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81. 发明申请

US20060050838A1 CT image reconstruction method, CT apparatus, and program 失效
公开(公告)号：US20060050838A1
公开(公告)日：2006-03-09
申请号：US11214503
申请日：2005-08-30
申请人： Akira Hagiwara , Makoto Gohno , Mitsuru Yahata
发明人： Akira Hagiwara , Makoto Gohno , Mitsuru Yahata
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G06T11/005 , A61B6/027 , G06T2211/421
摘要： A CT image reconstruction method includes substituting other projection data, which has a predetermined positional relationship to projection data that is found defective during scanning, for the defective data, and interpolating back projection data using a value and information on a scanned position that are contained in the substitute data.

82. 发明申请

US20050094761A1 X-ray CT imaging method and X-ray CT apparatus 有权
标题翻译： X射线CT成像方法和X射线CT装置
公开(公告)号：US20050094761A1
公开(公告)日：2005-05-05
申请号：US10979534
申请日：2004-11-02
申请人： Akira Hagiwara
发明人： Akira Hagiwara
IPC分类号： A61B6/03 , G21K1/12 , A61B6/00 , G01B15/02 , G01N23/00 , G01N23/06 , H05G1/60
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4085 , A61B6/469 , A61B6/542 , Y10S378/901
摘要： A method of reducing the distance of rectilinear motion in a helical scan includes defining a rectilinear motion start point La and a rectilinear motion end point Lb within a region of interest ROI for which a CT image is to be created, collecting projection data from the rectilinear motion start point La to the rectilinear motion end point Lb, and creating a CT image at a desired image position in the region of interest ROI using the collected projection data.
摘要翻译：减少螺旋扫描中的直线运动的距离的方法包括在要创建CT图像的感兴趣ROI的区域内定义直线运动起始点La和直线运动终点Lb，从直线收集投影数据运动起点La到直线运动终点Lb，并且使用所收集的投影数据在感兴趣区域ROI中的期望图像位置处创建CT图像。

83. 发明申请

US20050053187A1 Radiation tomographic imaging apparatus and radiation tomographic imaging method, and image producing apparatus 有权
标题翻译：放射断层成像装置和放射线断层成像方法以及图像产生装置
公开(公告)号：US20050053187A1
公开(公告)日：2005-03-10
申请号：US10924291
申请日：2004-08-23
申请人： Akira Hagiwara
发明人： Akira Hagiwara
IPC分类号： A61B6/00 , A61B6/03 , G01N23/04 , G06T5/00 , G06T5/20 , G21K1/12 , G01N23/00 , H05G1/60
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4085 , G01N23/046 , G01N2223/419 , G01N2223/612 , G06T5/002 , G06T5/20 , G06T5/50 , G06T2207/10081 , Y10S378/901
摘要： A method and apparatus for reducing image noise, increasing image resolution, and facilitating reduced exposure to a subject to be imaged or improved apparatus life. A radiation tomographic imaging apparatus comprises, as image producing means, inter-imaging-plane filtering processing means for acquiring image data for a plurality of planes generated corresponding to imaging planes that are a plurality of cross-sectional planes of a subject to be imaged, and conducting filtering processing on the image data across the plurality of imaging planes. The filtering processing across the imaging planes that are a plurality of cross-sectional planes facilitates discrimination between a specific shape present in the cross-sectional plane and noise.
摘要翻译：一种用于减少图像噪声，增加图像分辨率并且有助于减少对被成像对象的曝光或改善设备寿命的方法和装置。放射线断层成像装置包括作为图像产生装置的成像间平面滤波处理装置，用于获取对应于要成像对象的多个横截面的成像平面产生的多个平面的图像数据，对跨越多个成像面的图像数据进行滤波处理。跨越成像平面的多个横截面平面的滤波处理有助于区分存在于横截面中的特定形状和噪声。

