公开(公告)号：US20090028288A1

公开(公告)日：2009-01-29

申请号：US12179918

申请日：2008-07-25

申请人： Tetsuya Horiuchi ,  Satoru Nakanishi ,  Naruomi Akino

发明人： Tetsuya Horiuchi ,  Satoru Nakanishi ,  Naruomi Akino

IPC分类号： A61B6/00

CPC分类号： A61B6/032 ,  G06T11/006 ,  G06T2211/421 ,  G06T2211/432

摘要： An X-ray computed tomography apparatus includes a gantry, a reconstruction processing unit which generates first volume data on the basis of a projection data set which covers an angle range of 180°±a fan angle and also generates second volume data on the basis of a projection data set which covers an angle range of 360°, a correction data generating unit which generates correction data for reducing a cone beam artifact on the basis of a difference between the first volume data and the second volume data, and a correction unit which corrects the first volume data on the basis of the correction data.

摘要翻译： 一种X射线计算机断层摄影装置，包括台架，重建处理单元，其基于覆盖角度范围为180度±扇形角的投影数据集生成第一体积数据，并且还基于 覆盖360°的角度范围的投影数据组;校正数据生成单元，其基于第一体积数据和第二体数据之间的差产生用于减少锥形束伪像的校正数据;以及校正单元， 基于校正数据校正第一卷数据。

公开(公告)号：US08416913B2

公开(公告)日：2013-04-09

申请号：US12045966

申请日：2008-03-11

申请人： Naruomi Akino ,  Satoru Nakanishi ,  Tetsuya Horiuchi

发明人： Naruomi Akino ,  Satoru Nakanishi ,  Tetsuya Horiuchi

IPC分类号： A61B6/03

CPC分类号： G06T11/005 ,  A61B6/03 ,  G06T7/564 ,  G06T2207/10116

摘要： X-ray transmission data of a specific direction is extracted from X-ray transmission data obtained by rotating an X-ray tube irradiating an X-ray around an object. The outline of the object is calculated based on the X-ray transmission data of the specific direction. Then, based on this outline, the X-ray transmission data is corrected, and an image of the inside of the object is reconstructed from the corrected X-ray transmission data.

摘要翻译： 从通过旋转X射线管照射X射线的物体所获得的X射线透射数据中提取特定方向的X射线透射数据。 基于特定方向的X射线透射数据计算对象的轮廓。 然后，基于该轮廓，对X射线透射数据进行校正，根据经校正的X射线透射数据重构对象内部的图像。

公开(公告)号：US07751524B2

公开(公告)日：2010-07-06

申请号：US12179918

申请日：2008-07-25

申请人： Tetsuya Horiuchi ,  Satoru Nakanishi ,  Naruomi Akino

发明人： Tetsuya Horiuchi ,  Satoru Nakanishi ,  Naruomi Akino

IPC分类号： A61B6/00

CPC分类号： A61B6/032 ,  G06T11/006 ,  G06T2211/421 ,  G06T2211/432

摘要： An X-ray computed tomography apparatus includes a gantry, a reconstruction processing unit which generates first volume data on the basis of a projection data set which covers an angle range of 180°+a fan angle and also generates second volume data on the basis of a projection data set which covers an angle range of 360°, a correction data generating unit which generates correction data for reducing a cone beam artifact on the basis of a difference between the first volume data and the second volume data, and a correction unit which corrects the first volume data on the basis of the correction data.

摘要翻译： 一种X射线计算机断层摄影装置，包括台架，重建处理单元，其基于覆盖角度范围为180度+风扇角度的投影数据集生成第一体积数据，并且还基于 覆盖360°的角度范围的投影数据组;校正数据生成单元，其基于第一体积数据和第二体数据之间的差产生用于减少锥形束伪像的校正数据;以及校正单元， 基于校正数据校正第一卷数据。

公开(公告)号：US20080226022A1

公开(公告)日：2008-09-18

申请号：US12045966

申请日：2008-03-11

申请人： Naruomi Akino ,  Satoru Nakanishi ,  Tetsuya Horiuchi

发明人： Naruomi Akino ,  Satoru Nakanishi ,  Tetsuya Horiuchi

IPC分类号： A61B6/00

CPC分类号： G06T11/005 ,  A61B6/03 ,  G06T7/564 ,  G06T2207/10116

摘要： X-ray transmission data of a specific direction is extracted from X-ray transmission data obtained by rotating an X-ray tube irradiating an X-ray around an object. The outline of the object is calculated based on the X-ray transmission data of the specific direction. Then, based on this outline, the X-ray transmission data is corrected, and an image of the inside of the object is reconstructed from the corrected X-ray transmission data.

