公开(公告)号：EP2889001A1

公开(公告)日：2015-07-01

申请号：EP12883124.5

申请日：2012-08-24

申请人： Fujitsu Limited ,  The University of Tokyo

发明人： HATANAKA, Kohei ,  HISADA, Toshiaki ,  SUGIURA, Seiryo ,  WASHIO, Takumi ,  OKADA, Jun-ichi

IPC分类号： A61B6/03

CPC分类号： G06T15/08 ,  A61B6/032 ,  A61B6/466 ,  A61B6/5211 ,  A61B2576/00 ,  G06T7/0012 ,  G06T7/11 ,  G06T7/143 ,  G06T7/149 ,  G06T15/50 ,  G06T2207/10072 ,  G06T2207/20076 ,  G06T2207/20081 ,  G06T2207/20104 ,  G06T2207/30048

摘要： A shape data generation method relating to this invention includes: first generating first three-dimensional voxel data that represents a target obj ect by using first tomographic images, in which a first region occupied by the target object is designated, among plural tomographic images; extracting, from the first tomographic images, brightness values of voxels included in the first region; second generating a function for calculating a probability that a voxel is included in the first region by using the extracted brightness values; calculating, for each voxel among voxels in a voxel space that includes the plural tomographic images, a probability by using a brightness value of the voxel and the function; and third generating second three-dimensional voxel data that represents the target object by using the first three-dimensional voxel data and probabilities calculated for the voxels in the voxel space.

摘要翻译： 本发明的形状数据生成方法包括：在多个断层图像中，首先生成表示目标对象的第一三维体素数据，该第一三维体素数据使用第一断层图像，其中指定了目标对象所占据的第一区域; 从第一断层图像中提取包括在第一区域中的体素的亮度值; 第二生成功能，用于通过使用所提取的亮度值来计算体素被包括在第一区域中的概率; 针对包括所述多个断层图像的体素空间中的体素中的每个体素，通过使用所述体素的亮度值和所述函数来计算概率; 以及第三生成通过使用第一三维体素数据和针对体素空间中的体素计算的概率来表示目标对象的第二三维体素数据。

公开(公告)号：EP2876609A1

公开(公告)日：2015-05-27

申请号：EP12881634.5

申请日：2012-07-23

申请人： Fujitsu Limited ,  The University of Tokyo

发明人： HATANAKA, Kohei ,  HISADA, Toshiaki ,  SUGIURA, Seiryo ,  WASHIO, Takumi ,  OKADA, Jun-ichi

IPC分类号： G06T19/00 ,  G06T1/00

CPC分类号： G06T19/20 ,  G06T17/20 ,  G06T2210/41 ,  G06T2211/40 ,  G06T2219/2016 ,  G06T2219/2021

摘要： A shape data generation method includes: generating a target shape of transformation from plural tomographic images of an object; specifying, from among plural vertices of a first shape that is a reference shape of the object, plural first vertices, each first vertex of which satisfies a condition that a normal line of the first vertex passes through a point that is located on the target shape and is located on a boundary of the object in any one of the plural tomographic images; identifying, for each of the plural first vertices, a second vertex that internally divides a segment between the first vertex and the point; transforming the first shape so as to put each of the plural first vertices on a corresponding second vertex; setting a shape after the transforming to the first shape; and executing the first specifying and the subsequent processings a predetermined number of times.

摘要翻译： 形状数据生成方法包括：从对象的多个断层图像生成变形的目标形状; 从作为对象的基准形状的第一形状的多个顶点中指定多个第一顶点，其第一顶点满足第一顶点的法线通过位于目标形状的点的条件 并且位于所述多个断层图像中的任一个中的所述物体的边界上; 为所述多个第一顶点中的每一个识别在所述第一顶点和所述点之间内部划分所述段的第二顶点; 变换所述第一形状以将所述多个第一顶点中的每一个顶点放置在对应的第二顶点上; 将变形后的形状设定为第一形状; 以及执行所述第一指定和后续处理预定次数。

公开(公告)号：EP3166032B1

公开(公告)日：2018-10-03

申请号：EP14896780.5

申请日：2014-07-03

申请人： Fujitsu Limited ,  The University of Tokyo

发明人： HISADA, Toshiaki ,  SUGIURA, Seiryo ,  WASHIO, Takumi ,  OKADA, Junichi ,  NAGAI, Ryozo ,  KARIYA, Taro ,  WATANABE, Masahiro ,  HATANAKA, Kohei ,  NAKAGAWA, Machiko ,  KADOOKA, Yoshimasa

