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公开(公告)号：US10121817B2
公开(公告)日：2018-11-06
申请号：US14973417
申请日：2015-12-17
Applicant: General Electric Company
Inventor： Biju Jacob , James Zhengshe Liu
IPC: G01N23/04 , H05G1/64 , H01L27/146 , G01T1/24
Abstract: A flat panel detector is provided having a circular active area. The flat panel detector is built using complementary metal-oxide-semiconductor (CMOS) tiles. In one implementation, the flat panel detector having a circular active area can be used as a replacement for a conventional image intensifier, including an image intensifier used in a fluoroscopy system.
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公开(公告)号：US20170229502A1
公开(公告)日：2017-08-10
申请号：US15365599
申请日：2016-11-30
Applicant: General Electric Company
Inventor： James Zhengshe Liu , Habib Vafi , Jingyi Liang , Nicholas Ryan Konkle
IPC: H01L27/146 , G01T1/20
CPC classification number: H01L27/14609 , G01T1/2018 , G01T1/2023 , H01L27/14676
Abstract: Fabrication and use of an X-ray detector scan interface having separate enable and reset lines for each line (e.g., row) of pixels is described. In certain implementations, the respective enable and reset lines are connected such that activation of an enable line for a given line of pixels is concurrent with activation of a reset line for a different (e.g., preceding) row of pixels. In this manner, readout of one row of pixels is performed in conjunction with resetting the row of pixels readout in the preceding operation. In another technical implementation, a non-rectangular detector is divided into quadrants, with alternating quadrants configured for scan module or data module operations such that no quadrant has overlapping scan and data interconnections at the connection finger regions.
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公开(公告)号：US20170179186A1
公开(公告)日：2017-06-22
申请号：US14973417
申请日：2015-12-17
Applicant: General Electric Company
Inventor： Biju Jacob , James Zhengshe Liu
IPC: H01L27/146 , G01N23/04 , G01T1/24
CPC classification number: H01L27/14663 , G01N23/043 , G01N2223/501 , G01T1/247
Abstract: A flat panel detector is provided having a circular active area. The flat panel detector is built using complementary metal-oxide-semiconductor (CMOS) tiles. In one implementation, the flat panel detector having a circular active area can be used as a replacement for a conventional image intensifier, including an image intensifier used in a fluoroscopy system.
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公开(公告)号：US20170023682A1
公开(公告)日：2017-01-26
申请号：US14807516
申请日：2015-07-23
Applicant: General Electric Company
Inventor： James Zhengshe Liu , Habib Vafi , Paul Richard Granfors
IPC: G01T1/20 , H01L27/146 , G01T1/24
CPC classification number: G01T1/2018 , G01T1/24 , H01L27/14663 , H01L27/1469
Abstract: An x-ray image detector includes a light image sensor having a depth, a front side comprising a sensing surface, and a back side. The x-ray image detector further includes a substrate plate on the back side and surrounding the depth of the light image sensor such that the substrate plate forms a lip around the light image sensor. The lip is level with the front side of the light image sensor. The x-ray image detector further includes a scintillator over the sensing surface of the light image sensor and at least a portion of the lip.
Abstract translation: X射线图像检测器包括具有深度的光图像传感器，包括感测表面的前侧和后侧。 X射线图像检测器还包括背面侧的衬底板，并围绕光图像传感器的深度，使得衬底板在光图像传感器周围形成一个唇部。 嘴唇与光图像传感器的前侧平齐。 X射线图像检测器还包括在光图像传感器的感测表面上的闪烁体和唇缘的至少一部分。
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公开(公告)号：US20190246999A1
公开(公告)日：2019-08-15
申请号：US15893471
申请日：2018-02-09
Applicant: General Electric Company
Inventor： James Zhengshe Liu , Naveen Stephan Chandra
Abstract: Methods and systems are provided for controlling an x-ray imaging system. In one embodiment, a method for an x-ray imaging system, includes acquiring, with the x-ray imaging system, a plurality of images as an x-ray tube current of the x-ray imaging system is ramping from a predefined x-ray tube current to an updated x-ray tube current, the updated x-ray tube current determined based on an estimated patient thickness estimated from a prior image acquired with the x-ray imaging system while the x-ray tube current is at the predefined x-ray tube current, combining the plurality of images into a final image, and outputting the final image for display via a display device.
