公开(公告)号：US08933926B2

公开(公告)日：2015-01-13

申请号：US12736382

申请日：2009-03-31

申请人： Masaki Miyamoto

发明人： Masaki Miyamoto

IPC分类号： G06T15/00 ,  G06T17/00 ,  G06T15/50 ,  A61B6/00 ,  A61B8/08 ,  G06T15/08

CPC分类号： G06T15/503 ,  A61B6/466 ,  A61B8/483 ,  G06T15/08

摘要： When generating a projection image by setting a plurality of search points in an intended display area of a three-dimensional image along a plurality of visual lines, each connecting each pixel on a projection plane on which the three-dimensional image is projected and an arbitrary viewpoint, calculating a pixel value of each search point by an interpolation operation based on pixel values of adjacent pixels of each search point, and determining a pixel value of each pixel on the projection plane with respect to each visual line based on the calculated pixel value of each search point, if an adjacent pixel of a search point is a pixel in an unintended display area, the pixel value of the search point is calculated such that the pixel value of the pixel in the unintended display area does not contribute to the calculation, thereby preventing an artifact arising from the unintended display area.

摘要翻译： 当通过沿着多条视线在三维图像的预期显示区域中设置多个搜索点来生成投影图像时，每个连接投影三维图像的投影平面上的每个像素和任意的 视点，通过基于每个搜索点的相邻像素的像素值的内插操作来计算每个搜索点的像素值，并且基于所计算的像素值确定投影平面上每个像素的像素值 的每个搜索点，如果搜索点的相邻像素是非预期显示区域中的像素，则搜索点的像素值被计算为使得非预期显示区域中的像素的像素值对计算没有贡献 ，从而防止由非预期显示区域产生的伪影。

公开(公告)号：US08659602B2

公开(公告)日：2014-02-25

申请号：US12100790

申请日：2008-04-10

申请人： Jun Masumoto ,  Masaki Miyamoto

发明人： Jun Masumoto ,  Masaki Miyamoto

IPC分类号： G06T15/50

CPC分类号： G06T15/08 ,  G06T15/50

摘要： In an image processing method for generating a pseudo three-dimensional image by a volume rendering method in which a pixel value of each pixel on a projection plane on which a three-dimensional image illuminated by an arbitrary light source is projected is determined using a brightness value at each examination point, which is a point on the three-dimensional image sampled along each of a plurality of visual lines connecting an arbitrary viewpoint and each pixel on the projection plane, an illuminance level at each examination point is calculated based on an opacity level at each calculation point, which is a point on the three-dimensional image sampled along each of a plurality of light rays connecting the light source and each examination point, and the brightness value at each examination point is determined based on the calculated illuminance level.

摘要翻译： 在一种用于通过体绘制方法产生伪三维图像的图像处理方法中，其中使用亮度来确定由任意光源照亮的三维图像投影在其上的投影平面上的每个像素的像素值 在每个检查点的值，该点是沿着连接任意视点和投影平面上的每个像素的多个视线中的每一个采样的三维图像上的点，基于不透明度计算每个检查点处的照度水平 在每个计算点处的水平，其是连接光源和每个检查点的多个光线中的每一个采样的三维图像上的点，并且基于计算出的照度水平来确定每个检查点处的亮度值 。

公开(公告)号：US08634609B2

公开(公告)日：2014-01-21

申请号：US12181899

申请日：2008-07-29

申请人： Jun Masumoto ,  Masaki Miyamoto

发明人： Jun Masumoto ,  Masaki Miyamoto

IPC分类号： G06K9/00

CPC分类号： G06T7/97 ,  A61B5/4872 ,  G06F19/00 ,  G06T7/0012 ,  G06T2207/10072 ,  G16H50/50

摘要： A diagnostic index that indicates a condition of obesity of an abdominal area of a human body with improved reliability is provided. For slice images representing two or more cross-sections of an abdominal area of a subject, a ratio of a size of the subcutaneous fat region and the visceral fat region in the abdominal area to the abdominal area is calculated. Then, the ratio obtained for the subject is compared with a corresponding ratio obtained in advance for a human body model to acquire the diagnostic index indicating the condition of obesity of the subject.