IPC分类号： G16H50/50

CPC分类号： G16H50/50 ,  G06F19/00

摘要： There is enabled an accurate fluid-structure interaction simulation on a biological organ having a deformable site that has an interface difficult to track. An operation unit (12) represents a structure domain in which tissues of a biological organ exist by using a structure mesh model (2) based on a Lagrange description method and a fluid domain in which fluid inside the biological organ exists by using an ALE fluid mesh model (3) based on an ALE description method. In addition, when performing a fluid-structure interaction simulation, the operation unit (12) deforms the structure mesh model (2) along with the progress of the simulation. Specifically, the operation unit (12) deforms the ALE fluid mesh model (3) in such a manner that no gap is formed on a first interface (4) located between a domain in which a site other than a certain site (2a) of the biological organ in the structure domain exists and the fluid domain or no overlap is formed with the structure domain, to track the first interface (4). The operation unit (12) captures a position of a second interface (5) located between a domain in which the certain site (2a) in the structure domain exists and the fluid domain by using the ALE fluid mesh model (3) as a reference.

公开(公告)号：EP2876607B1

公开(公告)日：2019-07-31

申请号：EP12881557.8

申请日：2012-07-23

申请人： Fujitsu Limited ,  The University of Tokyo

发明人： NAKAGAWA, Machiko ,  HATANAKA, Kohei ,  HISADA, Toshiaki ,  SUGIURA, Seiryo ,  WASHIO, Takumi ,  OKADA, Jun-ichi

IPC分类号： G06T19/00

公开(公告)号：EP2889001B1

公开(公告)日：2017-09-13

申请号：EP12883124.5

申请日：2012-08-24

申请人： Fujitsu Limited ,  The University of Tokyo

发明人： HATANAKA, Kohei ,  HISADA, Toshiaki ,  SUGIURA, Seiryo ,  WASHIO, Takumi ,  OKADA, Jun-ichi

IPC分类号： A61B6/03 ,  G06T7/00

CPC分类号： G06T15/08 ,  A61B6/032 ,  A61B6/466 ,  A61B6/5211 ,  A61B2576/00 ,  G06T7/0012 ,  G06T7/11 ,  G06T7/143 ,  G06T7/149 ,  G06T15/50 ,  G06T2207/10072 ,  G06T2207/20076 ,  G06T2207/20081 ,  G06T2207/20104 ,  G06T2207/30048

公开(公告)号：EP2876609B1

公开(公告)日：2017-12-13

申请号：EP12881634.5

申请日：2012-07-23

申请人： Fujitsu Limited ,  The University of Tokyo

发明人： HATANAKA, Kohei ,  HISADA, Toshiaki ,  SUGIURA, Seiryo ,  WASHIO, Takumi ,  OKADA, Jun-ichi

IPC分类号： G06T19/00 ,  G06T1/00

CPC分类号： G06T19/20 ,  G06T17/20 ,  G06T2210/41 ,  G06T2211/40 ,  G06T2219/2016 ,  G06T2219/2021

摘要： A shape data generation method includes: generating a target shape of transformation from plural tomographic images of an object; specifying, from among plural vertices of a first shape that is a reference shape of the object, plural first vertices, each first vertex of which satisfies a condition that a normal line of the first vertex passes through a point that is located on the target shape and is located on a boundary of the object in any one of the plural tomographic images; identifying, for each of the plural first vertices, a second vertex that internally divides a segment between the first vertex and the point; transforming the first shape so as to put each of the plural first vertices on a corresponding second vertex; setting a shape after the transforming to the first shape; and executing the first specifying and the subsequent processings a predetermined number of times.

公开(公告)号：EP3166032A1

公开(公告)日：2017-05-10

申请号：EP14896780.5

申请日：2014-07-03

申请人： Fujitsu Limited ,  The University of Tokyo

发明人： HISADA, Toshiaki ,  SUGIURA, Seiryo ,  WASHIO, Takumi ,  OKADA, Junichi ,  NAGAI, Ryozo ,  KARIYA, Taro ,  WATANABE, Masahiro ,  HATANAKA, Kohei ,  NAKAGAWA, Machiko ,  KADOOKA, Yoshimasa

IPC分类号： G06F19/00

CPC分类号： G16H50/50 ,  G06F19/00

摘要： There is enabled an accurate fluid-structure interaction simulation on a biological organ having a deformable site that has an interface difficult to track.
An operation unit (12) represents a structure domain in which tissues of a biological organ exist by using a structure mesh model (2) based on a Lagrange description method and a fluid domain in which fluid inside the biological organ exists by using an ALE fluid mesh model (3) based on an ALE description method. In addition, when performing a fluid-structure interaction simulation, the operation unit (12) deforms the structure mesh model (2) along with the progress of the simulation. Specifically, the operation unit (12) deforms the ALE fluid mesh model (3) in such a manner that no gap is formed on a first interface (4) located between a domain in which a site other than a certain site (2a) of the biological organ in the structure domain exists and the fluid domain or no overlap is formed with the structure domain, to track the first interface (4). The operation unit (12) captures a position of a second interface (5) located between a domain in which the certain site (2a) in the structure domain exists and the fluid domain by using the ALE fluid mesh model (3) as a reference.

