11250968Abstract: An X-ray system for providing a converging X-rays comprises: (a) an X-ray source having an optical axis thereof; and an X-ray lens comprising at least one ring having a Bragg reflecting surface formed by a plurality of single-crystal tiles. Each tile individually comprises an adjusting arrangement enabling a tridimensional individual displacement thereof in angular and translational manner.Type: GrantFiled: July 16, 2020Date of Patent: February 15, 2022Assignee: Convergent R.N.R. Ltd.Inventors: Aharon Bar-David, Shirly Borukhin, Michael Kleckner, Zeev Harel
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Patent number: 11241207Abstract: This disclosure generally relates to systems, methods, and devices for performing high-resolution computer tomography (CT) scans providing highly detailed images of particular regions using whole body clinical CT scanners while maintaining high imaging speeds and low dose levels. In particular, the disclosed systems use flat panel detectors in conjunction with common CT detectors to quickly produce high-resolution CT images.Type: GrantFiled: August 14, 2018Date of Patent: February 8, 2022Assignee: The United States of America, as represented by the Secretary, Department of Health and Human ServicesInventor: Han Wen
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Patent number: 11231378Abstract: The present invention relates to acquiring reference scan data for X-ray phase-contrast imaging and/or X-ray dark-field imaging. Therefore an X-ray detector (26) is arranged opposite an X-ray source (12) across an examination region (30) with a grating arrangement (18) arranged between the X-ray source (12) and the X-ray detector (26). During an imaging operation without an object in the examination region (30) the grating arrangement (18) is moved in a scanning motion to a number of different positions (a) relative to the X-ray detector (26) whilst the X-ray detector (26) remains stationary relative to the examination region (30) such that in the scanning motion a series of fringe patterns is detected by the X-ray detector (26). The scanning motion is repeated for a different series of fringe patterns. This allows acquiring reference scan data required for calibration of an X-ray imaging device (10??) with less scanning motions.Type: GrantFiled: September 21, 2018Date of Patent: January 25, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Andriy Yaroshenko, Thomas Koehler, Peter Benjamin Theodor Nöel, Fabio De Marco, Lukas Benedict Gromann, Konstantin Willer
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Patent number: 11231787Abstract: A system and method for displaying images of internal anatomy includes an image processing device configured to provide high resolution images of the surgical field from low resolution scans during the procedure. The image processing device digitally manipulates a previously-obtained high resolution baseline image to produce many representative images based on permutations of movement of the baseline image. During the procedure a representative image is selected having an acceptable degree of correlation to the new low resolution image. The selected representative image and the new image are merged to provide a higher resolution image of the surgical field. The image processing device is also configured to provide interactive movement of the displayed image based on movement of the imaging device, and to permit placement of annotations on the displayed image to facilitate communication between the radiology technician and the surgeon.Type: GrantFiled: April 23, 2020Date of Patent: January 25, 2022Assignee: NuVasive, Inc.Inventors: Robert E. Isaacs, Samuel Morris Johnston, David Alexander Skwerer, Randall Graham Campbell
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Patent number: 11227700Abstract: Embodiments of the present disclosure provide a method and an apparatus of correcting a collimator, which may correct a position of a collimator of a gamma knife apparatus. The method includes: separately obtaining a projection image of rays sequentially passing through collimation holes and an isocenter plane in the collimator in cases where the collimator moves to M positions; determining a target position with a highest degree of alignment of the collimator from the M positions according to obtained projection images of rays; recording position parameters corresponding to the target position, so as to control the collimator to move to the target position in a case where the a gamma knife apparatus is used for treatment.Type: GrantFiled: August 28, 2020Date of Patent: January 18, 2022Inventors: Jiuliang Li, Hao Yan, Jinsheng Li, Tianchang Gou, Chun Luo
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Patent number: 11224398Abstract: A wireless radiation system comprising: a generator comprising a first wireless communication module; and a radiation detector comprising a digital screen and a second wireless communication module, wherein said wireless radiation detector is configured to display a captured radiation image on said digital screen and to transmit the captured radiation image, using said second wireless communication module, to a server, wherein said first and second wireless communication modules are configured to wirelessly synchronize a radiation generation by said radiation generator and an exposure to the radiation by said radiation detector.Type: GrantFiled: January 26, 2020Date of Patent: January 18, 2022Assignee: CMT MEDICAL TECHNOLOGIES LTD.Inventors: Beatriz Matesanz Garcia, Ilan Sivan
