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1. 发明授权

US6151383A Radiographic testing system with learning-based performance prediction 失效
标题翻译：射线检测系统与基于学习的性能预测
公开(公告)号：US6151383A
公开(公告)日：2000-11-21
申请号：US224242
申请日：1998-12-30
申请人： Ping Xue , Richard Aufrichtig , Michael Andrew Juhl
发明人： Ping Xue , Richard Aufrichtig , Michael Andrew Juhl
IPC分类号： H05G1/26 , A61B6/00 , H05G1/44
CPC分类号： A61B6/542 , A61B6/00 , H05G1/44
摘要： Disclosed herein is a radiographic imaging system which performs system performance monitoring by (1) using automatic exposure control (AEC) components to predict the average image gray level; (2) obtaining measured average image gray levels from the portions of the X-ray detector situated in the X-ray shadow of the AEC components; and then (3) comparing the predicted and measured values. The predicted values are determined by use of a prediction model which is modified by a learning system over successive exposures to provide more accurate predictions. After the learning system has sufficiently developed the prediction model, the error between the predicted and measured gray level values may be monitored in later exposures and an error routine can be activated if the error exceeds a predetermined threshold. In this case, the error may indicate that system components in the imaging chain (e.g., the detector or AEC components) require maintenance.
摘要翻译：本文公开了一种射线成像系统，其通过（1）使用自动曝光控制（AEC）分量来预测平均图像灰度级来执行系统性能监视; （2）从位于AEC组件的X射线阴影中的X射线检测器的部分获得测量的平均图像灰度; 然后（3）比较预测值和测量值。预测值通过使用由学习系统对连续曝光进行修改以提供更准确的预测的预测模型来确定。在学习系统充分发展了预测模型之后，可以在稍后的曝光中监视预测和测量的灰度值之间的误差，并且如果误差超过预定阈值，则可以激活错误例程。在这种情况下，错误可能表明成像链中的系统组件（例如，检测器或AEC组件）需要维护。

2. 发明授权

US06920198B2 Methods and apparatus for processing a fluoroscopic image 失效
标题翻译：用于处理透视图像的方法和装置
公开(公告)号：US06920198B2
公开(公告)日：2005-07-19
申请号：US10428734
申请日：2003-05-02
申请人： Ping Xue , Kenneth Scott Kump , Brian David Yanoff , Richard Aufrichtig , Mylene Roussel
发明人： Ping Xue , Kenneth Scott Kump , Brian David Yanoff , Richard Aufrichtig , Mylene Roussel
IPC分类号： A61B6/00 , G01N23/223 , H04N5/321 , G01N23/083
CPC分类号： H04N5/321 , G01N23/223 , G01N2223/076
摘要： A method for processing a fluoroscopic image includes generating a lag prediction model, scanning an object at a first radiation dosage with an imaging system including at least one radiation source and at least one detector array, and periodically updating the lag prediction model during the scan to generate at least one fluoroscopic image of the object.
摘要翻译：一种用于处理透视图像的方法包括：产生滞后预测模型，用包括至少一个辐射源和至少一个检测器阵列的成像系统以第一辐射剂量扫描物体，并且在扫描期间周期性地更新滞后预测模型生成对象的至少一个透视图像。

3. 发明授权

US06792159B1 Correction of defective pixels in a detector using temporal gradients 失效
标题翻译：使用时间梯度校正检测器中的缺陷像素
公开(公告)号：US06792159B1
公开(公告)日：2004-09-14
申请号：US09474498
申请日：1999-12-29
申请人： Richard Aufrichtig , Kenneth Scott Kump , Ping Xue
发明人： Richard Aufrichtig , Kenneth Scott Kump , Ping Xue
IPC分类号： G06K940
CPC分类号： H04N5/367 , H04N5/32
摘要： A detector imaging system having an apparatus and method for correcting defective pixels in a current acquired image is disclosed herein. The system performs the correction of defective pixels using image feature information and temporal information. The system includes a correction scheme which includes determining a temporal matrix based on the current acquired image, at least one prior acquired image, and a filter weight; determining a local gradient based in part on the temporal matrix and a gradient kernel; and providing a correction value based on the local gradient to correct the defective pixel. The correction scheme is repeated a plurality of times as desired to correct all the defective pixels in the current acquired image.
摘要翻译：本文公开了一种具有用于校正当前获取的图像中的有缺陷像素的装置和方法的检测器成像系统。该系统使用图像特征信息和时间信息来执行缺陷像素的校正。该系统包括校正方案，其包括基于当前获取的图像确定时间矩阵，至少一个先前获取的图像和滤波器权重; 部分地基于时间矩阵和梯度核确定局部梯度; 以及基于所述局部梯度提供校正值以校正所述缺陷像素。校正方案根据需要多次重复以校正当前获取的图像中的所有缺陷像素。