84. 发明授权

US06865247B2 Three dimensional back projection method and an X-ray CT apparatus 失效
标题翻译：三维反投影法和X射线CT装置
公开(公告)号：US06865247B2
公开(公告)日：2005-03-08
申请号：US10442611
申请日：2003-05-21
申请人： Akira Hagiwara
发明人： Akira Hagiwara
IPC分类号： A61B6/03 , G06T11/00
CPC分类号： G06T11/005 , A61B6/027 , G06T11/006 , G06T2211/421 , Y10S378/901
摘要： In order to reduce the amount of computation in the cone beam reconstruction, the invention provides, from within raw data acquired using a multidetector, extracting raw data Dr corresponding to plural lines on reconstruction field (S4), generating projection line data (S5) by multiplying raw data with cone beam reconstruction weight, filtering projection line data to generate image positional line data Df (S6), determining back projection pixel data (S7, S8, S9) of each pixel on the reconstruction field based on the image positional line data, adding, for each pixel, back projection pixel data of all views used for the image reconstruction to determine back projection data (S10, S11). The number of lines may be variable in compliance with a desired image quality.
摘要翻译：为了减少锥形束重构中的计算量，本发明提供从采用多检测器获得的原始数据内提取对应于重建场上多行的原始数据Dr（S4），通过以下方式产生投影线数据（S5）：将原始数据与锥束重建权重相乘，滤波投影线数据以产生图像位置线数据Df（S6），基于图像位置线数据确定重建场上每个像素的反投影像素数据（S7，S8，S9），对于每个像素，添加用于图像重建的所有视图的背投影像素数据以确定反投影数据（S10，S11）。线数可以根据期望的图像质量而变化。

85. 发明授权

US5482387A Dot print head and method of control over printing therewith 失效
标题翻译：点印头及其印刷方法
公开(公告)号：US5482387A
公开(公告)日：1996-01-09
申请号：US292601
申请日：1994-08-18
申请人： Jiro Tanuma , Hideaki Ishimizu , Akira Hagiwara , Tadashi Kasai
发明人： Jiro Tanuma , Hideaki Ishimizu , Akira Hagiwara , Tadashi Kasai
IPC分类号： B41J2/25 , B41J2/255 , B41J2/265 , B41J2/30
CPC分类号： B41J2/25 , B41J2/265
摘要： In a dot print head of an impact type moved in a direction of spacing movement relative to a printing medium, and having a plurality of printing elements each having a printing wire arranged substantially in an elongated circle centered at a line parallel with the direction in which the printing elements are driven, and which is provided with a wire guide having guide elements for the respective printing wires for guiding tips of the printing wires to predetermined positions on said printing medium, the guide elements are divided into at least four rows each extending in the direction orthogonal to said direction of the spacing movement and orthogonal to the direction in which the printing wires extend, and distances between said rows are multiples of 1/240 inches. Each of the printing elements is driven for printing either at a reference timing which occurs once a standard printing cycle having a standard period, at a timing 1/4 of the standard period past said reference timing, at a timing half the standard period past said reference timing, or at a timing 3/4 of the standard period past said reference timing.
摘要翻译：在相对于打印介质在间隔移动方向上移动的冲击类型的点打印头中，并且具有多个打印元件，每个印刷元件具有基本上布置在以与其中与打印元件被驱动，并且其设置有导线器，其具有用于将印刷线的尖端引导到所述打印介质上的预定位置的各个印刷线的引导元件，所述引导元件被分成至少四行，每列延伸到与所述间隔运动的所述方向正交的方向与印刷线延伸的方向正交的方向，并且所述行之间的距离为1/240英寸的倍数。每个打印元件被驱动以便在参考定时进行打印，该参考定时是在标准周期之后出现的标准周期，在标准周期过去所述参考定时的时间的1/4处，在标准周期的一半以上，参考定时，或在标准周期的3/4之后经过所述参考定时。

86. 发明授权

US4822211A Method and apparatus for laying cable in a pipe 失效
标题翻译：将电缆放置在管道中的方法和装置
公开(公告)号：US4822211A
公开(公告)日：1989-04-18
申请号：US66141
申请日：1987-06-24
申请人： Yasuhiro Shinoda , Yoshifumi Takahashi , Tsuneto Takaso , Akira Hagiwara , Yoshiaki Ishii
发明人： Yasuhiro Shinoda , Yoshifumi Takahashi , Tsuneto Takaso , Akira Hagiwara , Yoshiaki Ishii
IPC分类号： G02B6/44 , G02B6/50 , H02G1/06 , H02G1/08 , F16L1/02
CPC分类号： H02G1/088 , G02B6/4459 , G02B6/4463 , G02B6/502 , G02B6/508
摘要： A cable is previously introduced into a pipe in which the cable is to be laid. A wagon is caused to move through the pipe and the cable is raised up with the aid of an arm disposed at the fore part of the wagon until it abuts against the inner wall of the pipe. The cable is then fixed to the inner wall of the pipe by using fixing means disposed at the rear part of the wagon.
摘要翻译：电缆先前被引入到要放置电缆的管道中。使得货车通过管道移动，并且借助于设置在货车前部的臂将电缆提升，直到其抵靠管道的内壁。然后通过使用设置在货车后部的固定装置将电缆固定到管道的内壁。

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