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Patent number: 11221303Abstract: A radiation capturing system includes the following. A radiation source, a plurality of gratings, and a radiation detector, are provided aligned in a radiation irradiating axis direction. A Talbot interferometer or a Talbot-Lau interferometer captures a moire fringe image for generating a reconstructed image. A low visibility capturing unit performs capturing of the moire fringe image with visibility of a moire fringe reduced more than in capturing of the moire fringe image for generating the reconstructed image. A generating unit generates an absorptive image based on the moire fringe image captured by the low visibility capturing unit.Type: GrantFiled: March 23, 2017Date of Patent: January 11, 2022Assignee: KONICA MINOLTA, INC.Inventor: Chiho Makifuchi
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Patent number: 11219114Abstract: A radiation generation control device includes an acquirer, a first connector, a second connector and a controller. The acquirer acquires a first signal which instructs emission of radiation. The first connector inputs a second signal which indicates a driving state of a radiography apparatus that generates a radiographic image. The second connector connects with a radiation generation apparatus that generates radiation. The controller makes the second connector repeatedly output a third signal which instructs emission of radiation with a predetermined period based on the acquired first signal and the input second signal.Type: GrantFiled: September 18, 2019Date of Patent: January 4, 2022Assignee: KONICA MINOLTA, INC.Inventors: Masahiro Kuwata, Koutarou Kanamori, Nobuyuki Miyake, Kosuke Fukazu
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Patent number: 11213271Abstract: A radiation imaging system, including: a radiation imaging unit configured to perform radiation imaging and generate radiation image data based on detected radiation; and an image processing unit configured to perform first image processing on the radiation image data to generate a first image and capable of transmitting the first image to an information terminal, wherein the radiation imaging unit is configured to subject the radiation image data to second image processing to generate a second image and transmit the second image to the information terminal.Type: GrantFiled: August 1, 2019Date of Patent: January 4, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Hirohide Tachikawa
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Patent number: 11210809Abstract: An image processing apparatus obtains a plurality of radiation images generated by causing a plurality of radiation detectors to detect radiation with which a subject is irradiated, and generates an elongated image by synthesizing the plurality of radiation images. The image processing apparatus estimates a direction of the subject in each of the plurality of radiation images, and determines a direction of the subject in the elongated image based on a direction estimation result on each of the plurality of radiation images.Type: GrantFiled: June 16, 2020Date of Patent: December 28, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Tomohiko Matsuura
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Patent number: 11205241Abstract: A method and system for drawing and rendering a graphic in real-time in a layered manner are provided. Adjacent application frames spaced with a time period are extracted, a scene change rate is calculated, and whether the scene change rate exceeds a preset change rate threshold is determined. If the scene change rate does not exceed the preset change rate threshold, graphic elements are grouped to a same graphic layer. If the scene change rate exceeds the preset change rate threshold, M application frames chronologically located between the adjacent application frames are extracted. Each application frame is divided into N regions, and a scene change rate of adjacent application frames is calculated for each region. An average scene change rate for each region is calculated, a layering operation is performed based on the average scene change rate, and graphic layers are drew and rendered separately.Type: GrantFiled: October 26, 2018Date of Patent: December 21, 2021Assignee: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.Inventors: Suhong Lin, Meng Wang
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Patent number: 11202614Abstract: An X-ray imaging apparatus and control method thereof precisely designates an imaging region and reduces user fatigue by designating a segmentation imaging region using an image of a target object captured by a camera and automatically controlling an X-ray generator according to the designated segmentation imaging region. The X-ray imaging apparatus includes an X-ray generator to perform X-ray imaging of a target object by generating and irradiating X-rays, an image capturer to capture an image of the target object, an image display to display the image captured by the image capturer, an input part to receive designation of a region for which segmentation imaging is to be performed on the image displayed on the image display, and a controller to control the X-ray generator to perform segmentation imaging with respect to the designated region.Type: GrantFiled: July 11, 2019Date of Patent: December 21, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Duhgoon Lee, Phill Gu Jung, Myung Jin Chung
