公开(公告)号：US20110030068A1

公开(公告)日：2011-02-03

申请号：US12846624

申请日：2010-07-29

申请人： Yasuhiro Imai

发明人： Yasuhiro Imai

IPC分类号： G06F21/00 ,  G06F3/048

CPC分类号： H04N1/32144 ,  H04N1/4413 ,  H04N1/444 ,  H04N2201/3233 ,  H04N2201/3246 ,  H04N2201/3269

摘要： There is provided an image processing apparatus which suppresses reduction in security due to increase in output products without any restriction without losing the convenience of a re-output function using a history. A method for controlling an image processing apparatus includes displaying a list of jobs executed based on a job history information stored in the storing means on display means, determining whether the job selected by a user from the displayed list of jobs is the one which output an output product whose copy is restricted, and restricting to output an output product in accordance with the job selected by the user if it is determined that the job is the one which output an output product whose copy is restricted.

摘要翻译： 提供了一种图像处理装置，其在没有任何限制的情况下抑制由于输出产物的增加而导致的安全性降低，而不会失去使用历史的重新输出功能的便利性。 一种用于控制图像处理装置的方法包括：根据存储在存储装置中的作业历史信息执行的作业列表显示在显示装置上，确定用户从所显示的作业列表中选择的作业是否是输出 输出产品，其复制被限制，并且如果确定作业是输出其副本被限制的输出产品的作品，则根据用户选择的作业来限制输出输出产品。

公开(公告)号：US07873141B2

公开(公告)日：2011-01-18

申请号：US11944262

申请日：2007-11-21

申请人： Yasuhiro Imai ,  Akihiko Nishide

发明人： Yasuhiro Imai ,  Akihiko Nishide

IPC分类号： A61B6/00

CPC分类号： A61B6/405 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/4042 ,  A61B6/482 ,  A61B6/505 ,  G06T11/008

摘要： For the purpose of providing an X-ray tomographic imaging apparatus for displaying a dual-energy image to facilitate diagnosis by an operator, an X-ray tomographic imaging apparatus (10) comprises: an image comparison information calculating section (24) for calculating image comparison information between said first-energy projection dataset(LD) or first-energy tomographic image(LT) and said second-energy projection dataset(HD) or second-energy tomographic image(HT); a region-of-interest defining section (23) for defining a region of interest; a weighting factor determining section (25-2) for determining a weighting factor for use in weighted subtraction processing between said first-energy projection dataset or first-energy tomographic image and said second-energy projection dataset or second-energy tomographic image, such that said image comparison information in said region of interest can be substantially eliminated by conducting said weighted subtraction processing; and a dual-energy image reconstructing section (22) for reconstructing a dual-energy image by conducting weighted subtraction processing between said first-energy projection dataset or first-energy tomographic image and said second-energy projection dataset or second-energy tomographic image used in said image comparison information calculating section, using a weighting factor determined at said weighting factor determining section.

摘要翻译： 为了提供用于显示双能量图像以便于操作者诊断的X射线断层成像装置，X射线断层成像装置（10）包括：用于计算图像的图像比较信息计算部（24） 所述第一能量投影数据集（LD）或第一能量断层图像（LT）和所述第二能量投影数据集（HD）或第二能量断层图像（HT）之间的比较信息; 用于定义感兴趣区域的兴趣区域定义部分（23）; 用于确定在所述第一能量投影数据集或第一能量断层图像与所述第二能量投影数据集或第二能量层析成像之间的加权减法处理中使用的加权因子的加权因子确定部分（25-2），使得 通过进行所述加权减法处理可以基本上消除所述感兴趣区域中的所述图像比较信息; 以及双能量图像重建部分（22），用于通过在所述第一能量投影数据集或第一能量断层图像和所述第二能量投影数据集或所使用的第二能量断层图像之间进行加权减法处理来重建双能量图像 在所述图像比较信息计算部分中，使用在所述加权因子确定部分确定的加权因子。