摘要翻译： 从通过旋转X射线管照射X射线的物体所获得的X射线透射数据中提取特定方向的X射线透射数据。 基于特定方向的X射线透射数据计算对象的轮廓。 然后，基于该轮廓，对X射线透射数据进行校正，根据经校正的X射线透射数据重构对象内部的图像。

公开(公告)号：US07848480B2

公开(公告)日：2010-12-07

申请号：US11776866

申请日：2007-07-12

申请人： Satoru Nakanishi ,  Naruomi Akino ,  Yasuo Saito

发明人： Satoru Nakanishi ,  Naruomi Akino ,  Yasuo Saito

IPC分类号： A61B6/03

CPC分类号： A61B6/4014 ,  A61B6/032 ,  A61B6/541

摘要： An X-ray CT scanner includes X-ray tubes including a first X-ray tube and a second X-ray tube having fan angles different from each other, X-ray detectors including a first X-ray detector and a second X-ray detector which are respectively arranged to face the first X-ray tube and the second X-ray tube, collection data processing means for executing weighting processing to each of pieces of collection data including first collection data obtained by the first X-ray detector and second collection data obtained by the second X-ray detector to generate image data combined to be smooth in a direction corresponding to a channel direction of detection elements provided in the X-ray detectors, and image generating section for performing processing including image reconstruction processing with respect to pieces of collection data weighted by the collection data processing section to generate image data.

摘要翻译： X射线CT扫描器包括X射线管，X射线管包括第一X射线管和具有彼此不同角度的扇形角的第二X射线管，X射线检测器包括第一X射线检测器和第二X射线 检测器，其分别布置为面对第一X射线管和第二X射线管，收集数据处理装置，用于对包括由第一X射线检测器获得的第一收集数据和第二X射线检测器的第二收集数据进行加权处理 通过第二X射线检测器获得的收集数据，以生成在与设置在X射线检测器中的检测元件的通道方向对应的方向上平滑化的图像数据;以及图像生成部，执行包括图像重建处理的处理 由收集数据处理部分加权的收集数据片段以生成图像数据。

公开(公告)号：US20080019474A1

公开(公告)日：2008-01-24

申请号：US11776866

申请日：2007-07-12

申请人： Satoru Nakanishi ,  Naruomi Akino ,  Yasuo Saito

发明人： Satoru Nakanishi ,  Naruomi Akino ,  Yasuo Saito

IPC分类号： A61B6/03

CPC分类号： A61B6/4014 ,  A61B6/032 ,  A61B6/541

摘要： An X-ray CT scanner includes X-ray tubes including a first X-ray tube and a second X-ray tube having fan angles different from each other, X-ray detectors including a first X-ray detector and a second X-ray detector which are respectively arranged to face the first X-ray tube and the second X-ray tube, collection data processing means for executing weighting processing to each of pieces of collection data including first collection data obtained by the first X-ray detector and second collection data obtained by the second X-ray detector to generate image data combined to be smooth in a direction corresponding to a channel direction of detection elements provided in the X-ray detectors, and image generating section for performing processing including image reconstruction processing with respect to pieces of collection data weighted by the collection data processing section to generate image data.

摘要翻译： X射线CT扫描器包括X射线管，X射线管包括第一X射线管和具有彼此不同角度的扇形角的第二X射线管，X射线检测器包括第一X射线检测器和第二X射线 检测器，其分别布置为面对第一X射线管和第二X射线管，收集数据处理装置，用于对包括由第一X射线检测器获得的第一收集数据和第二X射线检测器的第二收集数据进行加权处理 通过第二X射线检测器获得的收集数据，以生成在与设置在X射线检测器中的检测元件的通道方向对应的方向上平滑化的图像数据;以及图像生成部，执行包括图像重建处理的处理 由收集数据处理部分加权的收集数据片段以生成图像数据。

公开(公告)号：US08045781B2

公开(公告)日：2011-10-25

申请号：US12169963

申请日：2008-07-09

申请人： Satoru Nakanishi ,  Naruomi Akino

发明人： Satoru Nakanishi ,  Naruomi Akino

IPC分类号： G06K9/00

CPC分类号： G06T11/008 ,  A61B6/027 ,  Y10S378/901

摘要： An X-ray computed tomography apparatus scans a subject to be examined with cone beam X-rays, and generates reference volume data on the basis of projection data. This apparatus extracts a cone beam artifact component contained in the reference volume data on the basis of the typical shape and direction of the cone beam artifact component. This apparatus generates resultant volume data with the reduced cone beam artifact by subtracting the cone beam artifact component from the reference volume data.

摘要翻译： X射线计算机断层摄影装置用锥形束X射线扫描要检查的对象，并根据投影数据生成参考体积数据。 该装置基于锥形束伪影分量的典型形状和方向提取包含在参考体积数据中的锥形束伪影分量。 该装置通过从参考体积数据中减去锥束伪影分量来产生具有减小的锥束伪影的合成体数据。

公开(公告)号：US08755585B2

公开(公告)日：2014-06-17

申请号：US13107368

申请日：2011-05-13

申请人： Satoru Nakanishi ,  Yasuhiro Noshi

发明人： Satoru Nakanishi ,  Yasuhiro Noshi

IPC分类号： G06K9/00

CPC分类号： A61B6/5258 ,  A61B6/032 ,  A61B6/583 ,  G06T11/006

摘要： According to one embodiment, an X-ray computed tomography apparatus includes an X-ray tube, an X-ray detector, and a rotating unit. The first reconstruction processing reconstructs a clinical image based on projection data detected by the X-ray detector. The second reconstruction processing reconstructs a noise image based on noise data. The clinical image is combined with the noise image.