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Patent number: 11185300Abstract: A portable x-ray device for producing x-rays may include a housing; an exposure device enclosed by the housing to generate x-rays; a slide switch connected to the exposure device being movable between a first position and a second position; a first trigger to activate the exposure device when the slide switch is in the first position being positioned on a first side of the housing; a second trigger to activate the exposure device when the slide switch is in the second position being positioned on a second opposed side of the housing.Type: GrantFiled: September 2, 2017Date of Patent: November 30, 2021Inventors: Seung Bum Ryu, Sr., Kun Sang Ryu, Duck Chul Min, Kwang Ho Ryu
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Patent number: 11185301Abstract: A radiation imaging apparatus is provided. The apparatus comprises a detection unit configured to generate an image signal according to radiation emitted by a radiation source, an image processing unit, and a control unit. The control unit performs first imaging and second imaging performed after the first imaging using radiations of different energies, the image processing unit generates an energy subtraction image using a first image signal generated by the detection unit in the first imaging and a second image signal generated by the detection unit in the second imaging, and the second imaging is performed under a radiation irradiation condition according to a noise amount included in the first image signal.Type: GrantFiled: January 22, 2020Date of Patent: November 30, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Sota Torii, Atsushi Iwashita, Kosuke Terui, Akira Tsukuda
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Patent number: 11189456Abstract: A sample may be inspected by making particles traverse the sample. The particles that have traversed the sample hit a detector one-by-one. In response thereto, the detector provides a sequence of respective detection outputs. The sequence of respective detection outputs is processed so as to identify respective locations where respective incident particles have hit the detector. An image is generated on the basis of the respective locations that have been identified. In order to determine a location where an incident particle has hit the detector, an evaluation is made with regard to pre-established respective associations between, on the one hand, respective locations where incident particles have hit the detector and, on the other hand, respective detection outputs.Type: GrantFiled: February 13, 2019Date of Patent: November 30, 2021Assignee: Universiteit MaastrichtInventors: Paul Van Schayck, Raimond Ravelli
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Patent number: 11179131Abstract: In this radiation fluoroscopic imaging apparatus, an image processing unit is configured to generate a first image by performing first image processing that clarifies a blood vessel as an imaging target when capturing a plurality of contrast agent images and generate a plurality of second images used to generate a differential long image by performing second image processing.Type: GrantFiled: March 3, 2020Date of Patent: November 23, 2021Assignee: Shimadzu CorporationInventors: David Thibault Pelletier, Naoki Hasegawa, Keiichi Tanno, Takaya Yamamoto
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Patent number: 11181488Abstract: A computed tomography (CT) detector array (120) includes a monolithic scintillator (124). The monolithic scintillator includes at least a first scintillator region (202), a second scintillator region (206), and an optically reflective barrier (210) therebetween. The detector array is configured to detect X-ray radiation traversing an examination region and impinging the monolithic scintillator and generate first projection data indicative of an energy of x-ray radiation absorbed by the first scintillator region and second projection data indicative of an energy of x-ray radiation traversing the first scintillator and absorbed by the second scintillator region.Type: GrantFiled: August 20, 2018Date of Patent: November 23, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Roger Steadman Booker, Walter Ruetten
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Patent number: 11173604Abstract: The disclosure relates to a method for operating a robot, a data memory with a corresponding program code, the corresponding robot, and a corresponding robot system. Different coordinate system and their relationships to one another are used to position a tool in a target pose. A stationary reference coordinate system originating at a robot foot of the robot and a target coordinate system originating at the tool are specified. Herein, a z-axis of the target coordinate system corresponds to a specified axis of the tool. The orientations of an x-axis and a y-axis of the target coordinate system are calculated by a first cross product of the orientation of the specified axis and a direction vector, that is not parallel thereto, of coordinate axis of the reference coordinate system and by a second cross product of a result of the first cross product and the orientation of the specified axis.Type: GrantFiled: June 12, 2019Date of Patent: November 16, 2021Assignee: Siemens Healthcare GmbHInventors: Holger Mönnich, Rafik Mebarki
