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1. 发明授权

US5642395A Imaging chain with miniaturized C-arm assembly for mobile X-ray imaging system 失效
标题翻译：成像链，具有用于移动X射线成像系统的小型C型臂组件
公开(公告)号：US5642395A
公开(公告)日：1997-06-24
申请号：US511755
申请日：1995-08-07
申请人： R. Larry Anderton , Steven E. Curtis , R. Bruce Spratt
发明人： R. Larry Anderton , Steven E. Curtis , R. Bruce Spratt
IPC分类号： A61B6/00 , A61B6/02 , H05G1/02
CPC分类号： A61B6/4441 , A61B6/4225
摘要： A miniaturized C-arm and imaging apparatus for use with X-ray diagnostic equipment and the like. An X-ray imaging system is coupled to a C-arm, including an X-ray source and an image receptor mounted upon opposing locations, respectively on the C-arm. The image receptor includes a vacuum bottle type image intensifier. The image receptor is characterized by an absence of fiber optic device, and the image intensifier is characterized by an absence of micro channels therein. The C-arm is mass balanced about an axis of orbital rotation and is pivotally coupled to an articulating arm assembly supported upon a wheeled support base. The mass balance enables repositioning of the X-ray imaging system between an anterior-posterior view and an orthogonal lateral view with a single, orbital movement of the C-arm which also causes the views to define an imaging isocenter. The C-arm is preferably miniaturized to an approximate outside diameter of twenty-eight inches with a source-to-image distance of approximately fourteen inches.
摘要翻译：一种用于X射线诊断设备等的小型C型臂和成像装置。 X射线成像系统耦合到C臂，其包括分别安装在C臂上的相对位置的X射线源和图像接收器。图像接收器包括真空瓶型图像增强器。图像接收器的特征在于不存在光纤设备，并且图像增强器的特征在于其中不存在微通道。 C形臂围绕轨道旋转的轴线质量平衡，并且枢转地联接到支撑在轮式支撑基座上的关节臂组件。质量平衡使得能够通过C形臂的单一轨道运动在前后视图和正交侧视图之间重新定位X射线成像系统，这也导致视图限定成像等角点。 C形臂优选地小型化为大约二十八英寸的外部直径，源到图像距离大约为十四英寸。

2. 发明授权

US07471768B2 Systems and methods for estimating presence of a material within a volume of interest using x-ray 有权
标题翻译：使用x射线估计感兴趣体积内的材料的存在的系统和方法
公开(公告)号：US07471768B2
公开(公告)日：2008-12-30
申请号：US11369420
申请日：2006-03-07
申请人： Steven E. Curtis , R. Larry Anderton
发明人： Steven E. Curtis , R. Larry Anderton
IPC分类号： H05G1/60 , H05G1/64
CPC分类号： G01N23/043 , A61B6/032 , A61B6/12 , A61B6/405 , A61B6/482 , A61B6/5258 , A61B6/544 , G01N2223/402 , G01T1/2985
摘要： Certain embodiments of the present invention provide a method for x-ray imaging including: exposing a volume of interest to a first technique level to obtain a first set of image data; exposing the volume of interest to a second technique level to obtain a second set of image data; and estimating whether the volume of interest includes a foreign object based at least in part on a comparison of at least an aspect of the first set of image data and at least an aspect of the second set of image data. According to an embodiment, one of the first and second technique levels is selected to generate x-rays having a higher average energy than the other of the first and second technique levels. According to an embodiment, at least one of the first and second technique levels is selectable to cause an overexposure. According to an embodiment, at least one of the first and second technique levels corresponds to a clinical technique level.
摘要翻译：本发明的某些实施例提供一种用于x射线成像的方法，包括：将感兴趣的体积暴露于第一技术水平以获得第一组图像数据; 将感兴趣的体积暴露于第二技术水平以获得第二组图像数据; 以及至少部分地基于所述第一组图像数据的至少一个方面与所述第二组图像数据的至少一个方面的比较来估计所述感兴趣的体积是否包括异物。根据实施例，选择第一和第二技术级别中的一个以产生具有比第一和第二技术级别中的另一个更高的平均能量的x射线。根据实施例，第一和第二技术级别中的至少一个可选择以引起过度曝光。根据实施例，第一和第二技术水平中的至少一个对应于临床技术水平。