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Patent Agency Ranking
公开(公告)号：US10036814B2
公开(公告)日：2018-07-31
申请号：US14807516
申请日：2015-07-23
Applicant: General Electric Company
Inventor： James Zhengshe Liu , Habib Vafi , Paul Richard Granfors
IPC: G01T1/20 , G01T1/24 , H01L27/146
CPC classification number: G01T1/2018 , G01T1/24 , H01L27/14663 , H01L27/1469
Abstract: An x-ray image detector includes a light image sensor having a depth, a front side comprising a sensing surface, and a back side. The x-ray image detector further includes a substrate plate on the back side and surrounding the depth of the light image sensor such that the substrate plate forms a lip around the light image sensor. The lip is level with the front side of the light image sensor. The x-ray image detector further includes a scintillator over the sensing surface of the light image sensor and at least a portion of the lip.
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公开(公告)号：US10032813B2
公开(公告)日：2018-07-24
申请号：US15365599
申请日：2016-11-30
Applicant: General Electric Company
Inventor： James Zhengshe Liu , Habib Vafi , Jingyi Liang , Nicholas Ryan Konkle
IPC: H01L27/146 , G01T1/20
Abstract: Fabrication and use of an X-ray detector scan interface having separate enable and reset lines for each line (e.g., row) of pixels is described. In certain implementations, the respective enable and reset lines are connected such that activation of an enable line for a given line of pixels is concurrent with activation of a reset line for a different (e.g., preceding) row of pixels. In this manner, readout of one row of pixels is performed in conjunction with resetting the row of pixels readout in the preceding operation. In another technical implementation, a non-rectangular detector is divided into quadrants, with alternating quadrants configured for scan module or data module operations such that no quadrant has overlapping scan and data interconnections at the connection finger regions.
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公开(公告)号：US09974514B2
公开(公告)日：2018-05-22
申请号：US14512643
申请日：2014-10-13
Applicant: GENERAL ELECTRIC COMPANY
Inventor： James Zhengshe Liu
CPC classification number: A61B6/585 , A61B6/0407 , A61B6/4405 , A61B6/4441 , A61B6/4464 , A61B6/5211 , A61B6/5258 , G06T5/009 , G06T2207/10116 , G06T2207/30004
Abstract: A computer-implemented method for reducing image artifacts in X-ray image data includes dividing pixels of X-ray image data into a plurality of pixel value regions based on a pixel value of each pixel, wherein each pixel value region has a different range of pixel values. The method also includes generating calibrated X-ray image data for each pixel value region, wherein the respective calibrated X-ray image data for each pixel value region is generated using a different dose of radiation. Further, the method includes calculating a gain slope for each pixel value region based on the calibrated X-ray image data, and calculating a pixel gain correction for the pixels of the X-ray image data based on at least one of the calculated gain slopes.
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9.发明授权公开(公告)号：US09749558B2
公开(公告)日：2017-08-29
申请号：US14741739
申请日：2015-06-17
Applicant: GENERAL ELECTRIC COMPANY
Inventor： James Zhengshe Liu
CPC classification number: H04N5/3575 , G01N23/04 , G01N2223/505 , G01T1/2018 , G01T1/208 , G01T1/247 , H04N5/32 , H04N5/37452
Abstract: A digital X-ray imaging system is provided. The digital X-ray imaging system includes an X-ray source and a digital X-ray detector. The digital X-ray detector includes a scintillator configured to absorb radiation emitted from the X-ray source and to emit optical photons in response to the absorbed radiation. The digital X-ray detector also includes multiple pixels, each pixel including a pinned photodiode and at least two charge-storage capacitors coupled to the pinned photodiode, wherein each pixel is configured to absorb the optical photons emitted by the scintillator and each pinned photodiode is configured to generate a photocharge in response to the absorbed optical photons. The digital X-ray detector further includes control circuitry coupled to each pixel of the multiple pixels and configured to selectively control a respective flow of the photocharge generated by the pinned photodiode to a respective charge-storage capacitor of the at least two charge-storage capacitors during integration.
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公开(公告)号：US09689993B2
公开(公告)日：2017-06-27
申请号：US15150699
申请日：2016-05-10
Applicant: General Electric Company
CPC classification number: G01T1/17 , A61B6/4405 , A61B6/563 , H04N5/32 , H04N5/378
Abstract: An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.
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