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Patent number: 11173323Abstract: A computer-implemented method evaluates a protocol for radiation therapy for a target volume of a patient. The method uses a computer system executing software instructions establishing computer processes. The computer processes receiving and storing data defining the protocol and characterizing the target volume. The computer processes parse the data to extract parameters characterizing the protocol. The computer processes apply the extracted parameters and the target volume to a model that represents relationships among sub-processes and variables pertinent to execution of the protocol in a patient. The computer processes obtain from the model an evaluation of the protocol and providing the evaluation as an output.Type: GrantFiled: July 29, 2019Date of Patent: November 16, 2021Inventor: Reshma Munbodh
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Patent number: 11166692Abstract: An X-ray image diagnostic apparatus images a subject with X-rays without increasing the burden on a user, and includes an X-ray image diagnostic apparatus 1, a table 4 on which a subject is placed on the top-surface thereof; an X-ray tube 5 disposed beneath the back side of the table and which emits X-rays; a detector 6 disposed above the table 4 so as to face the X-ray tube 5 and detecting the X-rays emitted from the X-ray tube 5 and penetrating the subject on the table 4; an X-ray tube moving mechanism 12 that moves the X-ray tube 5 in a direction approaching the table 4 and moving away therefrom; a detector moving mechanism 13 that moves the detector 6 in a direction approaching the table 4 and moving away therefrom; and a control unit 14 that controls a distance between the X-ray tube 5 and the detector 6 by controlling action of the X-ray tube moving mechanism 12 and the detector moving mechanism 13.Type: GrantFiled: November 20, 2019Date of Patent: November 9, 2021Assignee: SHIMADZU CORPORATIONInventors: Keita Okutani, Masahiro Tanaka
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Patent number: 11156725Abstract: The present invention relates to a detector arrangement for an X-ray phase contrast system (5), the detector arrangement (1) comprising: a scintillator (11); an optical grating (12); and a detector (13); wherein the optical grating (12) is arranged between the scintillator (11) and the detector (13); wherein the scintillator (11) converts X-ray radiation (2) into optical radiation (3); wherein the optical grating (12) is configured to be an analyzer grating being adapted to a phase-grating (21) of an X-ray phase contrast system (5); wherein the optical path between the optical grating (12) and the scintillator (11) is free of focusing elements for optical radiation. The present invention further relates to a method (100) for performing X-ray phase contrast imaging with a detector arrangement (1) mentioned above. The invention avoids the use of an X-ray absorption grating as G2 grating in an X-ray phase contrast interferometer system.Type: GrantFiled: March 27, 2018Date of Patent: October 26, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventor: Roland Proksa
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Patent number: 11150560Abstract: Disclosed is a system configured to project a beam of radiation onto a target portion of a substrate within a lithographic apparatus. The system includes a radiation source. The radiation source includes a grating structure operable to suppress the zeroth order of reflected radiation for at least a first component wavelength. The grating structure has a periodic profile including regularly spaced structures providing three surface levels, such that radiation diffracted by the grating structure includes radiation of three phases which destructively interfere for at least the zeroth order of the reflected radiation for the first component wavelength. The grating structure is on a radiation collector within the source.Type: GrantFiled: May 22, 2020Date of Patent: October 19, 2021Assignee: ASML Netherlands B.V.Inventors: Marcus Adrianus Van De Kerkhof, Anton Bernhard Van Oosten, Hans Butler, Erik Roelof Loopstra, Marc Wilhelmus Maria Van Der Wijst, Koen Jacobus Johannes Maria Zaal
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Patent number: 11152184Abstract: X-ray transparent insulation can be sandwiched between an x-ray window and a ground plate. The x-ray transparent insulation can include aluminum nitride, boron nitride, or polyetherimide. The x-ray transparent insulation can include a curved side. The x-ray transparent insulation can be transparent to x-rays and resistant to x-ray damage, and can have high thermal conductivity. An x-ray window can have high thermal conductivity, high electrical conductivity, high melting point, low cost, and matched coefficient of thermal conductivity with the anode. The x-ray window can be made of tungsten. For consistent x-ray spot size and location, a focusing plate and a filament can be attached to a cathode with an open channel of the focusing plate aligned with a longitudinal dimension of the filament. Tabs of the focusing plate bordering the open channel can be bent to align with a location of the filament.Type: GrantFiled: July 23, 2020Date of Patent: October 19, 2021Assignee: Moxtek, Inc.Inventors: Todd S. Parker, Eric Miller
