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。

公开(公告)号：US20080192899A1

公开(公告)日：2008-08-14

申请号：US12029597

申请日：2008-02-12

申请人： Kenneth S. Kump ,  James Z. Liu

发明人： Kenneth S. Kump ,  James Z. Liu

IPC分类号： G01D18/00

CPC分类号： A61B6/542 ,  A61B6/4291 ,  A61B6/4405 ,  A61B6/583 ,  H04N5/32 ,  H04N5/3651 ,  H04N5/367

摘要： A process of data calibration and correction is disclosed that utilizes feedback from a temperature sensor of an x-ray detector to isolate or otherwise select an appropriate calibration or correction map that is specific to the temperature of the x-ray detector during data acquisition. The method is also designed to take into account changes in power transients of an x-ray detector between the acquisition of imaging data and the acquisition of offset data. The method is particularly applicable in optimally selecting and applying gain correction, conversion factor, bad pixel, and offset calibrations.

摘要翻译： 公开了一种数据校准和校正过程，其利用来自X射线检测器的温度传感器的反馈来隔离或以其他方式选择在数据采集期间特定于x射线检测器的温度的适当的校准或校正图。 该方法还被设计为考虑在获取成像数据和获取偏移数据之间X射线检测器的功率瞬变的变化。 该方法特别适用于最佳选择和应用增益校正，转换因子，不良像素和偏移校准。

公开(公告)号：US07381964B1

公开(公告)日：2008-06-03

申请号：US10905935

申请日：2005-01-27

申请人： Kenneth S. Kump ,  James Z. Liu

发明人： Kenneth S. Kump ,  James Z. Liu

IPC分类号： G01T1/20

CPC分类号： A61B6/542 ,  A61B6/4291 ,  A61B6/4405 ,  A61B6/583 ,  H04N5/32 ,  H04N5/3651 ,  H04N5/367

摘要： A process of data calibration and correction is disclosed that utilizes feedback from a temperature sensor of an x-ray detector to isolate or otherwise select an appropriate calibration or correction map that is specific to the temperature of the x-ray detector during data acquisition. The method is also designed to take into account changes in power transients of an x-ray detector between the acquisition of imaging data and the acquisition of offset data. The method is particularly applicable in optimally selecting and applying gain correction, conversion factor, bad pixel, and offset calibrations.

摘要翻译： 公开了一种数据校准和校正过程，其利用来自X射线检测器的温度传感器的反馈来隔离或以其他方式选择在数据采集期间特定于x射线检测器的温度的适当的校准或校正图。 该方法还被设计为考虑在获取成像数据和获取偏移数据之间X射线检测器的功率瞬变的变化。 该方法特别适用于最佳选择和应用增益校正，转换因子，不良像素和偏移校准。

公开(公告)号：US07315026B2

公开(公告)日：2008-01-01

申请号：US11063909

申请日：2005-02-22

申请人： James Z. Liu ,  Olgun Kukrer ,  Kenneth S. Kump

发明人： James Z. Liu ,  Olgun Kukrer ,  Kenneth S. Kump

IPC分类号： G01T1/24

CPC分类号： G01T1/2018 ,  G01T1/24

摘要： Certain embodiments of the present invention include a method, system, and apparatus for improved stabilization in solid state x-ray detectors. A method for detecting x-rays includes providing a top layer including an exterior surface and interior surface. The interior surface of the top layer is substantially electrically non-dissipative. The method also includes providing an electrical ground path and an electrically dissipative layer adjacent to the interior surface of the top layer. The electrically dissipative layer is capable of facilitating discharge of static charge from the interior surface of the top layer to the electrical ground path.