3. 发明授权

US06788823B2 Method and apparatus for reducing motion artifacts and noise in video image processing 有权
标题翻译：用于减少视频图像处理中的运动伪像和噪声的方法和装置
公开(公告)号：US06788823B2
公开(公告)日：2004-09-07
申请号：US09999697
申请日：2001-10-26
申请人： Joseph Allred , R. Larry Anderton , Steven E. Curtis , Barry K. Hanover
发明人： Joseph Allred , R. Larry Anderton , Steven E. Curtis , Barry K. Hanover
IPC分类号： G06K900
CPC分类号： H04N5/21
摘要： A method and apparatus for reducing noise and motion artifacts in pixels of a processed or displayed video image by filtering pixel values of the video image based on a first frame having currently stored (filtered) pixel values and a second frame having recently captured but not yet filtered pixel values. The apparatus includes a spatial filter for computing a motion value of a pixel of interest by averaging difference values of selected pixels surrounding the pixel of interest. Also included is a filter function means for producing an output difference value of the pixel of interest based on the motion value and an adder for adding the output difference value to the first frame filtered pixel value of the pixel of interest. Thus, each pixel of the video image is filtered according to the amount of motion in the video image.
摘要翻译：一种通过基于具有当前存储的（滤波的）像素值的第一帧和最近被捕获但尚未到达的第二帧来滤除视频图像的像素值来减少处理或显示的视频图像的像素中的噪声和运动伪像的方法和装置滤波像素值。该装置包括空间滤波器，用于通过平均感兴趣像素周围的所选像素的差值来计算感兴趣像素的运动值。还包括用于基于运动值产生感兴趣像素的输出差值的滤波器功能装置和用于将输出差分值与感兴趣像素的第一帧滤波像素值相加的加法器。因此，根据视频图像中的运动量来对视频图像的每个像素进行滤波。

4. 发明授权

US06507638B2 X-ray imaging optical camera apparatus and method of use 有权
标题翻译： X射线成像光学相机装置及其使用方法
公开(公告)号：US06507638B2
公开(公告)日：2003-01-14
申请号：US09867820
申请日：2001-05-30
申请人： Steven E. Curtis , R. Larry Anderton
发明人： Steven E. Curtis , R. Larry Anderton
IPC分类号： H05G164
CPC分类号： A61B6/4225 , A61B6/4405 , H04N5/2254 , H04N5/32
摘要： An electronic video camera apparatus is provided for focusing light rays from object plane proximate image intensifier of a medical x-ray imaging system onto an image plane proximate a light sensor. The electronic video camera includes a lens system located between the object and image planes to focus light rays from the object plane onto the image plane. The light rays at the object plane are representative of a patient image. An optical filter is located between the object and image planes and partially blocks light rays passing there through. The optical filter includes at least first and second filter regions having different opacity. The first and second filter regions are alignable with the lens system at different times to block differing first and second amounts of light rays, respectively, associated with differing first and second x-ray amounts transmitted at different times.
摘要翻译：提供一种电子摄像机装置，用于将来自医学x射线成像系统的图像增强器附近的物平面的光线聚焦到靠近光传感器的图像平面上。电子摄像机包括位于物体和图像平面之间的透镜系统，以将来自物体平面的光线聚焦到像平面上。物平面处的光线代表患者图像。光学滤光器位于物体和图像平面之间，并且部分地阻挡通过其的光线。光学滤波器包括具有不同透明度的至少第一和第二滤光器区域。第一和第二过滤器区域可在不同时间与透镜系统对准，以分别阻止与在不同时间传输的不同的第一和第二X射线量相关的不同的第一和第二量的光线。

5. 发明授权

US06574307B1 Method and apparatus for enhancing the contrast of a medical diagnostic image that includes foreign objects 有权
标题翻译：用于增强包括异物的医学诊断图像的对比度的方法和装置
公开(公告)号：US06574307B1
公开(公告)日：2003-06-03
申请号：US09990643
申请日：2001-11-21
申请人： R. Larry Anderton
发明人： R. Larry Anderton
IPC分类号： H05G164
CPC分类号： G06T5/008 , G06T5/40 , G06T2207/10116 , G06T2207/30004
摘要： An x-ray system is provided utilizing an x-ray source and a detector to create x-ray data in a region of interest. The x-ray data comprises anatomic data, from the anatomy of a patient, and non-anatomic data, from a structure foreign to the patient. The anatomic and non-anatomic data may have non-overlapping grayscale distribution. A reject level is identified along the grayscale distribution. A processor module selects a minimum value for a transfer function based on the reject level and automatically calculates the transfer function to convert the x-ray data to display values. An x-ray image is then displayed based on the display values.
摘要翻译：利用x射线源和检测器来提供x射线系统以在感兴趣的区域中产生X射线数据。 x射线数据包括来自患者的解剖结构的解剖数据和来自外部结构的患者的结构的非解剖数据。解剖和非解剖数据可能具有不重叠的灰度分布。沿灰度分布识别出拒绝级别。处理器模块基于拒绝级别选择传递函数的最小值，并自动计算将x射线数据转换为显示值的传递函数。然后基于显示值显示X射线图像。

