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1. 发明申请

WO2012047976A3 LOW-DOSE AUTOMATIC EXPOSURE CONTROL SYSTEM FOR DIGITAL PORTABLE X-RAY IMAGING 审中-公开
公开(公告)号：WO2012047976A3
公开(公告)日：2012-04-12
申请号：PCT/US2011/054895
申请日：2011-10-05
申请人： CARESTREAM HEALTH, INC. , FOOS, David, H. , WANG, Xiaohui , SEHNERT, William, J.
发明人： FOOS, David, H. , WANG, Xiaohui , SEHNERT, William, J.
IPC分类号： A61B6/00 , A61B6/10
摘要： A method for obtaining a radiographic image, the method executed at least in part on a computer, generates a first exposure and acquires image data from the first exposure as a first component image. A second exposure is generated using one or more parameters that are adjusted according to an image quality characteristic of the acquired image data from the first exposure. Image data is acquired from the second exposure as a second component image. One or more additional exposures are generated and an additional component image acquired with each additional exposure. A composite image is formed by combining image data content from the first and second component images and the one or more additional component images.

2. 发明申请

WO2011130210A3 EXPOSURE CONTROL USING DIGITAL RADIOGRAPHY DETECTOR 审中-公开
公开(公告)号：WO2011130210A3
公开(公告)日：2011-10-20
申请号：PCT/US2011/032035
申请日：2011-04-12
申请人： CARESTREAM HEALTH, INC. , LALENA, Michael, C. , WANG, Xiaohui , FOOS, David, H.
发明人： LALENA, Michael, C. , WANG, Xiaohui , FOOS, David, H.
IPC分类号： H05G1/38 , A61B6/00
摘要： An apparatus and method for sensing a level of ionizing radiation directed from a radiation source through a subject and toward a digital radiography detector. Image data is obtained that relates the position of the subject to the digital radiography detector and assigns one or more radiant-energy sensing elements of the digital radiography detector as one or more exposure control sensing elements. The one or more exposure control sensing elements are sampled one or more times during exposure to measure the exposure directed to the subject. A signal is provided to terminate exposure according to exposure measurements obtained from the one or more exposure control sensing elements within the digital radiography detector.

3. 发明申请

WO2007126667A2 PROCESSING AND MEASURING THE SPINE IN RADIOGRAPHS 审中-公开
标题翻译：加工和测量无脊椎动物的脊椎
公开(公告)号：WO2007126667A2
公开(公告)日：2007-11-08
申请号：PCT/US2007/007106
申请日：2007-03-22
申请人： EASTMAN KODAK COMPANY , LUO, Hui , WANG, Xiaohui , FOOS, David H.
发明人： LUO, Hui , WANG, Xiaohui , FOOS, David H.
IPC分类号： G06T7/60 , A61B5/00
CPC分类号： G06T7/60 , G06K9/00 , G06K2209/05 , G06T7/0012 , G06T7/11 , G06T7/149 , G06T2207/10116 , G06T2207/20124 , G06T2207/30012
摘要： An image processing method for automatically analyzing the spine in a radiograph. The methods includes the steps of acquiring the radiographic image in digital form; detecting the spine midline in the radiograph, locating vertebra and pedicle along the spine midline, and calculating geometrical data of the spine in the radiograph.
摘要翻译：一种用于自动分析放射照片中脊柱的图像处理方法。该方法包括以数字形式获取放射照相图像的步骤; 检测射线照片中的脊柱中线，沿脊柱中线定位椎骨和椎弓根，并计算放射照片中脊柱的几何数据。

4. 发明申请

WO2008088480A1 LONG LENGTH IMAGING USING DIGITAL RADIOGRAPHY 审中-公开
标题翻译：使用数字放映的长长成像
公开(公告)号：WO2008088480A1
公开(公告)日：2008-07-24
申请号：PCT/US2007/024840
申请日：2007-12-03
申请人： CARESTREAM HEALTH, INC. , WANG, Xiaohui , RUSCIO, Richard
发明人： WANG, Xiaohui , RUSCIO, Richard
IPC分类号： A61B6/00 , A61B6/06
CPC分类号： G03B42/02 , A61B6/02 , A61B6/06 , A61B6/4441 , A61B6/4476 , A61B6/5241 , A61B6/542 , A61B6/545 , H04N5/2624 , H04N5/32
摘要： A method for long length imaging with a digital radiography apparatus. Setup instructions are obtained for the image and a set of imaging positions is calculated for an exposure series according to the setup instructions. An operator command is obtained to initiate an imaging sequence. The imaging sequence is executed for each member of the set of imaging positions in the exposure series by automatically repeating the steps of positioning a radiation source and a detector at a location corresponding to the specified member of the set of imaging positions and obtaining an image from the detector at that location and storing the image as a partial image. The long length image is generated by combining two or more partial images.
摘要翻译：一种用数字放射线照相设备进行长距离成像的方法。为图像获得设置指令，并根据设置说明为曝光序列计算一组成像位置。获得操作员命令来启动成像序列。通过自动重复将辐射源和检测器放置在与该组成像位置的指定成员相对应的位置处的步骤，并且从曝光序列中的成像位置组中的每个成员执行成像序列，并从该位置处的检测器并将图像存储为部分图像。通过组合两个或更多个部分图像来生成长长度图像。

