Arrangement for producing X-ray images
    1.
    发明授权
    Arrangement for producing X-ray images 失效
    产生X射线图像的安排

    公开(公告)号:US5280512A

    公开(公告)日:1994-01-18

    申请号:US893140

    申请日:1992-06-03

    CPC分类号: H04N5/32 G01T1/2014

    摘要: The invention relates to an arrangement for producing X-ray images, which arrangement comprises an X-ray source (1) for the generation of an X-ray beam (10), a layer (41) sensitive to X-rays and situated on a cylindrical drum (4), and a read unit (5) for converting the X-ray image detected in the layer into electrical image values. In order to improve the X-ray images which can be produced by the arrangement an image processor (21) includes a module (212) for transforming the X-ray image (I) situated on the layer into an X-ray image (I.sub.v) situated in a virtual plane (12), and a module (211) for improving the uniformity of the modulation transfer function (MTF) over the X-ray image produced.

    摘要翻译: 本发明涉及使用X射线机(1)产生X射线照片的装置,以产生一束X射线(10),位于圆柱形鼓(4)上的层(9)和敏感的 以及用于将在该层中检测到的X射线图像转换成电图像值的读出单元(5)。 为了改善以这种方式可以实现的X射线照片,提供了将位于层上的X射线图像(I)变换成X射线照片(21,211)的装置(21,211) Iv),并且提供了增强X射线照片(Iv)中心的调制传输功能的滤波器装置(21; 110-119)。

    SYSTEM AND METHOD FOR FIXED FOCUS LONG FORMAT DIGITAL RADIOGRAPHY
    2.
    发明申请
    SYSTEM AND METHOD FOR FIXED FOCUS LONG FORMAT DIGITAL RADIOGRAPHY 审中-公开
    固定长焦数字数字放映的系统和方法

    公开(公告)号:US20100138044A1

    公开(公告)日:2010-06-03

    申请号:US12063237

    申请日:2006-08-01

    IPC分类号: G01T1/161 G05B15/02

    CPC分类号: A61B6/5241 A61B6/00

    摘要: An X-ray imaging system comprising a motorised X-ray tube located at a fixed focus position (12) relative to an object (14) to be imaged, and a motorised detector (18) for detecting the intensity distribution of radiation transmitted through the object. A control system (22) is provided for calculating two or more angles (Ot1) from which the object (14) should be exposed to radiation in order to cover the entire exposure field (H) occupied by the object (14) and for causing the X-ray tube to be rotated around the fixed focus position (12) so as to expose the object (14) to radiation from each of the respective angles (Ot1). The movement of the detector (18) is also performed automatically so as to correspond with the exposure angles so as to create two or more respective images of respective regions of the object (14) which can be subsequently stitched together to create a complete image thereof.

    摘要翻译: 一种X射线成像系统,包括相对于待成像的物体(14)位于固定焦点位置(12)处的电动X射线管,以及用于检测通过所述成像的物体(14)的强度分布的电动检测器(18) 目的。 提供控制系统(22),用于计算物体(14)应暴露于辐射的两个或更多个角度(Ot1),以覆盖由物体(14)占据的整个曝光场(H)并引起 所述X射线管围绕所述固定聚焦位置(12)旋转,以使所述物体(14)暴露于各角度(Ot1)中的每一个的辐射。 检测器(18)的移动也被自动执行以便与曝光角度对应,以便产生对象(14)的各个区域的两个或更多个相应的图像,该图像可随后被缝合在一起以产生其完整图像 。

    Method of dynamic range compression of an X-ray image and apparatus
effectuating the method
    3.
    发明授权
    Method of dynamic range compression of an X-ray image and apparatus effectuating the method 失效
    X射线图像的动态范围压缩方法和实现该方法的装置的方法