公开(公告)号：US07706498B2

公开(公告)日：2010-04-27

申请号：US12100235

申请日：2008-04-09

申请人： Yasuhiro Imai

发明人： Yasuhiro Imai

IPC分类号： G01N23/00 ,  G01N23/083

CPC分类号： A61B6/032 ,  A61B5/0402 ,  A61B6/027 ,  A61B6/541

摘要： For the purpose of X-ray CT imaging a heart of a subject with high image quality while reducing stress on the subject, once an optimal cardiac phase has been set by an optimal cardiac phase setting section 30b and a target position in a subject to be scanned when the cardiac phase of the subject is at an optimal cardiac phase is defined at a target position defining section 30c, a transport-starting-cardiac-phase calculating section 30b calculates a transport-starting cardiac phase such that the target position is scanned at the optimal cardiac phase, using the optimal cardiac cycle, target position, scan start position, transport speed of an imaging table, and approach-run time for the imaging table. A scan control section starts transport at the imaging table 4 when the cardiac phase of the subject coincides with the transport-starting cardiac phase, and performs a helical scan with a helical pitch of one or more, for example.

摘要翻译： 为了对具有高图像质量的受试者的心脏进行X射线CT成像，同时减轻受试者的压力，一旦最佳心脏相位已经由最佳心脏相位设定部分30b设定，并且受试者中的目标位置为 在目标位置定义部分30c定义受试者的心脏相位处于最佳心脏相位时扫描，运送起搏心脏相位计算部分30b计算传送起始心脏相位，使得目标位置被扫描在 使用最佳心动周期，目标位置，扫描开始位置，成像台的传输速度以及成像台的接近运行时间的最佳心脏相位。 当对象的心脏相位与传送起始心脏相位一致时，扫描控制部分在成像台4处开始传输，并且执行例如螺旋间距为一个或多个的螺旋扫描。

公开(公告)号：US20090122953A1

公开(公告)日：2009-05-14

申请号：US12268334

申请日：2008-11-10

申请人： Yasuhiro Imai

发明人： Yasuhiro Imai

IPC分类号： A61B6/00 ,  G06K9/00

CPC分类号： A61B6/405 ,  A61B6/032 ,  A61B6/481 ,  A61B6/482 ,  A61B6/505

摘要： An X-ray CT apparatus includes an X-ray radiation unit which applies a first X-ray having a first energy spectrum and a second X-ray having a second energy spectrum different from the first energy spectrum to a subject, an X-ray data acquisition unit which acquires first X-ray projection data of the subject based on the first X-ray and second X-ray projection data of the subject based on the second X-ray, and an image reconstruction unit which determines information about a difference between the first X-ray and the second X-ray with respect to an image of the subject, segments the image into at least two pixel areas based on the difference information, and sets part of the segmented pixel areas to a dual energy image obtained by a weighted subtraction process based on X-ray projection data having a plurality of energy spectrums.

摘要翻译： X射线CT装置包括X射线辐射单元，其将具有第一能谱的第一X射线和具有与第一能谱不同的第二能谱的第二X射线施加到被摄体，X射​​线 数据获取单元，其基于第二X射线基于被摄体的第一X射线投影数据和第二X射线投影数据获取被摄体的第一X射线投影数据;以及图像重建单元，其确定关于差异的信息 在相对于被摄体的图像的第一X射线和第二X射线之间，基于差异信息将图像分割成至少两个像素区域，并且将部分分割的像素区域设置为获得的双能量图像 通过基于具有多个能谱的X射线投影数据的加权减法处理。

公开(公告)号：US20060289765A1

公开(公告)日：2006-12-28

申请号：US11159706

申请日：2005-06-23

申请人： Abdelaziz Ikhlef ,  Yasuhiro Imai

发明人： Abdelaziz Ikhlef ,  Yasuhiro Imai

IPC分类号： G01J5/02

CPC分类号： G01T1/2985 ,  G01T1/2018 ,  G01T7/005

摘要： Methods and systems for calibrating a Computed Tomography (CT) system are provided. The method includes selectively activating each of a plurality of elements of a detector in the CT system. The method further includes determining for each of the selectively activated elements, a crosstalk effect on elements adjacent to the activated elements, to calibrate the CT system.

