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16 条记录 (耗时 0.011 秒)

    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

    申请人： Hanns-Ingo Maack ,  Ulrich Neitzel ,  Ingo Schafer

    发明人： Hanns-Ingo Maack ,  Ulrich Neitzel ,  Ingo Schafer

    IPC分类号： A61B6/00 ,  G01T1/29 ,  H04N5/208 ,  H04N5/32 ,  H04N7/18 ,  G03G13/044

    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）。

    Method of making a langbeinite slurry as a binder for MgO-containing fertilizers and fertilizers therefrom
    3.
    发明授权
    Method of making a langbeinite slurry as a binder for MgO-containing fertilizers and fertilizers therefrom 失效
    制备含铁蛋白浆的方法，用于含有MGO的肥料和其他肥料

    公开(公告)号：US5102441A

    公开(公告)日：1992-04-07

    申请号：US551551

    申请日：1990-07-11

    申请人： Helmut Zentgraf ,  Ulrich Neitzel

    发明人： Helmut Zentgraf ,  Ulrich Neitzel

    IPC分类号： C05D5/00 ,  C05D11/00

    CPC分类号： C05D5/00

    摘要： A process of making a granulated MgO-containing potassium salt fertilizer containing potassium sulfate, and having a high abrasion resistance and high compression resistance, includes preparing a langbeinite slurry binder without an evaporation of a magnesium chloride-containing solution with heating at a temperature of from 95.degree. to 110.degree. C. with a density of from 1.6 to 1.7 g/cm.sup.3, mixing the potassium salt and recyclable fines with the langbeinite at a temperature of from 75.degree. to 100.degree. C., granulating in a granulating drum, screening to form the fertilizer and recyclable fines; and recovery and recycle of the fines. The liquid langbeinite binder can be made by mixing a mixture of magnesium sulfate and/or kieserite with potassium sulfate, schoenite and/or leonite the potassium sulfate and the magnesium sulfate being present in a mole ratio of from 1:1.5 through 1:3 and heating the mixture to a temperature of 95.degree. to 110.degree. C. with a turbidity density of 1.6 to 1.7 g/cm.sup.3.

    摘要翻译： 制备含有硫酸钾的粒状含MgO的钾盐肥料，并且具有高耐磨性和高抗压性的方法包括在没有蒸发含氯化镁溶液的条件下制备无水浆料粘合剂，在 95〜110℃，密度为1.6〜1.7g / cm 3，在75〜100℃的温度下将钾盐和可回收粉末与兰贝氏体混合，在造粒鼓中成粒，筛选 形成肥料和可回收罚款; 并回收和回收罚款。 可以通过将硫酸镁和/或硅藻土的混合物与硫酸钾和硫酸钠和硫酸镁以硫酸钾和硫酸镁的摩尔比为1:1.5至1:3的比例混合来制备液体沸石粘合剂，以及 将混合物加热至95至110℃，浊度密度为1.6至1.7g / cm3。

    Two-dimensional compton profile imaging method
    4.
    发明授权
    Two-dimensional compton profile imaging method 失效
    二维柯顿轮廓成像方法

    公开(公告)号：US4850002A

    公开(公告)日：1989-07-18

    申请号：US92805

    申请日：1987-09-03

    申请人： Geoffrey Harding ,  Josef-Maria Kosanetzky ,  Ulrich Neitzel

    发明人： Geoffrey Harding ,  Josef-Maria Kosanetzky ,  Ulrich Neitzel

    IPC分类号： A61B6/00 ,  A61B6/02 ,  G01N23/20

    CPC分类号： A61B6/483 ,  G01N23/20066

    摘要： The invention relates to a method of determining the Compton profile of an object to be examined which is situated in an examination zone. The examination zone is irradiated by a monochromatic primary beam whose energy is chosen so that the attenuation of the primary radiation is due essentially only to the Compton Scattering. The scattered radiation is measured in an energy resolving manner and therefrom, as well as from the attenuation in the primary beam, the Compton profiles for the individual pixels in the examination zone are determined.