    公开(公告)号:US5357549A

    公开(公告)日:1994-10-18

    申请号:US781534

    申请日:1991-10-22

    CPC分类号: H04N1/4092 H04N1/4072

    摘要: The dynamic range of density or intensity values of pixels in an X-ray image is compressed in a manner preserving the range which is of primary interest for diagnosis, while still allowing recognition of detailed structure in the further ranges. This is accomplished by forming low-pass picture values (L) from input-picture values (E), determining equalizing values as a function (C) of the low-pass picture values (L) and forming output picture values by superposition of the input-picture values (E) and the equalizing values (C) . The equalizing values are chosen such that the output picture values are greater than the input-picture values (E) at relatively small low-pass picture values (L), below the range of primary interest, and the output picture values are less than the input-picture values at relatively large low-pass picture values (L), above the range of primary interest. Further, the output picture values substantially equal the input picture values for low-mass picture values (L) within the range of primary interest for diagnosis.

    摘要翻译: X射线图像中的像素的密度或强度值的动态范围以保持主要感兴趣的诊断范围的方式进行压缩,同时仍允许在更远的范围内识别详细的结构。 这是通过从输入图像值(E)形成低通图像值(L),确定作为低通图像值(L)的函数(C)的均衡值来实现的,并且通过叠加 输入图像值(E)和均衡值(C)。 选择均衡值使得输出图像值大于低于主要感兴趣的范围的相对小的低通图像值(L)的输入图像值(E),并且输出图像值小于 相对较大的低通图像值(L)的输入图像值高于主要感兴趣的范围。 此外,输出图像值基本上等于用于诊断的主要感兴趣的范围内的低质量图像值(L)的输入图像值。

    X-ray device with a storage for X-ray exposure parameters
    4.
    发明授权
    X-ray device with a storage for X-ray exposure parameters 失效
    具有用于X射线曝光参数的存储的X射线设备

    公开(公告)号:US06920201B2

    公开(公告)日:2005-07-19

    申请号:US10318739

    申请日:2002-12-13

    CPC分类号: A61B6/542 A61B6/00 A61B6/06

    摘要: The invention relates to an X-ray device in which a set of exposure parameters is fetched from among a number of such sets stored in a first storage arrangement for APR X-ray exposures. The exposure parameters which result therefrom during the subsequent X-ray exposure and have possibly been modified by the user are stored in a second storage arrangement. The X-ray device includes means for evaluating the second sets of exposure parameters which are associated with the same first set of exposure parameters and for deriving therefrom a new set of exposure parameters which is stored in the first storage arrangement instead of the first set of exposure parameters and forms the basis for APR X-ray exposures from then on.

    摘要翻译: 本发明涉及一种X射线装置,其中从存储在用于APR X射线曝光的第一存储装置中的多个这样的组中取出一组曝光参数。 在随后的X射线曝光期间由其产生并且可能被用户修改的曝光参数存储在第二存储装置中。 X射线装置包括用于评估与第一组曝光参数相关联的第二组曝光参数的装置,并且用于从其中导出存储在第一存储装置中而不是第一组曝光参数的一组新的曝光参数 暴露参数并形成APR X射线曝光的基础。

    Method of generating X-ray images and device suitable for carrying out
the method
    5.
    发明授权
    Method of generating X-ray images and device suitable for carrying out the method 失效
    产生X射线图像的方法和适用于执行该方法的装置

    公开(公告)号:US5341409A

    公开(公告)日:1994-08-23

    申请号:US20499

    申请日:1993-02-22

    CPC分类号: G01T1/26

    摘要: The invention relates to a method of generating X-ray images by means of a photoconductor which is provided on a conductive substrate and whose surface potential can be read by means of probes, and also relates to a device suitable for carrying out the method. In order to avoid image artefacts which could be caused by deviating sensitivities of the probes or by frequency-dependent distortions, after the charging of the photoconductor the substrate potential is varied during a test phase. Test data is generated which correspond to the spatial or temporal variation of the potential on the surface of the photoconductor; from this test data there is formed correction data which is stored in order to correct the image data of a subsequent X-ray exposure.