5. 发明申请

WO2008063630A1 TONE SCALE TRANSFORMATION FOR RADIOLOGICAL IMAGES 审中-公开
标题翻译：用于放射学图像的TONE SCALE TRANSFORMATION
公开(公告)号：WO2008063630A1
公开(公告)日：2008-05-29
申请号：PCT/US2007/024237
申请日：2007-11-20
申请人： CARESTREAM HEALTH, INC. , COUWENHOVEN, Mary, E. , HEATH, Michael, D. , WANG, Xiaohui , ZHANG, Daoxian , HEFFERNAN, Patrick, B.
发明人： COUWENHOVEN, Mary, E. , HEATH, Michael, D. , WANG, Xiaohui , ZHANG, Daoxian , HEFFERNAN, Patrick, B.
IPC分类号： G06T5/00
CPC分类号： G06T5/002 , G06T5/003 , G06T5/009 , G06T2207/10116
摘要： A method for transforming radiological image data from a digital receiver obtains digital image data values from the digital receiver and compensates for exposure response differences between a screen film system and the digital receiver. Modulation transfer function differences between the screen film system and the digital receiver are compensated and noise content at frequencies approaching the Nyquist frequency for the digital receiver is suppressed.
摘要翻译：用于从数字接收机转换放射图像数据的方法从数字接收器获得数字图像数据值，并补偿屏幕胶片系统和数字接收器之间的曝光响应差异。补偿屏幕胶片系统和数字接收机之间的调制传递函数差异，并抑制数字接收机接近奈奎斯特频率的噪声含量。

6. 发明申请

WO2008018998A3 METHOD FOR PRODUCING A CROPPED MEDICAL IMAGE 审中-公开
公开(公告)号：WO2008018998A3
公开(公告)日：2008-02-14
申请号：PCT/US2007/016860
申请日：2007-07-27
申请人： CARESTREAM HEALTH, INC. , BARSKI, Lori , WANG, Xiaohui
发明人： BARSKI, Lori , WANG, Xiaohui
IPC分类号： G06T7/00
摘要： A method of displaying a digital medical image. The steps include acquiring a digital medical image; determining from the acquired digital medical image the anatomically relevant region which defines the relevant image boundaries; and determining an optimum virtual plate size from a stored plurality of virtual plate sizes for displaying the anatomically relevant regions of the digital medical image on a display device. In one arrangement, the acquired digital medical image has associated exam information (such as bodypart and image projection), the plurality of virtual plate sizes are stored by exam information, and the optimum plate size is determined, at least in part, by the exam information associated with the digital medical image.

7. 发明申请

WO2012121890A3 ALIGNMENT APPARATUS FOR X-RAY IMAGING SYSTEM 审中-公开
公开(公告)号：WO2012121890A3
公开(公告)日：2012-09-13
申请号：PCT/US2012/026221
申请日：2012-02-23
申请人： CARESTREAM HEALTH, INC. , STAGNITTO, Joseph, R. , WANG, Xiaohui , LALENA, Michael, C.
发明人： STAGNITTO, Joseph, R. , WANG, Xiaohui , LALENA, Michael, C.
IPC分类号： A61B6/00 , A61B6/08 , A61B6/12
摘要： A method for aligning a radiation source with a portable image receiver in a radiographic imaging system generates a magnetic field with a predetermined field pattern and with a time-varying vector direction at a predetermined frequency from an emitter apparatus that is coupled to the radiation source, wherein the generated magnetic field further comprises a synchronization signal. Sensed signals from the magnetic field are obtained from a sensing apparatus that is coupled to the image receiver, wherein the sensing apparatus comprises three or more sensor elements, wherein at least two of the sensor elements are arranged at different angles relative to each other and are disposed outside the imaging area of the image receiver. An output signal is indicative of an alignment adjustment according to the amplitude and phase of the obtained sensed signals relative to the synchronization signal.