摘要翻译： 提供了用于校准计算机断层扫描（CT）系统的方法和系统。 该方法包括选择性地激活CT系统中的检测器的多个元件中的每一个。 该方法还包括为每个选择性激活的元件确定与激活的元件相邻的元件的串扰效应，以校准CT系统。

公开(公告)号：US4498440A

公开(公告)日：1985-02-12

申请号：US595867

申请日：1984-04-02

申请人： Toshio Nomura ,  Yasuhiro Imai ,  Tomio Aoi ,  Tetsuo Nakajima ,  Hiroshi Irino

发明人： Toshio Nomura ,  Yasuhiro Imai ,  Tomio Aoi ,  Tetsuo Nakajima ,  Hiroshi Irino

IPC分类号： F02D41/06 ,  F02M7/24

CPC分类号： F02D41/06 ,  F02D41/065

摘要： A mixture control apparatus for a carburetor which precludes otherwise possible occurrence of fluctuation in the opening angle of the throttle valve even when the engine operation happens to fall near the boundary between the cold state and the hot state. The electric motor for driving the throttle valve is prevented from moving to the side of reverse rotation thereof from the side of normal rotation thereof past a home position after said engine has been changed to its hot state and unless a stop of said engine is detected.

摘要翻译： 即使在发动机运转发生在冷态与热态之间的边界附近的情况下，也可以排除节流阀的开度角可能发生波动的化油器的混合控制装置。 用于驱动节流阀的电动机在发动机已经改变到其热状态之后被防止从其正常旋转一侧向其反向旋转的一侧移动到原始位置，除非检测到所述发动机的停止。

公开(公告)号：US20080260092A1

公开(公告)日：2008-10-23

申请号：US11944262

申请日：2007-11-21

申请人： Yasuhiro Imai ,  Akihiko Nishide

发明人： Yasuhiro Imai ,  Akihiko Nishide

IPC分类号： H05G1/60 ,  G06K9/00

CPC分类号： A61B6/405 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/4042 ,  A61B6/482 ,  A61B6/505 ,  G06T11/008

摘要： For the purpose of providing an X-ray tomographic imaging apparatus for displaying a dual-energy image to facilitate diagnosis by an operator, an X-ray tomographic imaging apparatus (10) comprises: an image comparison information calculating section (24) for calculating image comparison information between said first-energy projection dataset (LD) or first-energy tomographic image (LT) and said second-energy projection dataset (HD) or second-energy tomographic image (HT); a region-of-interest defining section (23) for defining a region of interest; a weighting factor determining section (25-2) for determining a weighting factor for use in weighted subtraction processing between said first-energy projection dataset or first-energy tomographic image and said second-energy projection dataset or second-energy tomographic image, such that said image comparison information in said region of interest can be substantially eliminated by conducting said weighted subtraction processing; and a dual-energy image reconstructing section (22) for reconstructing a dual-energy image by conducting weighted subtraction processing between said first-energy projection dataset or first-energy tomographic image and said second-energy projection dataset or second-energy tomographic image used in said image comparison information calculating section, using a weighting factor determined at said weighting factor determining section.

摘要翻译： 为了提供用于显示双能量图像以便于操作者诊断的X射线断层成像装置，X射线断层成像装置（10）包括：用于计算图像的图像比较信息计算部（24） 所述第一能量投影数据集（LD）或第一能量断层图像（LT）和所述第二能量投影数据集（HD）或第二能量断层图像（HT）之间的比较信息; 用于定义感兴趣区域的兴趣区域定义部分（23）; 用于确定在所述第一能量投影数据集或第一能量断层图像与所述第二能量投影数据集或第二能量层析成像之间的加权减法处理中使用的加权因子的加权因子确定部分（25-2），使得 通过进行所述加权减法处理可以基本上消除所述感兴趣区域中的所述图像比较信息; 以及双能量图像重建部分（22），用于通过在所述第一能量投影数据集或第一能量断层图像和所述第二能量投影数据集或所使用的第二能量断层图像之间进行加权减法处理来重建双能量图像 在所述图像比较信息计算部分中，使用在所述加权因子确定部分确定的加权因子。

公开(公告)号：US20070237286A1

公开(公告)日：2007-10-11

申请号：US11620627

申请日：2007-01-05

申请人： Yasuhiro Imai

发明人： Yasuhiro Imai

IPC分类号： G01N23/00

CPC分类号： A61B6/032 ,  A61B5/0452 ,  A61B5/7207 ,  A61B6/027 ,  A61B6/481 ,  A61B6/503 ,  A61B6/504 ,  A61B6/541 ,  G01N23/046 ,  G01N2223/419

摘要： An X-ray CT apparatus includes an X-ray data acquisition device for acquiring X-ray projection data transmitted through a subject lying between an X-ray generator and an X-ray detector having a two-dimensional detection plane and detecting X rays in opposition to the X-ray generator, while the X-ray generator and the X-ray detector are being rotated about a center of rotation lying therebetween; an image reconstructing device for image-reconstructing the acquired projection data; an image display device for displaying the image-reconstructed tomographic image; and an imaging condition setting device for setting various kinds of imaging conditions for tomographic image, wherein the X-ray data acquisition device acquires X-ray projection data in sync with an external sync signal by a helical scan with a predetermined range of the subject with a helical pitch set to 1 or more.