    摘要翻译： 本发明涉及一种确定位于检查区中的被检查物体的康普顿特征的方法。 检查区域被选择能量的单色主光束照射，使得主辐射的衰减基本上仅仅归因于康普顿散射。 散射的辐射是以能量分辨方式测量的，并且从主波束的衰减中测量出检查区域中各个像素的康普顿曲线。

    SYSTEM AND METHOD FOR FIXED FOCUS LONG FORMAT DIGITAL RADIOGRAPHY
    5.
    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

    申请人： Hanns-Ingo Maack ,  Ulrich Neitzel

    发明人： Hanns-Ingo Maack ,  Ulrich Neitzel

    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 displaying notably a digital X-ray image as a visible image, and device for carrying out the method
    6.
    发明授权
    Method of displaying notably a digital X-ray image as a visible image, and device for carrying out the method 失效
    将数字X射线图像作为可视图像显示的方法，以及用于执行该方法的装置

    公开(公告)号：US5550888A

    公开(公告)日：1996-08-27

    申请号：US427393

    申请日：1995-04-24

    申请人： Ulrich Neitzel ,  Hanss-Ingo Maack ,  Thomas Pralow

    发明人： Ulrich Neitzel ,  Hanss-Ingo Maack ,  Thomas Pralow

    IPC分类号： H04N7/18 ,  G06T1/00 ,  G06T5/00 ,  H05G1/64

    CPC分类号： G06T5/007

    摘要： The invention relates to a method of displaying a spatial distribution of notably an X-ray image whose pixels are associated with digital input image values, a filtering operation being performed on the input image values so as to obtain either low-pass or high-pass image values which are superposed on the input image values, and also relates to a device for carrying out the method. The invention enables the user to preset the contrast and the density of the visible image in conformity with his requirements and independently from one another.

    摘要翻译： 本发明涉及一种显示特别是其像素与数字输入图像值相关联的X射线图像的空间分布的方法，对输入图像值执行滤波操作以获得低通或高通 重叠在输入图像值上的图像值，并且还涉及用于执行该方法的装置。 本发明使用户能够根据他的要求并且彼此独立地预设可见图像的对比度和密度。

    Bone suppression in x-ray radiograms
    7.
    发明授权
    Bone suppression in x-ray radiograms 有权
    x线放射照片中的骨抑制

    公开(公告)号：US08903153B2

    公开(公告)日：2014-12-02

    申请号：US13517259

    申请日：2010-12-16

    申请人： Jens Von Berg ,  Ulrich Neitzel

    发明人： Jens Von Berg ,  Ulrich Neitzel

    IPC分类号： G06K9/00 ,  G06K9/34 ,  G06K9/40 ,  G06T7/00

    CPC分类号： G06T7/0083 ,  A61B6/5258 ,  G06T7/12 ,  G06T2207/10116 ,  G06T2207/30008

    摘要： The invention relates to a system (100) for extracting an object (Ob) from a source image, said object being delineated by a contour (C), the system (100) comprising a gradient unit (110) for computing the source image gradient field, based on the source image, a smoothing unit (120) for smoothing the source image gradient field, and an integration unit (130) for calculating an object image by integrating the smoothed source image gradient field, thereby extracting the object (Ob) from the source image. At each point of the source image, the smoothing is defined by a 2-dimensional convolution kernel which is a product of a first 1-dimensional convolution kernel in the first direction substantially parallel to the contour (C), and a second 1-dimensional convolution kernel in the second direction substantially normal to the contour (C). The first 1-dimensional convolution kernel defines smoothing within each region separated by the contour, while the second 1-dimensional convolution kernel defines smoothing across the contour separating two regions, independently of the orientation of the object and the contour curvature.

    摘要翻译： 本发明涉及一种用于从源图像提取对象（Ob）的系统（100），所述对象由轮廓（C）描绘，所述系统（100）包括梯度单元（110），用于计算源图像梯度 字段，基于源图像，平滑源图像梯度场的平滑单元（120），以及用于通过对平滑源图像梯度场进行积分来计算对象图像的积分单元（130），从而提取对象（Ob） 从源图像。 在源图像的每个点处，平滑由二维卷积核定义，二维卷积核是第一方向上基本上平行于轮廓（C）的第一一维卷积核的乘积，第二维 卷积核心在大致垂直于轮廓（C）的第二方向上。 第一个1维卷积内核定义在由轮廓分隔的每个区域内的平滑，而第二个1维卷积内核定义了分离两个区域的轮廓的平滑，独立于物体的方向和轮廓曲率。

    Method of dynamic range compression of an X-ray image and apparatus effectuating the method
    9.
    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

    申请人： Hanns-Ingo Maack ,  Ulrich Neitzel

    发明人： Hanns-Ingo Maack ,  Ulrich Neitzel

    IPC分类号： A61B6/00 ,  G06Q50/00 ,  G06T5/00 ,  H04N1/407 ,  H04N1/409 ,  G01N23/04

    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。