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Patent number: 11140763Abstract: An X-ray generation apparatus includes an X-ray generation unit, a storage container configured to store the X-ray generation unit, and an insulating component arranged between an inner surface of the storage container and at least a part of the X-ray generation unit. The insulating component includes a first insulating member and a second insulating member, the first insulating member includes a first portion having a first surface, and a second portion having a second surface, a step difference is formed by the first surface and the second surface, and the second portion has a thickness smaller than that of the first portion, an adhesive surface of the second insulating member and the second surface of the first insulating member are connected by an adhesive material, and a flatness of the second surface is better than a flatness of the first surface.Type: GrantFiled: March 8, 2021Date of Patent: October 5, 2021Assignee: CANON ANELVA CORPORATIONInventor: Junya Kawase
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Patent number: 11125702Abstract: An image processing apparatus that processes an image obtained from an imaging sensor having a plurality of pixels arranged in a matrix pattern, the pixels including a first pixel group for obtaining a pixel value corresponding to a radiation dose and a second pixel group for obtaining an offset value even with irradiation with radiation, performs offset correction of a radiation image obtained from the plurality of pixels by an imaging operation with irradiation with radiation based on a dark image obtained from the plurality of pixels by an imaging operation without irradiation with radiation, calculates a statistic value of pixel values obtained from the second pixel group of the corrected radiation image, and corrects pixel values obtained from the first pixel group, which have been offset-corrected, based on a temporal variation in the statistic value.Type: GrantFiled: March 5, 2020Date of Patent: September 21, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Shinsuke Hayashida, Takashi Takasaki
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Patent number: 11116464Abstract: An X-ray diagnostic apparatus according to an embodiment includes processing circuitry configured to acquire a plurality of X-ray images over time based on X-rays having passed through a subject injected with a contrast agent, to calculate a blood vessel region corresponding to an inflow path of the contrast agent leading to a predetermined position in the blood vessel region, based on a temporal transition of signal intensities of the contrast agent in the blood vessel region represented in the X-ray images, and to perform control to display the blood vessel region corresponding to the inflow path in a display mode that is different from that of a blood vessel region other than the inflow path on a display.Type: GrantFiled: October 21, 2016Date of Patent: September 14, 2021Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Mika Takaya, Shingo Abe, Ko Fuchigami, Ryoichi Nagae, Takuya Sakaguchi
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Patent number: 11105935Abstract: An image sensor comprises a plurality of pixels, each pixel including: a light-receiving element that outputs an output voltage that varies in response to a photon entering; at least one comparator that compares the output voltage with a plurality of mutually-different threshold voltages and outputs a single signal each time the output voltage varies so as to exceed either of the threshold voltages; and at least one counter that counts a number of signals output by the comparator upon comparing the output voltage with the plurality of threshold voltages and outputs a count value, for each of the threshold voltages.Type: GrantFiled: July 23, 2019Date of Patent: August 31, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Norio Negishi
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Patent number: 11092701Abstract: A radiation detector assembly is provided that includes a semiconductor detector, plural pixelated anodes disposed on a surface of the semiconductor detector, and at least one processor. Each pixelated anode is configured to generate a mixed primary signal responsive to reception of a photon by at least one surrounding anode of the pixelated anode and to generate a mixed secondary signal responsive to reception of a photon by the pixelated anode. The at least one processor is operably coupled to the pixelated anodes, and is configured to: acquire the mixed primary signal from a first pixelated anode; acquire the mixed secondary signal from a second pixelated anode; and count an event in the second pixelated anode responsive to acquiring the mixed primary signal from the first pixelated anode and the mixed secondary signal from the second pixelated anode.Type: GrantFiled: July 7, 2020Date of Patent: August 17, 2021Assignee: GE PRECISION HEALTHCARE LLCInventors: Arie Shahar, Roi Harpaz, Elhanan Blaut
