公开(公告)号：US09107641B2

公开(公告)日：2015-08-18

申请号：US14081411

申请日：2013-11-15

Applicant: General Electric Company

Inventor： James Zhengshe Liu

IPC: A61B6/00 ,  G06T5/50

CPC classification number: A61B6/541 ,  A61B6/487 ,  A61B6/503 ,  A61B6/504 ,  A61B6/5258

Abstract: This disclosure presents systems and methods that synchronize an x-ray imaging system with the heartbeat of a patient. A patient's heartbeat is sensed with a cardiac monitoring unit, and a processing unit generates x-ray pulses that are synchronized with the patient's heartbeat. Based on the real-time heartbeat information, an x-ray imaging device can be operated to obtain x-ray images at various states of the cardiac cycle. The x-ray images taken over several cardiac cycles can be combined based on the relative state of the cardiac cycle in which the images were obtained to achieve high temporal resolution of a cardiac cycle. Additionally, x-ray images obtained at common relative states of the cardiac cycle can be combined to provide higher quality cardiac image or images.

Abstract translation: 本公开提供了使x射线成像系统与患者心跳同步的系统和方法。 用心脏监测单元检测患者的心跳，并且处理单元产生与患者心跳同步的x射线脉冲。 基于实时心跳信息，可以操作x射线成像装置以获得心动周期的各种状态的X射线图像。 可以基于获得图像的心动周期的相对状态来组合在几个心动周期拍摄的X射线图像，以实现心脏周期的高时间分辨率。 此外，可以组合在心脏周期的共同相对状态下获得的x射线图像以提供更高质量的心脏图像或图像。

公开(公告)号：US20150146847A1

公开(公告)日：2015-05-28

申请号：US14090532

申请日：2013-11-26

Applicant: General Electric Company

Inventor： James Zhengshe Liu

IPC: G01N23/04 ,  G21K1/02 ,  G01T1/24

CPC classification number: G01N23/043 ,  A61B6/4405 ,  A61B6/4441 ,  A61B6/461 ,  A61B6/501 ,  G21K1/04

Abstract: Systems and methods for obtaining and displaying an X-ray image are described. The X-ray system contains an X-ray source, a CMOS based X-ray detector containing an active area for detecting an X-ray beam from the X-ray source, the active area containing an array of physical detector pixels having a pixel size or dimension ranging from about 10 μm×10 μm to about 50 μm×50 μm, a collimator defining an aperture, wherein the collimator is configured for a user to center the aperture over any portion of the active area of the CMOS based X-ray detector, and a display device configured to receive and display an X-ray image containing an array of virtual image pixels that have been previously binned at the CMOS based X-ray detector. Other embodiments are described.

Abstract translation: 描述用于获得和显示X射线图像的系统和方法。 X射线系统包含X射线源，基于CMOS的X射线检测器，其包含用于检测来自X射线源的X射线束的有源区域，该有源区域包含具有像素的物理检测器像素阵列 尺寸或尺寸范围从约10μm×10μm至约50μm×50μm，准直器，其限定孔径，其中准直器被配置为使用户将孔径定位在基于CMOS的X射线的有效区域的任何部分上方， 以及显示装置，其被配置为接收和显示包含先前在CMOS基X射线检测器上装箱的虚拟图像像素阵列的X射线图像。 描述其他实施例。

公开(公告)号：US20150139522A1

公开(公告)日：2015-05-21

申请号：US14082768

申请日：2013-11-18

Applicant: General Electric Company

Inventor： James Zhengshe Liu ,  Richard Larry Anderton ,  James Blake ,  Sung Kwan Pyun ,  Alexander Meyer

IPC: G06T5/10

CPC classification number: G06T5/20 ,  G06T5/005 ,  G06T2207/10116 ,  G06T2207/20012

Abstract: The present disclosure presents systems and methods for correcting image artifacts on an x-ray image. X-ray images are obtained and processed with a correction algorithm that generates corrected pixel lines having pixels with corrected pixel values. The corrected pixel lines can then be processed with a filtering algorithm that generates filtered pixel line having pixels with a filtered pixel value. The bad pixel lines are replaced by the filtered pixel lines to generate corrected x-ray images.

