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12 条记录 (耗时 0.018 秒)

    Nuclear magnetic resonance imaging apparatus
    5.
    发明授权
    Nuclear magnetic resonance imaging apparatus 失效
    核磁共振成像装置

    公开(公告)号：US4644278A

    公开(公告)日：1987-02-17

    申请号：US694743

    申请日：1985-01-25

    申请人： Koichi Sano ,  Tetsuo Yokoyama ,  Shimbu Yamagata ,  Koichi Haruna

    发明人： Koichi Sano ,  Tetsuo Yokoyama ,  Shimbu Yamagata ,  Koichi Haruna

    IPC分类号： A61B10/00 ,  A61B5/055 ,  G01R33/48 ,  G01R33/561 ,  G06T1/00 ,  G01R33/20

    CPC分类号： G01R33/561

    摘要： An NMR imaging apparatus is disclosed, which comprises imaging means for measuring a cross section of an object to be inspected with a high speed and for reconstructing an image of said cross section, means for specifying a region of interest in the image of the object to be inspected thus reconstructed by said imaging means, and gradient magnetic field control means for controlling a gradient of a magnetic field so that the gradient of the magnetic field at the specified region of interest is substantially greater than that at the other regions, whereby an enlarged image with high image quality at the region of interest is obtained by reconstructing an image of said region of interest after having raised the gradient of the magnetic field at least at said region of interest by means of said gradient magnetic field control means.

    摘要翻译： 公开了一种NMR成像装置，其包括：成像装置，用于以高速度测量待检查对象的横截面，并重建所述横截面的图像，用于将对象的图像中的感兴趣区域指定为 由所述成像装置重新检查，以及用于控制磁场梯度的梯度磁场控制装置，使得在特定感兴趣区域的磁场梯度大大大于其他区域的磁场梯度，由此增大 通过利用所述梯度磁场控制装置至少在所述感兴趣区域提高磁场的梯度后，通过重建所述感兴趣区域的图像来获得感兴趣区域具有高图像质量的图像。

    Method and apparatus for high resolution nuclear magnetic resonance imaging
    6.
    发明授权
    Method and apparatus for high resolution nuclear magnetic resonance imaging 失效
    用于高分辨率核磁共振成像的方法和装置

    公开(公告)号：US4724387A

    公开(公告)日：1988-02-09

    申请号：US792273

    申请日：1985-10-28

    申请人： Koichi Sano ,  Shimbu Yamagata ,  Hideaki Koizumi

    发明人： Koichi Sano ,  Shimbu Yamagata ,  Hideaki Koizumi

    IPC分类号： A61B10/00 ,  A61B5/055 ,  G01R33/48 ,  G01R33/54 ,  G01R33/56 ,  G01R33/20

    CPC分类号： G01R33/4833 ,  G01R33/56

    摘要： In a nuclear magnetic resonance imaging method and apparatus, the center position of each of a plurality of gradient magnetic fields are controlled to shift the positions of sampling points in a plurality of reconstructed images of the same part so that they do not overlap with each other in a sampling interval. As the result, the number of sampling points is effectively increased, thereby increasing the spacial resolving power of reconstructed images by NMR signals.

    摘要翻译： 在核磁共振成像方法和装置中，控制多个梯度磁场中的每一个的中心位置以移动同一部分的多个重建图像中的采样点的位置，使得它们彼此不重叠 在采样间隔。 结果，采样点的数量有效地增加，从而通过NMR信号增加重构图像的空间分辨能力。

    Imaging region-of-interest in medical NMR observation
    7.
    发明授权
    Imaging region-of-interest in medical NMR observation 失效
    医学NMR观察中的成像感兴趣区域

    公开(公告)号：US4607222A

    公开(公告)日：1986-08-19

    申请号：US578790

    申请日：1984-02-10

    申请人： Tetsuo Yokoyama ,  Koichi Morishita ,  Koichi Sano ,  Shimbu Yamagata ,  Akira Ogushi

    发明人： Tetsuo Yokoyama ,  Koichi Morishita ,  Koichi Sano ,  Shimbu Yamagata ,  Akira Ogushi

    IPC分类号： A61B10/00 ,  A61B5/055 ,  G01R33/36 ,  G01R33/48 ,  G01R33/561 ,  G01R33/20

    CPC分类号： G01R33/3621 ,  G01R33/561

    摘要： A step of changing the frequency of a rotational field for nuclear magnetic resonance measurement of a medical nuclear magnetic resonance imaging apparatus is set to be smaller in a region of interest in a cross-section of an object to be examined than that in regions of less interest. In the less interesting regions of less interest, the spatial sampling interval is made large and an interpolating calculation is performed for the obtained projection data to provide data at the same spatial interval. The image reconstruction can be performed using an ordinary image reconstruction algorithm.