摘要翻译： X射线CT装置包括X射线数据获取装置，用于获取通过X射线发生器和具有二维检测平面的X射线检测器之间的被摄体发送的X射线投影数据，并且检测X射线 与X射线发生器相对，而X射线发生器和X射线检测器围绕位于其间的旋转中心旋转; 用于对所获取的投影数据进行图像重建的图像重建装置; 用于显示图像重构的断层图像的图像显示装置; 以及用于设置断层图像的各种成像条件的成像条件设置装置，其中所述X射线数据获取装置通过具有所述对象的预定范围的螺旋扫描与外部同步信号同步地获取X射线投影数据， 螺距设定为1以上。

公开(公告)号：US20060291615A1

公开(公告)日：2006-12-28

申请号：US11471198

申请日：2006-06-20

申请人： Akihiko Nishide ,  Yasuhiro Imai ,  Akira Hagiwara

发明人： Akihiko Nishide ,  Yasuhiro Imai ,  Akira Hagiwara

IPC分类号： A61B6/00 ,  G01N23/00 ,  G21K1/12 ,  H05G1/60

CPC分类号： G06T11/005 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/541

摘要： When an X-ray CT apparatus including a two-dimensional X-ray area detector performs a conventional (axial) scan or a cine scan, a plurality of segments of projection data items detected synchronously with an external signal or a biomedical signal is sampled from projection data items acquired during one scan or a plurality of scans. Projection data items corresponding to those detected during a half scan of rotating an X-ray tube by an angle of 180° plus the angle of a fan beam falling on the detector or during a 360° full scan are used to reconstruct a three-dimensional image. Thus, a three-dimensional tomographic image enjoying a high temporal resolution is displayed. Moreover, successive three-dimensional display images showing states of a subject synchronized with respective phases of the external signal or biomedical signal may be displayed as a four-dimensional image.

摘要翻译： 当包括二维X射线区域检测器的X射线CT装置执行常规（轴向）扫描或电影扫描时，与外部信号或生物医学信号同步检测的多个投影数据段被从 在一次扫描或多次扫描期间获取的投影数据项。 对应于在将X射线管旋转180°的角度的半扫描期间检测到的投影数据项与落在检测器上的风扇角度或360°全扫描期间的投影数据项目被用于重建三维 图片。 因此，显示享受高时间分辨率的三维断层图像。 此外，显示与外部信号或生物医学信号的各个相位同步的被检体的状态的连续的三维显示图像可以被显示为四维图像。

公开(公告)号：US08798228B2

公开(公告)日：2014-08-05

申请号：US13409912

申请日：2012-03-01

申请人： Arun Kumar Chandrashekarappa ,  Pankaj Giri ,  Gobinath Mani ,  Yasuhiro Imai ,  Haruna Onodera

发明人： Arun Kumar Chandrashekarappa ,  Pankaj Giri ,  Gobinath Mani ,  Yasuhiro Imai ,  Haruna Onodera

IPC分类号： A61B6/03

CPC分类号： A61B6/542 ,  A61B6/032 ,  A61B6/405 ,  A61B6/469 ,  A61B6/488

摘要： In one embodiment, a method to reduce the radiation dose delivered by an imaging system is provided. The method comprises steps of selecting a virtual mask representation based on the shape of an organ to be masked, displaying the virtual mask representation on a scout image and manipulating radiation dose to be delivered so as to modify the virtual mask representation to obtain an optimum attenuation profile.

摘要翻译： 在一个实施例中，提供了一种降低由成像系统传递的辐射剂量的方法。 该方法包括以下步骤：基于待屏蔽的器官的形状选择虚拟掩模表示，在侦察图像上显示虚拟掩码表示并操纵要传送的辐射剂量，以便修改虚拟掩码表示以获得最佳衰减 个人资料