摘要翻译： 根据一个实施例，X射线计算机断层摄影装置包括X射线管，X射线检测器和旋转单元。 第一重建处理基于由X射线检测器检测到的投影数据重建临床图像。 第二重建处理基于噪声数据重建噪声图像。 临床图像与噪声图像相结合。

公开(公告)号：US08709193B2

公开(公告)日：2014-04-29

申请号：US12511180

申请日：2009-07-29

申请人： Kenichirou Tada ,  Satoru Nakanishi ,  Taku Yamaga ,  Shun Ito ,  Kenichi Watanabe ,  Miyoshi Yokura ,  Masashi Kato ,  Hisashi Katsumata

发明人： Kenichirou Tada ,  Satoru Nakanishi ,  Taku Yamaga ,  Shun Ito ,  Kenichi Watanabe ,  Miyoshi Yokura ,  Masashi Kato ,  Hisashi Katsumata

IPC分类号： B32B37/00

CPC分类号： B32B38/0008 ,  B32B27/10 ,  B32B27/16 ,  B32B27/286 ,  B32B37/10 ,  B32B37/1054 ,  B32B2037/0092 ,  B32B2262/0269 ,  B32B2262/14 ,  B32B2305/076 ,  B32B2307/206 ,  B32B2307/208 ,  B32B2309/02 ,  B32B2309/105 ,  B32B2309/12 ,  B32B2309/72 ,  B32B2317/12 ,  B32B2367/00 ,  B32B2605/00 ,  H01B3/301 ,  Y10T428/31725

摘要： A low-temperature plasma treatment is applied to a surface of an aramid paper so as to allow the surface to have a compositional atomic ratio X (O/C) of the number of oxygen atoms (O) to the number of carbon atoms (C) ranging from 110% to 220% of a theoretical atomic ratio. The treatment is performed at an intensity ranging from 120 to 1500 W·min/m2 with a low-temperature plasma treatment apparatus of internal electrode system. The aramid paper is superposed with a nonhydrolyzable resin film and the resulting article is pressurized to give an aramid-resin film laminate. The laminate is inexpensive, has both superior electrical properties and high mechanical strength, excels in elasticity, and is useful as an insulation material.

摘要翻译： 将低温等离子体处理施加到芳族聚酰胺纸的表面，以使表面具有氧原子数（O）与碳原子数（C）的组成原子比X（O / C） ）为理论原子比的110％至220％。 用内部电极系统的低温等离子体处理装置，以120〜1500W·min / m 2的强度进行处理。 将芳族聚酰胺纸与不可水解的树脂膜重叠，并将所得制品加压，得到芳族聚酰胺树脂膜层压体。 该层压板是廉价的，具有优异的电性能和高机械强度，弹性优异，并且可用作绝缘材料。

公开(公告)号：US08693784B2

公开(公告)日：2014-04-08

申请号：US13805597

申请日：2011-07-06

申请人： Akira Kadoya ,  Satoru Nakanishi ,  Shinichi Kojima

发明人： Akira Kadoya ,  Satoru Nakanishi ,  Shinichi Kojima

IPC分类号： G06K9/48 ,  G06K9/46 ,  G06K9/40 ,  G06K9/00

CPC分类号： G06K9/0061 ,  G06K9/00597 ,  G06K9/4623 ,  G06T7/12 ,  G06T2207/30041 ,  G06T2207/30201

摘要： An eyelid detection device that, based on first order differential values and second order differential values of vertical density change at an eyelid boundary in an eye image, shifts the second order differential values upwards by ¼ of the cycle of density change frequency of an eyelid boundary and combines the first order differential values and the second order differential values to compute upper eyelid feature amounts. The eyelid detection device detects a boundary between an upper eyelid and eyeball based on peak points in the vertical direction of the computed upper eyelid feature amounts. Consequently, the boundary between an eyelid and eyeball can be accurately detected even when the eyelid has been applied with makeup.

摘要翻译： 一种眼睑检测装置，其基于眼图中的眼睑边界处的垂直密度变化的一阶微分值和二阶微分值，将二阶微分值向上移动眼睑边界的密度变化频率周期的1/4 并组合一阶微分值和二阶微分值以计算上眼睑特征量。 眼睑检测装置基于计算的上眼睑特征量的垂直方向上的峰值点来检测上眼睑和眼球之间的边界。 因此，即使当眼睑已经被化妆时，也能够精确地检测眼睑和眼球之间的边界。