    摘要翻译: 本发明涉及一种通过设置在导电性基板上的感光体产生X射线图像的方法,其能够通过探针读取其表面电位,并且还涉及适用于实施该方法的装置。 为了避免可能由探针的灵敏度偏差或频率相关失真引起的图像伪影,在光电导体的充电之后,衬底电位在测试阶段变化。 产生对应于光电导体表面上的电位的空间或时间变化的测试数据; 根据该测试数据,形成校正数据,以便校正随后的X射线曝光的图像数据。

    Frequency dependent combination of X-ray images of different modalities
    6.
    发明授权
    Frequency dependent combination of X-ray images of different modalities 有权
    频率依赖组合的X射线图像的不同形式

    公开(公告)号:US09472007B2

    公开(公告)日:2016-10-18

    申请号:US14236668

    申请日:2012-07-27

    摘要: In phase-contrast imaging, different types of image information, such as absorption image information and differential phase-contrast image information, may be obtained by a single image acquisition process and have different image properties. A frequency dependent combination of different types of image information is obtained, the combined image having improved properties over the image information and respective image information types. Accordingly, an apparatus and a method for image processing in X-ray imaging of an object is provided, including receiving first and second image information of the object of first and second image information types, respectively, where the second image information type is different from the first image information type. The first and second image information is combined to obtain combined image information of the object, where the combined image information is frequency-dependent, depending on spatial frequencies of the first and second image information, respectively.

    摘要翻译: 在相位对比成像中,通过单个图像获取处理可以获得不同类型的图像信息,例如吸收图像信息和差分相位对比度图像信息,并具有不同的图像特性。 获得不同类型的图像信息的频率相关组合,该组合图像具有比图像信息和各个图像信息类型更好的特性。 因此,提供了一种用于对象的X射线成像中的图像处理的装置和方法,包括分别接收第一和第二图像信息类型的对象的第一和第二图像信息,其中第二图像信息类型不同于 第一种图像信息类型。 组合第一和第二图像信息以分别取决于第一和第二图像信息的空间频率来获得组合的图像信息是频率相关的对象的组合图像信息。

    X-RAY IMAGE APPARATUS AND DEVICE FOR AND METHOD OF CALIBRATING AN X-RAY IMAGE APPARATUS
    7.
    发明申请
    X-RAY IMAGE APPARATUS AND DEVICE FOR AND METHOD OF CALIBRATING AN X-RAY IMAGE APPARATUS 失效
    X射线图像装置和用于校准X射线图像装置的装置和方法

    公开(公告)号:US20090245473A1

    公开(公告)日:2009-10-01

    申请号:US12302899

    申请日:2007-05-22

    IPC分类号: G01D18/00

    CPC分类号: A61B6/583 G01N2223/303

    摘要: A calibration device (140) for calibrating an X-ray image apparatus is described (100), the device (140) comprising a receiving unit (200) for receiving an image captured by a detection unit (108) of the X-ray image apparatus (100) under reference conditions, an analyzing unit (201) for analyzing the captured image to derive gain correction information, and a calibration unit (202) for providing calibrating information for calibrating the X-ray image apparatus (100) based on the derived gain correction information disregarding gain correction of a heel effect.

    摘要翻译: (100)描述了用于校准X射线图像装置的校准装置(140),所述装置(140)包括用于接收由X射线图像的检测单元(108)捕获的图像的接收单元(200) 设备(100),用于分析所获取的图像以得到增益校正信息的分析单元(201),以及用于提供用于校准X射线图像设备(100)的校准信息的校准单元(202),基于 导出的增益校正信息,而不考虑脚跟效应的增益校正。

    PORTABLE X-RAY DETECTOR UNIT
    8.
    发明申请
    PORTABLE X-RAY DETECTOR UNIT 有权
    便携式X射线探测器单元

    公开(公告)号:US20090122960A1

    公开(公告)日:2009-05-14

    申请号:US11577831

    申请日:2005-10-25

    IPC分类号: H05G1/38

    CPC分类号: A61B6/4411 A61B6/00 A61B6/542

    摘要: A portable X-ray detector unit comprising a portable, hand-held cassette (10) having a plurality of exposure detection fields (identified by markings (12)) for measuring the level of radiation to which a subject to be imaged is exposed. Automatic exposure control means (26), for terminating radiation supply to the subject (4) when it is determined that the level of exposure exceeds a predetermined threshold, are interpreted in the portable detector unit, and a user-interface (16, 18) is provided to control the exposure detection fields (12) and/or the control means (26).