摘要翻译： 提供了一种诊断指标，其指示具有改善的可靠性的人体腹部肥胖的状况。 对于表示受试者的腹部区域的两个或更多个横截面的切片图像，计算腹部区域中的皮下脂肪区域和内脏脂肪区域与腹部区域的比例。 然后，将获得的比例与人体模型预先获得的相应比率进行比较，以获得表示受试者的肥胖状况的诊断指标。

公开(公告)号：US08416239B2

公开(公告)日：2013-04-09

申请号：US12736378

申请日：2009-03-31

申请人： Masaki Miyamoto

发明人： Masaki Miyamoto

IPC分类号： G06T15/00

CPC分类号： G06T15/503 ,  A61B6/466 ,  A61B8/483

摘要： When generating an intermediate image which is an image in the middle of changing from one to the other of two pseudo three-dimensional images generated by ray casting a three-dimensional image from an arbitrary viewpoint under two different opacity level setting conditions, determining an opacity level setting condition by determining an opacity level to be allocated according to each pixel value such that a variation in the opacity level for a change in a changing phase of the intermediate image become smaller as the changing phase approaches closer to a pseudo three-dimensional image generated under either one of the two different opacity level setting conditions in which a smaller value is allocated as the opacity level to be allocated according to each pixel value, and generating an intermediate image by ray casting the three-dimensional image from an arbitrary viewpoint under the determined opacity level setting condition.

摘要翻译： 当在两个不同的不透明度水平设定条件下，通过从任意视点投射三维图像而产生的两个伪三维图像之间的一个到另一个变化的中间生成中间图像时，确定不透明度 通过根据每个像素值确定要分配的不透明度水平，使得随着变化阶段接近于伪三维图像，中间图像的变化阶段的变化的不透明度水平的变化变小，从而确定水平设置条件 在两个不同的不透明度水平设置条件中的任一个下生成，其中根据每个像素值分配较小的值作为要分配的不透明度水平，并且通过从任意视点投射三维图像来生成中间图像 确定的不透明度水平设置条件。

公开(公告)号：US20120053408A1

公开(公告)日：2012-03-01

申请号：US13221405

申请日：2011-08-30

申请人： Masaki MIYAMOTO

发明人： Masaki MIYAMOTO

IPC分类号： A61B1/04

CPC分类号： G06T7/0044 ,  G06T7/74 ,  G06T19/20 ,  G06T2207/10068 ,  G06T2207/10072 ,  G06T2207/10124 ,  G06T2207/20221 ,  G06T2210/41 ,  G06T2219/2012

摘要： Endoscopic images and virtual endoscopic images are obtained. Then, an endoscopic image captured at a predetermined position of the anatomical structure is extracted from the obtained endoscopic images, and a comparative virtual endoscopic image virtually generated as if it is captured at a position corresponding to the predetermined position is extracted from the obtained virtual endoscopic images, and the extracted images are associated with each other. A three-dimensional position corresponding to each pixel forming the endoscopic image captured at the predetermined position is calculated based on a three-dimensional position of each pixel forming the comparative virtual endoscopic image. Then, volume data is generated from the endoscopic image captured at the predetermined position based on a pixel value of each pixel forming the endoscopic image and the three-dimensional position calculated for each pixel.

摘要翻译： 获得内窥镜图像和虚拟内窥镜图像。 然后，从所获得的内窥镜图像中提取在解剖结构的预定位置处拍摄的内窥镜图像，并且从获得的虚拟内窥镜中提取虚拟生成的比较虚拟内窥镜图像，如同在与预定位置相对应的位置处被捕获 图像，并且提取的图像彼此相关联。 基于形成比较虚拟内窥镜图像的每个像素的三维位置来计算与形成在预定位置处捕获的内窥镜图像的每个像素对应的三维位置。 然后，根据构成内窥镜图像的各像素的像素值和为每个像素计算的三维位置，从在预定位置拍摄的内窥镜图像生成体数据。