8. 发明申请

WO2008069934A1 EDGE BOUNDARY DEFINITION FOR RADIOGRAPHIC DETECTOR 审中-公开
标题翻译：用于放射性探测器的边缘边界定义
公开(公告)号：WO2008069934A1
公开(公告)日：2008-06-12
申请号：PCT/US2007/024452
申请日：2007-11-28
申请人： CARESTREAM HEALTH, INC. , WANG, Xiaohui
发明人： WANG, Xiaohui
IPC分类号： G01N23/04 , A61B6/00 , G06K9/00 , G06T5/00 , G06T5/40
CPC分类号： G01N23/04 , A61B6/00 , G06T7/12 , G06T7/194 , G06T2207/10116 , G06T2207/20068 , G06T2207/30004
摘要： A method for defining edge boundaries of an image formed on a flat-panel radiographic detector. Including obtaining digital image pixel values from the radiographic detector; obtaining dimensional information about a collimator in the radiographic signal path; analyzing the image to detect one or more collimator blade edges; and processing the digital image pixel values at least once to detect remaining collimator blade edges. The method accumulates image pixel values along each of a plurality of lines in a first direction parallel to a first vector that extends across the image, to obtain a first profile value for each line in said first direction, thereby forming an ordered set of first profile values. The method then identifies first and second threshold values in the set of first profile values, wherein the paired first and second threshold values indicate an edge boundary corresponding to a collimator blade projection along the first direction.
摘要翻译：一种用于定义在平板射线检测器上形成的图像的边缘的方法。包括从放射线检测器获得数字图像像素值; 获取关于放射线照相信号路径中的准直仪的尺寸信息; 分析图像以检测一个或多个准直器叶片边缘; 并且至少一次处理数字图像像素值以检测剩余的准直器叶片边缘。该方法沿着平行于跨越图像的第一向量的第一方向上的多条线中的每一行累积图像像素值，以获得在所述第一方向上的每条线的第一轮廓值，从而形成第一轮廓的有序集合值。该方法然后识别第一轮廓值集合中的第一和第二阈值，其中成对的第一和第二阈值表示对应于沿着第一方向的准直器叶片投影的边缘边界。

9. 发明申请

WO2022271583A1 X-RAY DETECTOR IN PATIENT BED 审中-公开
公开(公告)号：WO2022271583A1
公开(公告)日：2022-12-29
申请号：PCT/US2022/034146
申请日：2022-06-20
申请人： CARESTREAM HEALTH, INC.
发明人： WANG, Xiaohui , JONES, Robert S. , HUANG, Weidong , FOOS, David H.
IPC分类号： A61B6/04 , A61B6/00 , A61B6/0407 , A61B6/4283 , A61B6/4452 , A61B6/547
摘要： A radiographic imaging system provides a digital x-ray detector embedded in a patient bed. A patient lying normally on the bed, either flat or at an angle, is positioned above the digital detector. A frame assembly is attached to the bed under the patient and movably secures the digital detector. The frame assembly includes motorized control configured to move the digital detector in the x-y plane of the detector according to commands transmitted by system operators or by automatic system instruction.

10. 发明申请

WO2014055488A2 RAPID FRAME-RATE WIRELESS IMAGING 审中-公开
标题翻译：快速帧速率无线成像
公开(公告)号：WO2014055488A2
公开(公告)日：2014-04-10
申请号：PCT/US2013/062823
申请日：2013-10-01
申请人： CARESTREAM HEALTH, INC.
发明人： SEHNERT, William, J. , RICHARD, Samuel , YORKSTON, John , WANG, Xiaohui
IPC分类号： A61B6/06 , A61B6/00
CPC分类号： A61B6/4411 , A61B6/06 , A61B6/4007 , A61B6/4021 , A61B6/4233 , A61B6/4283 , A61B6/4405 , A61B6/4441 , A61B6/464 , A61B6/467 , A61B6/481 , A61B6/487 , A61B6/542 , A61B6/547 , A61B6/56 , A61B6/563 , A61B6/587 , A61B6/588 , G21K1/046
摘要： A method for defining the shape of a radiation beam that is directed toward a subject and to a free-standing imaging detector detects the position and orientation of the imaging detector relative to a radiation source, then adjusts an aperture that lies in the path of the radiation beam to shape the beam for incidence on a predetermined area of the detector according to the detected imaging detector position. The radiation source is energized to emit the shaped radiation beam and the image data about the subject is acquired from the imaging detector.
摘要翻译：用于限定朝向被摄体和独立成像检测器的辐射束的形状的方法检测成像检测器相对于辐射源的位置和取向，然后调节位于辐射束以根据检测到的成像检测器位置成形入射到检测器的预定区域上的光束。辐射源被激励以发射成形的辐射束，并且从成像检测器获取关于对象的图像数据。

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