4. 发明授权

US07068854B1 Correction of defective pixels in a detector 失效
标题翻译：校正检测器中的缺陷像素
公开(公告)号：US07068854B1
公开(公告)日：2006-06-27
申请号：US09474715
申请日：1999-12-29
申请人： Richard Aufrichtig , Ping Xue , Kenneth Scott Kump
发明人： Richard Aufrichtig , Ping Xue , Kenneth Scott Kump
IPC分类号： G06K9/40
CPC分类号： G06T3/4015 , G06T5/20
摘要： A detector imaging system having an apparatus and method for correcting defective pixels in an acquired image is disclosed herein. The system includes a correction scheme including temporarily replacing a defective pixel with a linear interpolation of the defective pixel's surrounding neighboring pixel values, determining a local gradient based in part on the acquired image and a gradient kernel, and providing a correction value based on the local gradient to correct the defective pixel. The correction scheme is repeated a plurality of times as desired to correct all the defective pixels in the acquired image.
摘要翻译：本文公开了一种具有用于校正所获取的图像中的有缺陷像素的装置和方法的检测器成像系统。该系统包括校正方案，其包括用缺陷像素围绕相邻像素值的线性插值临时替换缺陷像素，部分地基于所获取的图像和梯度核确定局部梯度，并且基于本地渐变以校正缺陷像素。校正方案根据需要多次重复以校正所获取的图像中的所有缺陷像素。

5. 发明授权

US07005663B2 Sampling methods and systems that shorten readout time and reduce lag in amorphous silicon flat panel x-ray detectors 失效
标题翻译：采样方法和系统缩短了非晶硅平板x射线探测器的读出时间并减少滞后
公开(公告)号：US07005663B2
公开(公告)日：2006-02-28
申请号：US10646107
申请日：2003-08-22
申请人： Manat Maolinbay , Paul Granfors , Richard Aufrichtig , Richard Cronce
发明人： Manat Maolinbay , Paul Granfors , Richard Aufrichtig , Richard Cronce
IPC分类号： G03B42/08 , G01T1/105
CPC分类号： G01T1/2928
摘要： Sampling methods and systems that shorten readout time and reduce lag in amorphous silicon flat panel x-ray detectors are described. Embodiments comprise: (a) activating a reset switch to discharge any residual signal being held in a feedback capacitor; (b) deactivating the reset switch; (c) activating a field effect transistor; (d) sampling an electrical signal from the amorphous silicon flat panel x-ray detector, while the field effect transistor is activated; (e) activating a reset switch, after the electrical signal has been sampled and while the field effect transistor is still activated, to discharge any residual signal being held in the feedback capacitor; (f) deactivating the field effect transistor, while the reset switch is still activated; (g) deactivating the reset switch; and (h) repeating steps (c)–(g) as necessary to obtain a predetermined radiographic image.
摘要翻译：描述了缩短非晶硅平板X射线检测器的读出时间和减少滞后的采样方法和系统。实施例包括：（a）激活复位开关以放电保持在反馈电容器中的任何残留信号; （b）禁用复位开关; （c）激活场效应晶体管; （d）在场效应晶体管被激活的同时，从非晶硅平板x射线检测器取样电信号; （e）在电信号被采样之后并且当场效应晶体管仍被激活时激活复位开关，以放电保持在反馈电容器中的任何残留信号; （f）当复位开关仍然被激活时，去激活场效应晶体管; （g）停用复位开关; 和（h）根据需要重复步骤（c） - （g）以获得预定的放射照相图像。