公开(公告)号：US20120033866A1

公开(公告)日：2012-02-09

申请号：US13264863

申请日：2010-04-15

申请人： Jun Masumoto ,  Masaki Miyamoto

发明人： Jun Masumoto ,  Masaki Miyamoto

IPC分类号： G06K9/00

CPC分类号： G06T19/00 ,  A61B5/055 ,  A61B5/4255 ,  A61B6/466

摘要： Structures in the vicinity of a target point (point of interest) within a diagnostic image are enabled to be observed in detail from multiple directions. Overview images (8, 9) that represent the overview of a structure (e.g., the large intestine) are generated based on volume data, and displayed on the screen (5) of a display. Points within the overview images and points corresponding thereto in the volume data are set as target points. Target volumes that include the target points and line of sight vectors within the volume data having the target points as endpoints and a movable viewpoint as a starting point are set within the volume data. The directions of the line of sight vectors are changed, and the target volumes are projected onto projection planes perpendicular to the directions of the line of sight vectors to generate detailed images (11) that represent details of the structure in the vicinity of the target points . The detailed images (11) which are generated accompanying changes in the line of sight direction are displayed sequentially or alongside each other on the screen.

摘要翻译： 能够从多个方向详细观察诊断图像内的目标点（兴趣点）附近的结构。 基于体积数据生成表示结构（例如大肠）概况的概要图像（8,9），并显示在显示器的屏幕（5）上。 在卷数据中的与其对应的概览图像和点内的点被设置为目标点。 将具有目标点的卷数据内的目标点和视线矢量的目标体积作为端点，将可移动视点作为起点设置在体积数据内。 改变视线矢量的方向，将目标体积投影到与视线矢量的方向垂直的投影面上，生成表示目标点附近的结构细节的详细图像（11） 。 伴随着视线方向的变化而产生的详细图像（11）在屏幕上顺序地或彼此并排地显示。

公开(公告)号：US08059876B2

公开(公告)日：2011-11-15

申请号：US12127687

申请日：2008-05-27

申请人： Jun Masumoto ,  Masaki Miyamoto

发明人： Jun Masumoto ,  Masaki Miyamoto

IPC分类号： G06K9/00

CPC分类号： G06T7/0012 ,  G06T7/246 ,  G06T2207/30048

摘要： A position obtainment means obtains the positions of points in the heart of a subject that are present in at least two three-dimensional volume datasets in a group of three-dimensional volume datasets that have been obtained by imaging the heart of the subject at predetermined time intervals, the points anatomically corresponding to each other, and the at least two three-dimensional volume datasets having been obtained by imaging at different time from each other. A function information obtainment means obtains, based on each of the positions of the points in the heart, which have been obtained by the position obtainment means, function information representing the function of the heart at each point within a three-dimensional space. A display means displays, based on the function information, the motion function of the heart at each of the points in an image that has the shape of the heart of the subject.

摘要翻译： 位置获取装置获得存在于通过在预定时间对对象的心脏进行成像而获得的三维体数据集的组中的至少两个三维体数据集中存在的对象的心脏中的点的位置 间隔，解剖学上彼此对应的点，以及通过在不同时间彼此成像而获得的至少两个三维体数据集。 功能信息获取装置基于由位置获取装置获得的心脏中的点的每个位置获得表示三维空间内的每个点的心脏的功能的功能信息。 显示装置基于功能信息，在具有被摄体的心脏的形状的图像中的每个点处显示心脏的运动功能。

公开(公告)号：US20110242097A1

公开(公告)日：2011-10-06

申请号：US13017302

申请日：2011-01-31

申请人： Masaki MIYAMOTO

发明人： Masaki MIYAMOTO

IPC分类号： G06T15/00

CPC分类号： G06T15/08 ,  G06T15/20

摘要： In generating a virtual endoscopic image, an interior of a lumen is made viewable even when the viewpoint position is changed. A virtual endoscopic image generation element generates a virtual endoscopic image by volume rendering based on three-dimensional data. An opacity curve setting element sets an opacity curve which defines the relationship between pixel values of the three-dimensional data and opacity values. A viewpoint position setting element sets a viewpoint position of a virtual endoscopic image. A movement amount determination element determines a movement amount of the opacity curve with respect to an opacity curve at a reference viewpoint position. When a virtual endoscopic image is generated by the virtual endoscopic image generation element, the opacity curve setting element sets an opacity curve obtained by moving the opacity curve by the determined movement amount in the virtual endoscopic image generation element.