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Patent number: 11083430Abstract: The present invention provides a technique advantageous in suitably determining the irradiation end timing in a radiation imaging apparatus that can perform AEC. The radiation imaging apparatus comprises a sensor configured to detect radiation and a control unit, wherein the control unit generates, after the start of radiation irradiation, an evaluation value indicating the stability of a radiation irradiation intensity based on a sensor signal from the sensor, and the control unit outputs, in response to the evaluation value satisfying a predetermined condition, a signal indicating that the radiation irradiation intensity has stabilized.Type: GrantFiled: November 4, 2019Date of Patent: August 10, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Sho Sato, Minoru Watanabe, Keigo Yokoyama, Kentaro Fujiyoshi, Jun Kawanabe
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Patent number: 11080856Abstract: Methods of providing digital images of living tissue that may include: obtaining data of a propagating wavefield through living tissue; obtaining a reference digital image of the living tissue; selecting a holographic computational method of wavefield imaging; selecting a wavefield based on one or more parameters; calculating a sampling ratio by dividing a number of data samples in the data subset by a number of image samples in the data subset; decimating the data subset; generating a new digital image based on the selected holographic computational method of imaging, the decimated data subset, and parameters corresponding to the data subset; and determining a quantitative difference measure between the reference digital image and the new digital image based on the changing of one or more parameters selected from the group consisting of field sampling, imaging sampling, and image quality.Type: GrantFiled: June 18, 2020Date of Patent: August 3, 2021Assignee: Euram Geo-Focus Technologies CorporationInventor: Norman Neidell
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Patent number: 11071591Abstract: A method of modeling lungs of a patient includes acquiring computed tomography data of a patient's lungs, storing a software application within a memory associated with a computer, the computer having a processor configured to execute the software application, executing the software application to differentiate tissue located within the patient's lung using the acquired CT data, generate a 3-D model of the patient's lungs based on the acquired CT data and the differentiated tissue, apply a material property to each tissue of the differentiated tissue within the generated 3-D model, generate a mesh of the 3-D model of the patient's lungs, calculate a displacement of the patient's lungs in a collapsed state based on the material property applied to the differentiated tissue and the generated mesh of the generated 3-D model, and display a collapsed lung model of the patient's lungs based on the calculated displacement of the patient's lungs.Type: GrantFiled: July 26, 2018Date of Patent: July 27, 2021Assignee: COVIDIEN LPInventors: Joe D. Sartor, Arlen K. Ward, Francesca Rossetto, Ramesh Raghupathy, Srikara V. Peelukhana
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Patent number: 11058374Abstract: The present invention proposes a radiation detector including a housing, a radiation detection panel accommodated in the housing and converting radiation incident from the outside of the housing into an electric signal, a printed circuit board electrically connected to the radiation detection panel and an intermediate plate that is disposed between the radiation detection panel and the printed circuit board, supports the radiation detection panel, and is electrically connected to the ground line of the printed circuit board, wherein the intermediate plate is transmissive to the radiation.Type: GrantFiled: November 24, 2015Date of Patent: July 13, 2021Inventors: Seung Zoo Han, Jin Hyun Choi, Choul Woo Shin, Jung Seok Kim, Young Jong Oh, Jae Dong Lee
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Patent number: 11049899Abstract: A structure and a method for packaging an image sensor chip. The structure includes: an image sensor chip and a substrate. The image sensor chip includes a first surface and a second surface that are opposite to each other, and the first surface is provided with multiple pixels configured to collect image information and multiple first bonding pads connected with the multiple pixels. The substrate covers the first surface of the image sensor chip, and is provided with wiring and a contact terminal connected with the wiring. A periphery of the image sensor chip is bonded to the substrate via an anisotropic conductive adhesive, the multiple first bonding pads are electrically connected with the contact terminal via the anisotropic conductive adhesive, and the anisotropic conductive adhesive surrounds all the multiple pixels and is not overlapped with the multiple pixels in a direction perpendicular to the substrate.Type: GrantFiled: July 6, 2018Date of Patent: June 29, 2021Assignee: China Wafer Level CSP Co., Ltd.Inventors: Zhiqi Wang, Zhiming Geng