摘要翻译： 有准确的流固耦合仿真启用了具有可变形部位做了一个生物器官具有接口难以追踪。 运算单元（12）darstellt其中A生物器官的组织中通过使用结构网格模型存在的结构域（2）的基础上拉格朗日描述方法，并且其中流体中的生物器官内部的流体域中存在通过使用在ALE流体 在ALE描述方法基于网格模型（3）。 此外，当进行流体 - 结构交互模拟，运算单元（12）变形的结构网格模型（2）非常久远的模拟的进度。 位于一个域之间具体地，操作单元（12）变形，ALE流体网格模型（3）求的方式并没有间隙形成在第一界面（4）上，其中除了有一定的位点（图2a）以外的部位 在该结构域的生物器官存在和流体域或没有重叠形成为与结构域，以跟踪所述第一接口（4）。 运算单元（12）通过使用ALE流体网格模型捕获位于其中在结构域中的某些部位（2a）中存在结构域和流体域之间的第二接口（5）的位置（3）为基准 ，

公开(公告)号：EP2876607A1

公开(公告)日：2015-05-27

申请号：EP12881557.8

申请日：2012-07-23

申请人： Fujitsu Limited ,  The University of Tokyo

发明人： NAKAGAWA, Machiko ,  HATANAKA, Kohei ,  HISADA, Toshiaki ,  SUGIURA, Seiryo ,  WASHIO, Takumi ,  OKADA, Jun-ichi

IPC分类号： G06T19/00

CPC分类号： G06T15/00 ,  G06K9/52 ,  G06T3/0056 ,  G06T3/0093 ,  G06T7/0012 ,  G06T7/12 ,  G06T7/149 ,  G06T19/20 ,  G06T2207/10072 ,  G06T2207/30048 ,  G06T2207/30104 ,  G06T2219/2021

摘要： This shape data generation method include: setting an input shape that has a simple shape that has a same topology as the target shape for a target shape that is a shape of a transformation target identified from image data; identifying first vertices that satisfy a predetermined condition including a first condition that a normal line of a certain vertex of the plural vertices crosses with the target shape, among plural vertices of the input shape; transforming the input shape so that a first vertex is moved in a direction of a normal line of the first vertex by a first distance that is shorter than a distance up to the target shape; and performing the identifying and the transforming a predetermined number of times while changing the input shape after the transforming as the input shape to be processed.

摘要翻译： 该形状数据生成方法包括：对于从图像数据识别的作为变换对象的形状的目标形状，设定具有与目标形状相同的拓扑结构的简单形状的输入形状; 识别满足预定条件的第一顶点，所述预定条件包括所述多个顶点的某个顶点的法线与所述目标形状在所述输入形状的多个顶点中交叉的第一条件; 变换所述输入形状，使得第一顶点沿所述第一顶点的法线的方向移动比距离所述目标形状的距离短的第一距离; 并且在将变换后的输入形状改变为要处理的输入形状的同时执行识别和变换预定次数。

公开(公告)号：EP4299012A1

公开(公告)日：2024-01-03

申请号：EP23180272.9

申请日：2023-06-20

申请人： FUJITSU LIMITED ,  Japan Medical Device Corporation ,  UT-Heart Inc.

发明人： SHIMO, Jinse ,  MINAMI, Kazuo ,  CHIBA, Shuichi ,  TOKUMARU, Yoshihiko ,  OKANO, Takafumi ,  SUGIURA, Seiryo ,  OKADA, Jun-ichi ,  HISADA, Toshiaki ,  WASHIO, Takumi ,  WATANABE, Masahiro ,  SHIMIZU, Yasutomo

IPC分类号： A61B8/08

摘要： An information processing apparatus generates heart shape data indicating a three-dimensional shape including an internal structure of a heart of a subject based on echo image data indicating a cross-sectional image of the heart. The information processing apparatus then generates thorax shape data indicating a three-dimensional shape of a thorax of the subject based on X-ray image data indicating an X-ray image of the thorax of the subject. The information processing apparatus then decides, based on an image of the heart appearing in the X-ray image, a position and an orientation of the three-dimensional shape of the heart indicated by the heart shape data within the three-dimensional shape of the thorax indicated by the thorax shape data.