6. 发明授权

US06256372B1 Apparatus and methods for stereo radiography 失效
标题翻译：用于立体射线照相术的装置和方法
公开(公告)号：US06256372B1
公开(公告)日：2001-07-03
申请号：US09268788
申请日：1999-03-16
申请人： Richard Aufrichtig , Jeffrey Alan Kautzer
发明人： Richard Aufrichtig , Jeffrey Alan Kautzer
IPC分类号： A61B602
CPC分类号： A61B6/548 , A61B6/022 , A61B6/4464 , A61B6/4476 , A61B6/581 , G01N23/04 , H04N13/194 , H04N13/207 , H04N13/221 , H04N13/239 , H04N13/254 , H04N13/296 , H04N13/305 , H04N13/31 , H04N13/334 , H04N13/341 , H04N13/398 , H04N2013/0081
摘要： A digital radiographic imaging system is described which includes an automatic X-ray exposure sequence during which two consecutive images of a target are obtained from two views separated by a translation of the X-ray emitter, wherein such translation is oriented generally parallel to the plane of the X-ray detector. The two images acquired by the digital X-ray detector may then be combined using stereo reconstruction to generate a three-dimensional image of the interior of the target. The three-dimensional combination of images allows for better radiographic definition of clinical objects of interest, thereby increasing a radiologist's ability to detect and distinguish between normal and pathological structures.
摘要翻译：描述了一种数字放射线照相成像系统，其包括自动X射线曝光序列，在该自动X射线曝光序列期间，从通过X射线发射器的平移分开的两个视图获得目标的两个连续图像，其中这种平移方向大致平行于平面的X射线检测器。然后可以使用立体重建来组合由数字X射线检测器采集的两个图像，以产生目标内部的三维图像。图像的三维组合允许对感兴趣的临床物体的更好的射线照相定义，从而增加放射科医师检测和区分正常和病理结构的能力。

7. 发明授权

US06175658B1 Spatially-selective edge enhancement for discrete pixel images 失效
标题翻译：离散像素图像的空间选择性边缘增强
公开(公告)号：US06175658B1
公开(公告)日：2001-01-16
申请号：US09113653
申请日：1998-07-10
申请人： Kenneth S. Kump , Richard Aufrichtig
发明人： Kenneth S. Kump , Richard Aufrichtig
IPC分类号： G06K940
CPC分类号： G06T5/003 , G06T5/50 , G06T2207/10116 , G06T2207/20016 , G06T2207/20192 , G06T2207/30004
摘要： A discrete pixel image is enhanced to bring out particular features of interest such as edges. The enhancement includes decomposition of the original processed image data, enhancement by application of gain images to the decomposed images, and reconstruction of the enhanced image. The decomposition proceeds through a series of low-pass filters to arrive at decomposed images of progressively lower spatial frequencies. These decomposed images are then multiplied by gain images during the enhancement phase. Gain images for at least the higher spatial frequency level images are derived from lower spatial frequency level images. These spatial frequency-based gain images may be based upon operator inputs, including a spatial sensitivity function and an edge enhancement value. Lower spatial frequency level images may be processed by application of predetermined gain values. The reconstruction sequence recombines the decomposed images after application of the gains to arrive at an enhanced image of the same dimensions as the original image.
摘要翻译：离散像素图像被增强以产生诸如边缘的特定的感兴趣的特征。该增强包括原始处理的图像数据的分解，通过对分解的图像应用增益图像的增强以及增强图像的重建。分解通过一系列低通滤波器进行，以得到逐渐降低的空间频率的分解图像。然后在增强阶段将这些分解图像乘以增益图像。至少较高的空间频率水平图像的增益图像从较低的空间频率水平图像导出。这些基于空间频率的增益图像可以基于操作者输入，包括空间灵敏度函数和边缘增强值。可以通过应用预定增益值来处理较低空间频率电平图像。重建序列在施加增益之后重组分解的图像，以获得与原始图像相同尺寸的增强图像。