    摘要翻译: 一种便携式X射线检测器单元,包括具有多个曝光检测场(由标记(12)识别)的便携式手提盒,用于测量被成像对象所暴露的辐射水平。 自动曝光控制装置(26)在便携式检测器单元中被解释为用于在确定暴露程度超过预定阈值时终止对被摄体(4)的辐射供给,以及用户界面(16,18) 被提供以控制曝光检测区域(12)和/或控制装置(26)。

    Software-Controlled Mechanical Lock for Portable Electronic Devices
    9.
    发明申请
    Software-Controlled Mechanical Lock for Portable Electronic Devices 审中-公开
    便携式电子设备的软件控制机械锁

    公开(公告)号:US20080209965A1

    公开(公告)日:2008-09-04

    申请号:US11995713

    申请日:2006-07-18

    申请人: Hanns-Ingo Maack

    发明人: Hanns-Ingo Maack

    IPC分类号: E05B73/00

    摘要: A security system for preventing unauthorised removal of a portable electronic device, such as a portable X-ray detector (106) or the like, from a docking station (100). The docking station (100) is provided with an electromagnetic lock (102) which is activated by means of a software command (112) issued by a screensaver function (110) running on a remote host PC (108). When triggered after some predetermined period of user inactivity, the screensaver function (110) locks the screen and keyboard of the host PC (108) to prevent unauthorised use thereof, and also issues the above-mentioned software command (112) to activate the electromagnetic lock (102) and prevent removal of the detector (106) from the docking station (100).

    摘要翻译: 一种用于防止从对接站(100)未经授权地移除便携式电子设备(例如便携式X射线检测器(106)等)的安全系统。 对接站(100)设置有电磁锁(102),其通过由在远程主机PC(108)上运行的屏保功能(110)发出的软件命令(112)来激活。 当在用户不活动的某个预定时间段之后被触发时,屏幕保护功能(110)锁定主机PC(108)的屏幕和键盘以防止其未经授权的使用,并且还发出上述软件命令(112)来激活电磁 锁定(102)并且防止从对接站(100)移除检测器(106)。

    ADAPTING AN X-RAY SLAVE IMAGE TO AN X-RAY MASTER IMAGE
    10.
    发明申请
    ADAPTING AN X-RAY SLAVE IMAGE TO AN X-RAY MASTER IMAGE 有权
    将X-RAY从属图像适用于X射线主图像

    公开(公告)号:US20150015601A1

    公开(公告)日:2015-01-15

    申请号:US14344625

    申请日:2012-09-13

    申请人: Hanns-Ingo Maack

    发明人: Hanns-Ingo Maack

    IPC分类号: G09G5/02 G06T5/40

    摘要: A device 16 for displaying X-ray images, the device comprises a display 20 for displaying an X-ray image, a workstation 22 for processing image data and a user interface 24 for receiving commands from a user of the device. The user interface 24 is adapted for allowing the user to select a master image 34a and a slave image 34b from a plurality of images. The workstation 22 is adapted for transforming the slave image 34b by generating a color transformation 40 based on the master image 34a and the slave image 34b for optically adapting the slave image to the master image and by applying the color transformation 40 to the slave image 34b. The display 20 is adapted for displaying the transformed slave image 42.

    摘要翻译: 用于显示X射线图像的设备16,该设备包括用于显示X射线图像的显示器20,用于处理图像数据的工作站22和用于从设备的用户接收命令的用户界面24。 用户接口24适于允许用户从多个图像中选择主图像34a和从图像34b。 工作站22适于通过基于主图像34a和从属图像34b生成颜色变换40来变换从属图像34b,用于将从属图像光学地适配于主图像,并且通过将颜色变换40应用于从图像34b 。 显示器20适于显示变换的从属图像42。