摘要翻译： 本发明的某些实施例包括用于改善固态X射线检测器稳定性的方法，系统和装置。 一种用于检测x射线的方法包括提供包括外表面和内表面的顶层。 顶层的内表面基本上是非耗散的。 该方法还包括提供邻近顶层内表面的电接地路径和电耗散层。 电耗层能够促进静电从顶层的内表面到电接地路径的放电。

公开(公告)号：US07127032B1

公开(公告)日：2006-10-24

申请号：US11379685

申请日：2006-04-21

申请人： Kenneth S. Kump

发明人： Kenneth S. Kump

IPC分类号： H05G1/26

CPC分类号： G01T1/2018 ,  A61B6/102 ,  A61B6/4283 ,  A61B6/4405 ,  G01N23/04

摘要： A method and system of electronically detecting and measuring gravitational loads placed on an x-ray detector is disclosed. An x-ray detector incorporates an accelerometer that detects and provides an output as to the extent of gravitational loads or forces placed thereon. The accelerometer may also time and/or date stamp each recorded event such that a technician may determine when the x-ray detector was subjected to a particular load. A microcontroller/microprocessor may also compare a current reading of the accelerometer to a threshold and, based on the comparison, provide an audio or visual indication that the x-ray detector has been subjected to a potentially damaging gravitational load.

摘要翻译： 公开了一种电子检测和测量放置在X射线检测器上的重力负载的方法和系统。 X射线检测器包括加速度计，其检测并提供关于放置在其上的重力载荷或力的程度的输出。 加速度计还可以对每个记录的事件进行时间和/或日期记录，使得技术人员可以确定X射线检测器何时经受特定负载。 微控制器/微处理器还可以将加速度计的当前读数与阈值进行比较，并且基于比较，提供X射线检测器已经经受潜在的有害的重力负载的音频或视觉指示。

公开(公告)号：US06663281B2

公开(公告)日：2003-12-16

申请号：US09682591

申请日：2001-09-25

申请人： Richard Aufrichtig ,  Paul R. Granfors ,  Gerhard Brunst ,  Kenneth S. Kump

发明人： Richard Aufrichtig ,  Paul R. Granfors ,  Gerhard Brunst ,  Kenneth S. Kump

IPC分类号： G01D1800

CPC分类号： H04N5/2178 ,  G09G2320/0693 ,  G09G2330/08 ,  G09G2330/10 ,  H04N5/32

摘要： An x-ray system (14) including a source of x-rays (15) and a detector (22) monitors the detector with a control (36) that calibrates the detector during a calibration phase of operation and powers the detector during use phases of operation occurring at different times. A processor (28, 36) reads the data created by the pixel elements, analyzes the data and identifies pixel elements corresponding to data indicating defective pixel elements during the calibration phase of operation and during a predetermined portion of a plurality of the use phases of operation.

摘要翻译： 包括X射线源（15）和检测器（22）的X射线系统（14）利用控制器（36）对检测器进行监视，该控制器在校准操作阶段期间对检测器进行校准，并在使用阶段为检测器供电 的操作发生在不同的时间。 处理器（28,36）读取由像素元素创建的数据，分析数据并且在操作的校准阶段期间和在多个使用操作阶段的预定部分期间识别与指示缺陷像素元素的数据相对应的像素元素 。

公开(公告)号：US06488409B1

公开(公告)日：2002-12-03

申请号：US09681785

申请日：2001-06-05

申请人： Habib Vafi ,  Farshid Farrokhnia ,  Donald F. Langler ,  Kenneth S. Kump

发明人： Habib Vafi ,  Farshid Farrokhnia ,  Donald F. Langler ,  Kenneth S. Kump

IPC分类号： G01D1800

CPC分类号： A61B6/583

摘要： An x-ray system (10) include a digital detector (400) that defines two regions: a first region (404) suitable for generating data useful for creating a patient x-ray image and a second region (406) less suitable for generating such data than the first region. A source (20) transmits x-rays through a phantom (420) located between the source and the second region (406) so that the detector (400) generates test data in the second region. A processor (302) measures at least one parameter in response to the test data and stores a value of the parameter at one point of time. The processor compares the first value with a second value of the one parameter generated at a later second point in time. The processor also generates a result signal representing the results of the comparison.

摘要翻译： x射线系统（10）包括限定两个区域的数字检测器（400）：适于生成有用于产生患者x射线图像的数据的第一区域（404）和不太适于产生的第二区域（406） 这样的数据比第一个区域。 源（20）通过位于源极和第二区域（406）之间的体模（420）透射x射线，使得检测器（400）在第二区域中产生测试数据。 处理器（302）响应于测试数据测量至少一个参数，并且在一个时间点存储参数的值。 处理器将第一值与在稍后的第二时间点产生的一个参数的第二值进行比较。 处理器还产生表示比较结果的结果信号。