8. 发明申请

US20090002968A1 APPARATUS FOR UNIVERSAL ELECTROMAGNETIC NAVIGATION TARGET FOR FLUOROSCOPIC SYSTEMS 失效
标题翻译：用于荧光系统通用电磁导航目标的装置
公开(公告)号：US20090002968A1
公开(公告)日：2009-01-01
申请号：US11768578
申请日：2007-06-26
申请人： Dun Alex Li , Richard Aufrichtig , Lonnie B. Weston , Peter Traneus Anderson
发明人： Dun Alex Li , Richard Aufrichtig , Lonnie B. Weston , Peter Traneus Anderson
IPC分类号： H05K9/00 , G01D18/00
CPC分类号： A61B6/12 , A61B6/06 , A61B6/4291 , A61B6/4441 , G21F3/00
摘要： Certain embodiments of the present invention provide a system for an electromagnetic shield assembly for use with C-arms. In an embodiment, the system may include a ring shield configured to encompass an x-ray detector. The ring shield may have a first window opening to receive x-rays. The system may also include a window shield configured to shield the first window opening of the ring shield. Certain embodiments of the present invention may provide a system for a universal navigation target. In an embodiment, the system may include a radiolucent calibration target and an electromagnetic shield. The electromagnetic shield may include a ring shield having a first window opening to receive x-rays and a window shield configured to shield the first window opening of the ring shield.
摘要翻译：本发明的某些实施例提供了一种用于与C型臂一起使用的电磁屏蔽组件的系统。在一个实施例中，系统可以包括被配置为包围x射线检测器的环形护罩。环形护罩可以具有接收x射线的第一窗口。系统还可以包括构造成屏蔽环形护罩的第一窗口的窗口屏蔽。本发明的某些实施例可以提供用于通用导航目标的系统。在一个实施例中，该系统可以包括射线可透性校准目标和电磁屏蔽。电磁屏蔽可以包括具有用于接收x射线的第一窗口开口的环形护罩和被配置为屏蔽环形护罩的第一窗口的窗口屏蔽件。

9. 发明授权

US07408168B1 Systems, methods and apparatus for adaptive cancellation of induced row noise in X-ray detector 有权
标题翻译：用于X射线探测器中感应行噪声自适应消除的系统，方法和装置
公开(公告)号：US07408168B1
公开(公告)日：2008-08-05
申请号：US11738440
申请日：2007-04-20
申请人： Richard Aufrichtig , John R Lamberty , Paul R. Granfors , Richard Cronce
发明人： Richard Aufrichtig , John R Lamberty , Paul R. Granfors , Richard Cronce
IPC分类号： G01T25/00
CPC分类号： G01T1/29
摘要： Systems, methods and apparatus are provided through which in some embodiments the line time of an X-Ray detector is dynamically selected so as to nullify an aliased interference signal. The frequency of a noise signal generated by a source external to the digital X-ray detector is determined and, based on the determined frequency, the line time of the digital X-ray is adjusted so as to compensate for the interfering noise. The frequency of the noise can be directly determined from an electromagnetic interference (EMI) sensor or derived through analysis of the power spectrum of the noise signal.
摘要翻译：提供了系统，方法和装置，在一些实施例中，动态地选择X射线检测器的线路时间，以便消除混叠的干扰信号。确定由数字X射线检测器外部的源产生的噪声信号的频率，并且基于确定的频率来调整数字X射线的行时间以补偿干扰噪声。噪声的频率可以直接由电磁干扰（EMI）传感器确定，或通过分析噪声信号的功率谱得出。

10. 发明授权

US07189972B2 X-ray detector with impact absorbing cover 有权
标题翻译：带有冲击吸收罩的X射线探伤仪
公开(公告)号：US07189972B2
公开(公告)日：2007-03-13
申请号：US10711763
申请日：2004-10-04
申请人： Jason R. Ertel , Richard Aufrichtig
发明人： Jason R. Ertel , Richard Aufrichtig
IPC分类号： G01T1/24
CPC分类号： G01T1/1644
摘要： The present invention is a directed to a cover assembly for an x-ray detector that incorporates impact-absorbing material designed to absorb the shock, vibration, stress, and strain placed on the detector when dropped or subjected to a load. The cover assembly may include a layer or inserts of impact-absorbing material. Bumpers of impact-absorbing material may also be secured to the x-ray detector cover. Viscoelastic foam or other plastics may be used as the impact-absorbing material.
摘要翻译：本发明涉及一种用于X射线检测器的盖组件，该组件包括冲击吸收材料，该冲击吸收材料被设计为当掉落或承受载荷时吸收放置在检测器上的冲击，振动，应力和应变。盖组件可以包括冲击吸收材料的层或插入物。冲击吸收材料的缓冲器也可以固定到X射线检测器盖。可以使用粘弹性泡沫或其它塑料作为冲击吸收材料。

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