Abstract translation: 本公开提供了用于校正X射线图像上的图像伪影的系统和方法。 获得X射线图像并用校正算法进行处理，校正算法产生具有校正像素值的像素的校正像素线。 然后可以用生成具有滤波像素值的像素的滤波像素线的滤波算法来处理校正后的像素线。 坏的像素线被滤波的像素线替代以产生校正的x射线图像。

公开(公告)号：US20150108354A1

公开(公告)日：2015-04-23

申请号：US14060018

申请日：2013-10-22

Applicant: General Electric Company

Inventor： James Zhengshe Liu ,  Paul Richard Granfors

IPC: G01T1/20 ,  H01L27/146

CPC classification number: G01T1/2018 ,  G01T1/2006 ,  G01T1/2985 ,  H01L27/14607 ,  H01L27/14663

Abstract: An X-ray detector includes a light sensor configured to receive light energy from a scintillator receiving X-rays. The light sensor includes a grid of pixels having a light reception surface oriented toward the scintillator and configured to receive light from the scintillator. Each pixel includes a diode assembly, a control assembly and a capacitor assembly. The diode assembly is disposed on the light reception surface and is configured to produce electric charge responsive to light received by the diode assembly. The diode assembly includes plural diodes selectably configurable in plural combinations, wherein an amount of the electric charge produced by the diode assembly varies based on a selection of diode combination. The control assembly is operably connected to the diode assembly and configured to selectably configure the diodes. The capacitor assembly is operably connected to the diode assembly and configured to receive and store the electric charge from the diode assembly.

Abstract translation: X射线检测器包括被配置为从接收X射线的闪烁体接收光能的光传感器。 光传感器包括具有朝向闪烁体定向的光接收表面并被配置为接收来自闪烁体的光的像素网格。 每个像素包括二极管组件，控制组件和电容器组件。 二极管组件设置在光接收表面上并且被配置为响应于由二极管组件接收的光产生电荷。 二极管组件包括可选择地以多种组合配置的多个二极管，其中由二极管组件产生的电荷量根据二极管组合的选择而变化。 控制组件可操作地连接到二极管组件并且被配置为可选择地配置二极管。 电容器组件可操作地连接到二极管组件并且被配置为从二极管组件接收和存储电荷。

公开(公告)号：US20150092922A1

公开(公告)日：2015-04-02

申请号：US14567039

申请日：2014-12-11

Applicant: General Electric Company

Inventor： James Zhengshe Liu ,  Richard Larry Anderton ,  Brian James Grekowicz ,  Bela Janos Kiraly

IPC: G01T1/17 ,  A61B6/00

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.

Abstract translation: 成像系统包括被配置为将模拟像素值转换为第一数字像素值的模数转换器。 成像系统还包括被配置为从模数转换器接收第一数字像素值并且基于第一数字像素值与数字参考值的比较来生成数字索引值的索引值源。 此外，成像系统包括与索引值源通信并被配置为发送数字索引值的发射器。 此外，成像系统包括图像处理部件，被配置为至少部分地基于所接收的数字索引值和图像处理部件的查找表来接收数字索引值并生成第二数字像素值。

公开(公告)号：US20170227657A1

公开(公告)日：2017-08-10

申请号：US15365689

申请日：2016-11-30

Applicant: General Electric Company

Inventor： James Zhengshe Liu

IPC: G01T1/20 ,  H01L27/146

CPC classification number: G01T1/2018 ,  G01T1/2023 ,  H01L27/14676

Abstract: The present approaches relate to the fabrication of non-rectangular (e.g., non-square) light imager panels having comparable active areas to rectangular light imager panels but manufactured using fewer c-Si wafers. Such light imager panels may be generally squircle shaped (e.g., a square or rectangle with one or more rounded corners and may be manufactured using conventional crystalline silicon (c-Si) wafers, such as 8″ wafers.

公开(公告)号：US09684083B2

公开(公告)日：2017-06-20

申请号：US14242504

申请日：2014-04-01

Applicant: General Electric Company

Inventor： James Zhengshe Liu ,  Habib Vafi ,  Paul Richard Granfors

IPC: G01T1/24 ,  H01L31/18 ,  G01T1/20

CPC classification number: G01T1/24 ,  G01T1/2018 ,  H01L31/18

Abstract: An X-ray detector panel includes a plurality of photodetector wafers are arranged in a photodetector array. Each photodetector wafer comprises a sensing surface, a contact surface disposed opposite the sensing surface, and an electrical contact coupled to the contact surface. A substrate is coupled to the photodetector array such that the photodetector array is substantially surrounded by the substrate and a face surface of the substrate is substantially coplanar with the sensing surface. A scintillator is coupled to the face surface of the substrate and substantially covers the sensing surfaces of the photodetector array. A scintillator cover is substantially sealingly coupled to the face surface.