摘要翻译： 在产生虚拟内窥镜图像时，即使当视点位置改变时，内腔的内部也是可见的。 虚拟内窥镜图像生成元件通过基于三维数据的体绘制生成虚拟内窥镜图像。 不透明度曲线设置元素设置不透明度曲线，其定义三维数据和不透明度值的像素值之间的关系。 视点位置设定元件设定虚拟内窥镜图像的视点位置。 移动量确定元件确定不透明度曲线相对于参考视点位置处的不透明度曲线的移动量。 当由虚拟内窥镜图像生成元件生成虚拟内窥镜图像时，不透明度曲线设定元件将通过在虚拟内窥镜图像生成元件中确定的移动量移动不透明度曲线而获得的不透明度曲线设定。

公开(公告)号：US07943892B2

公开(公告)日：2011-05-17

申请号：US12100794

申请日：2008-04-10

申请人： Jun Masumoto ,  Masaki Miyamoto

发明人： Jun Masumoto ,  Masaki Miyamoto

IPC分类号： H01L27/00 ,  G06T15/00

CPC分类号： G06T15/20 ,  G06T11/008 ,  G06T15/08

摘要： Projection is performed in such a manner that the same point on a moving internal organ can be constantly observed, thereby improving the accuracy of diagnosis. Motion information about the motion of a projection target between one set of three-dimensional volume data in a group of sets of three-dimensional volume data and a different set of three-dimensional volume data in the group of sets of three-dimensional volume data that was obtained by imaging at a different time from the time of imaging of the one set of three-dimensional volume data is obtained based on the projection target that is present in the one set of three-dimensional volume data and the projection target that is present in the different set of three-dimensional volume data. Then, the viewpoint of projection is moved to a position at which the projection target in the different set of three-dimensional volume data can be projected.

摘要翻译： 以能够不间断地观察移动的内脏的同一点的方式进行投影，提高诊断的准确性。 关于一组三维体积数据的一组三维体积数据中的投影目标的运动的运动信息和三维体积数据组的组中的不同的三维体积数据集的运动信息 基于在一组三维体数据中存在的投影对象和投影对象，获得通过在与一组三维体数据的成像时间不同的时间成像获得的投影对象 呈现在不同的三维体积数据集中。 然后，将投影的视点移动到能够投射不同的三维体积数据的投影对象物的位置。

公开(公告)号：US20080259282A1

公开(公告)日：2008-10-23

申请号：US12100794

申请日：2008-04-10

申请人： Jun MASUMOTO ,  Masaki Miyamoto

发明人： Jun MASUMOTO ,  Masaki Miyamoto

IPC分类号： G03B21/14

CPC分类号： G06T15/20 ,  G06T11/008 ,  G06T15/08

摘要： Projection is performed in such a manner that the same point on a moving internal organ can be constantly observed, thereby improving the accuracy of diagnosis. Motion information about the motion of a projection target between one set of three-dimensional volume data in a group of sets of three-dimensional volume data and a different set of three-dimensional volume data in the group of sets of three-dimensional volume data that was obtained by imaging at a different time from the time of imaging of the one set of three-dimensional volume data is obtained based on the projection target that is present in the one set of three-dimensional volume data and the projection target that is present in the different set of three-dimensional volume data. Then, the viewpoint of projection is moved to a position at which the projection target in the different set of three-dimensional volume data can be projected.

摘要翻译： 以能够不间断地观察移动的内脏的同一点的方式进行投影，提高诊断的准确性。 关于一组三维体积数据的一组三维体积数据中的投影目标的运动的运动信息和三维体积数据组的组中的不同的三维体积数据集的运动信息 基于在一组三维体数据中存在的投影对象和投影对象，获得通过在与一组三维体数据的成像时间不同的时间成像获得的投影对象 呈现在不同的三维体积数据集中。 然后，将投影的视点移动到能够投射不同的三维体积数据的投影对象物的位置。