6. 发明授权

US5619261A Pixel artifact/blemish filter for use in CCD video camera 失效
标题翻译：用于CCD摄像机的像素伪影/瑕疵滤镜
公开(公告)号：US5619261A
公开(公告)日：1997-04-08
申请号：US279972
申请日：1994-07-25
申请人： R. Larry Anderton
发明人： R. Larry Anderton
IPC分类号： H04N5/367 , H04N9/64
CPC分类号： H04N5/3675
摘要： A pixel artifact/blemish filter for use in a CCD video camera which produces a video signal composed of a series of pulses, each representing a pixel, for developing a video image. The filter includes a delay line for receiving the video signal produced by the camera, and for delaying the video signal pulses by a time of approximately one pulse width duration. The filter also includes first and second signal transfer elements for receiving respectively each video signal pulse directly from the camera and each most recently delayed video signal, and for passing either the directly received pulse or the delayed pulse, depending upon the relative magnitude of the two pulses. Since pixel artifact pulses are typically more positive than non-artifacts pulses, the signal transfer elements generally pass the more negative video signal pulses so that the pixel artifact pulses are suppressed when they arrive at the transfer elements.
摘要翻译：一种用于CCD摄像机的像素伪影/瑕疵滤光器，其产生由一系列脉冲组成的视频信号，每个脉冲各自表示像素，用于显影视频图像。滤波器包括用于接收由相机产生的视频信号的延迟线，并且用于将视频信号脉冲延迟约一个脉冲宽度持续时间。滤波器还包括第一和第二信号传送元件，用于直接从照相机和每个最近延迟的视频信号分别接收每个视频信号脉冲，并且用于通过直接接收的脉冲或延迟脉冲，这取决于两者的相对幅度脉冲。由于像素伪影脉冲通常比非伪像脉冲更正，所以信号传送元件通常传递更多的负视频信号脉冲，使得像素伪影脉冲在它们到达传送元件时被抑制。

7. 发明授权

US06614877B2 Method and apparatus for enhancing the contrast of a medical diagnostic image acquired using collimation 有权
标题翻译：用于增强使用准直获得的医学诊断图像的对比度的方法和装置
公开(公告)号：US06614877B2
公开(公告)日：2003-09-02
申请号：US09991050
申请日：2001-11-21
申请人： R. Larry Anderton
发明人： R. Larry Anderton
IPC分类号： H05G164
CPC分类号： G06T5/008 , G06T5/40 , G06T2207/10116 , G06T2207/30004
摘要： An x-ray system that uses an x-ray source to irradiate a subject with x-rays is provided. A collimator is located proximate to the x-ray source and blocks a portion of the x-rays. A detector receives the x-rays and creates subject data indicative of a subject and collimator data indicative of a collimator. A position detector identifies a position of the collimator with respect to a field of view of the x-ray source. A gating module receives the subject and collimator data and passes at least a portion of the subject data. The gating module blocks at least a portion of the collimator data based on the position of the collimator. A display displays an x-ray image based on the portion of the subject data passed by the gating module.
摘要翻译：提供了使用X射线源以x射线照射被摄体的X射线系统。准直器位于x射线源附近并阻挡一部分x射线。检测器接收x射线并创建指示对象的被摄体数据和指示准直仪的准直仪数据。位置检测器识别准直仪相对于x射线源的视场的位置。门控模块接收对象和准直器数据，并传递主题数据的至少一部分。门控模块基于准直器的位置阻挡准直仪数据的至少一部分。显示器基于门控模块传递的被摄体数据的部分显示X射线图像。

8. 发明授权

US06175614B1 Method and apparatus for automatic sizing and positioning of ABS sampling window in an x-ray imaging system 有权
标题翻译：在x射线成像系统中自动调整和定位ABS采样窗的方法和装置
公开(公告)号：US06175614B1
公开(公告)日：2001-01-16
申请号：US09306908
申请日：1999-05-07
申请人： Vernon T. Jensen , R. Larry Anderton , Barry K. Hanover
发明人： Vernon T. Jensen , R. Larry Anderton , Barry K. Hanover
IPC分类号： H05G164
CPC分类号： H05G1/36
摘要： A method for providing automatic brightness control in a closed loop x-ray imaging system which utilizes an automatic brightness system (ABS) sampling window. The location, size and shape of the ABS sampling window is adjusted in accordance with statistical information including spatial gray scale distribution data derived from the data related to the x-ray system and image being processed, thereby enabling the automatic brightness control to make brightness and power adjustments in accordance with statistical data from the modified ABS sampling window.
摘要翻译：一种在采用自动亮度系统（ABS）采样窗口的闭环X射线成像系统中提供自动亮度控制的方法。 ABS采样窗口的位置，大小和形状根据与从X射线系统和正在处理的图像相关的数据导出的空间灰度分布数据的统计信息进行调整，从而使自动亮度控制能够使亮度和根据来自修改ABS采样窗口的统计数据进行功率调整。

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