公开(公告)号：US09488737B2

公开(公告)日：2016-11-08

申请号：US14567039

申请日：2014-12-11

Applicant: GENERAL ELECTRIC COMPANY

Inventor： James Zhengshe Liu ,  Richard Larry Anderton ,  Brian James Grekowicz ,  Bela Janos Kiraly

IPC: G06K9/00 ,  G01T1/17 ,  H04N5/32 ,  H04N5/378 ,  A61B6/00

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.

公开(公告)号：US09349171B2

公开(公告)日：2016-05-24

申请号：US14082768

申请日：2013-11-18

Applicant: General Electric Company

Inventor： James Zhengshe Liu ,  Richard Larry Anderton ,  James Blake ,  Sung Kwan Pyun ,  Alexander Meyer

IPC: G06K9/00 ,  G06T5/20 ,  G06T5/00

CPC classification number: G06T5/20 ,  G06T5/005 ,  G06T2207/10116 ,  G06T2207/20012

Abstract: The present disclosure presents systems and methods for correcting image artifacts on an x-ray image. X-ray images are obtained and processed with a correction algorithm that generates corrected pixel lines having pixels with corrected pixel values. The corrected pixel lines can then be processed with a filtering algorithm that generates filtered pixel line having pixels with a filtered pixel value. The bad pixel lines are replaced by the filtered pixel lines to generate corrected x-ray images.

Abstract translation: 本公开提供了用于校正X射线图像上的图像伪影的系统和方法。 获得X射线图像并用校正算法进行处理，校正算法产生具有校正像素值的像素的校正像素线。 然后可以用生成具有滤波像素值的像素的滤波像素行的滤波算法来处理校正的像素线。 坏的像素线被滤波的像素线替代以产生校正的x射线图像。

公开(公告)号：US20150103973A1

公开(公告)日：2015-04-16

申请号：US14052026

申请日：2013-10-11

Applicant: General Electric Company

Inventor： James Zhengshe Liu ,  Jonathan Edvard Snyder ,  Richard Larry Anderton ,  David Ellis Barker ,  Brian James Grekowicz

IPC: G01T1/208 ,  G01T1/20 ,  G01N23/223 ,  G01N23/02 ,  G01N23/04

CPC classification number: H01L27/14641 ,  A61B6/4208 ,  A61B6/545 ,  G01N23/04 ,  G01T1/17 ,  G01T1/2006 ,  G01T1/2018 ,  G01T1/208 ,  H01L27/146 ,  H01L27/14601 ,  H01L27/14609 ,  H04N5/32 ,  H04N5/355 ,  H04N5/3559 ,  H04N5/3745 ,  H04N5/37452

Abstract: An x-ray system with multiple dynamic range selections. The system including an x-ray source and a detector, wherein the detector includes a scintillator and a pixel. The pixel includes a photodiode and first and second capacitors connectable to the photodiode. The pixel is configured to be switched between a first state where only the first capacitor is connected to the photodiode and a second state where both capacitors are connected to the photodiode. The x-ray source directs x-rays to the detector and a region of interest positioned between the source and detector, the scintillator converts the x-rays to light, and the pixel photodiode converts the light to an electrical charge. The charge is stored in the first capacitor when the pixel is in the first state and in the first and second capacitors when the pixel is in the second state.

Abstract translation: 具有多种动态范围选择的x射线系统。 所述系统包括x射线源和检测器，其中所述检测器包括闪烁体和像素。 像素包括光电二极管和可连接到光电二极管的第一和第二电容器。 像素被配置为在只有第一电容器连接到光电二极管的第一状态和两个电容器连接到光电二极管的第二状态之间切换。 x射线源将x射线引导到检测器和感兴趣的区域位于源极和检测器之间，闪烁体将x射线转换成光，并且像素光电二极管将光转换成电荷。 当像素处于第一状态时，当像素处于第二状态时，电荷被存储在第一电容器中。