    摘要翻译： 将待检查物体的横截面中感兴趣的区域中的医疗核磁共振成像装置的核磁共振测量的旋转场的频率改变的步骤设定为小于在较小的区域 利益。 在较不感兴趣的较不感兴趣的区域中，空间采样间隔变大，并且对于所获得的投影数据执行内插计算，以在相同的空间间隔提供数据。 可以使用普通图像重建算法来执行图像重建。

    System of automatically measuring sectional shape
    8.
    发明授权
    System of automatically measuring sectional shape 失效
    自动测量截面形状的系统

    公开(公告)号：US4725730A

    公开(公告)日：1988-02-16

    申请号：US770244

    申请日：1985-08-28

    申请人： Makoto Kato ,  Tetsuo Yokoyama ,  Juntaro Arima ,  Shimbu Yamagata ,  Toshihiro Furuya

    发明人： Makoto Kato ,  Tetsuo Yokoyama ,  Juntaro Arima ,  Shimbu Yamagata ,  Toshihiro Furuya

    IPC分类号： H01J37/22 ,  G01B15/00 ,  G01B15/04 ,  G01N23/00

    CPC分类号： H01J37/28 ,  G01B15/04

    摘要： A stereoscopic measuring method and system for measuring the sectional shape of a step formed object such as a semiconductor element carrying a resist and wiring on a wafer. The method and system comprises the steps of means for detecting the images of the step formed object from at least two directions so as to form pictures corresponding to the images detected from different directions, determining the distances D between the upper and lower edges of a step in respective pictures; determining the angles .theta. of inclination of the edge lines with respect to the axis of the pictures, determining the angles of inclination of the standard plane fixed to the step formed object with respect to the viewing directions, and determining, as significant factors of the shape to be determined, the height H and width W of the step formed object.

    摘要翻译： 一种立体测量方法和系统，用于测量诸如在晶片上携带抗蚀剂和布线的半导体元件的阶梯形成物体的截面形状。 该方法和系统包括以下步骤：用于从至少两个方向检测阶梯形成物体的图像的装置，以便形成与从不同方向检测到的图像相对应的图像，确定步骤的上边缘和下边缘之间的距离D 在各自的图片; 确定边缘线相对于图像的轴线的倾斜角θ，确定相对于观察方向固定到台阶形成物体的标准平面的倾斜角度，以及确定形状的重要因素 要确定台阶形成物体的高度H和宽度W.

    Unsharp masking for image enhancement
    9.
    发明授权
    Unsharp masking for image enhancement 失效
    用于图像增强的锐化掩蔽

    公开(公告)号：US4794531A

    公开(公告)日：1988-12-27

    申请号：US41627

    申请日：1987-04-22

    申请人： Koichi Morishita ,  Shimbu Yamagata ,  Tetsuo Okabe ,  Tetsuo Yokoyama ,  Kazuhiko Hamatani

    发明人： Koichi Morishita ,  Shimbu Yamagata ,  Tetsuo Okabe ,  Tetsuo Yokoyama ,  Kazuhiko Hamatani

    IPC分类号： G06T5/20 ,  G06F15/68

    CPC分类号： G06T5/004 ,  G06T5/20

    摘要： In an unsharp masking processing for sharpening images such as radiographic images, an emphasizing coefficient of an image and parameters for real-time change of picture quality are set interactively. The entire image is divided into a plurality of regional images and filtering optimized for each pixel image is effected using a standard deviation computed for each regional image and a density difference between pixel images.

    摘要翻译： 在用于锐化诸如放射线照相图像的图像的不清晰的掩蔽处理中，交互地设置图像的强调系数和用于画面质量的实时改变的参数。 整个图像被分成多个区域图像，并且使用针对每个区域图像计算的标准偏差和像素图像之间的密度差来实现针对每个像素图像优化的滤波。

    Sample surface structure measuring method
    10.
    发明授权
    Sample surface structure measuring method 失效
    样品表面结构测量方法

    公开(公告)号：US4733074A

    公开(公告)日：1988-03-22

    申请号：US852741

    申请日：1986-04-16

    申请人： Makoto Kato ,  Tetsuo Yokoyama ,  Jyuntaro Arima ,  Shimbu Yamagata ,  Mikihiko Oi ,  Toshihiro Furuya

    发明人： Makoto Kato ,  Tetsuo Yokoyama ,  Jyuntaro Arima ,  Shimbu Yamagata ,  Mikihiko Oi ,  Toshihiro Furuya

    IPC分类号： G01B15/04 ,  H01J37/28 ,  H01J37/00

    CPC分类号： G01B15/04 ,  H01J37/28

    摘要： A sample surface structure measuring method using a scanning type electron microscope featured by scanning the sample surface by an electron beam incident from above the sample surface; measuring the amount of the secondary electrons discharged according to the three-dimensional structure of the sample surface by the scanning; and determining the three-dimensional structure of the sample surface from the amount of the secondary electrons measured based on a relation existing between the predetermined three-dimensional structure and the amount of the secondary electrons discharged.

    摘要翻译： 使用扫描型电子显微镜的样品表面结构测量方法，其特征在于通过从样品表面上方入射的电子束扫描样品表面; 通过扫描测量根据样品表面的三维结构排出的二次电子的量; 以及根据存在于预定三维结构和二次电子排出量之间的关系测量的二次电子量来确定样品表面的三维结构。