专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06912471B2 Processing method for a volume dataset 有权
标题翻译：卷数据集的处理方法
公开(公告)号：US06912471B2
公开(公告)日：2005-06-28
申请号：US10626210
申请日：2003-07-24
申请人： Benno Heigl , Joachim Hornegger , Marcus Prümmer
发明人： Benno Heigl , Joachim Hornegger , Marcus Prümmer
IPC分类号： A61B5/00 , A61B19/00 , G06T15/08 , G06F19/00 , A61B8/06
CPC分类号： G06T15/08 , A61B34/20 , A61B90/36 , A61B2090/364
摘要： A volume dataset describes at least one tubular vessel and its environment. For processing the volume dataset, an operating point is first defined. A computer then determines slice planes containing the operating point and a sectional area enclosed by the vessel and contained in the respective slice plane for each of the slice planes. Finally, the computer determines the slice plane with the minimum sectional area and determines a working slice plane on the basis of this slice plane.
摘要翻译：体数据集描述了至少一个管状血管及其环境。要处理卷数据集，首先定义一个工作点。然后，计算机确定包含操作点的切片平面和由容器包围并包含在每个切片平面的相应切片平面中的截面面积。最后，计算机确定具有最小截面积的切片平面，并基于该切片平面确定工作切片平面。

2. 发明授权

US08183529B2 Method for three-dimensional presentation of a moved structure using a tomographic method 有权
标题翻译：使用断层摄影法对移动结构进行三维显示的方法
公开(公告)号：US08183529B2
公开(公告)日：2012-05-22
申请号：US12378793
申请日：2009-02-19
申请人： Joachim Hornegger , Günter Lauritsch , Marcus Prümmer , Christopher Rohkohl
发明人： Joachim Hornegger , Günter Lauritsch , Marcus Prümmer , Christopher Rohkohl
IPC分类号： G01T1/20 , G06K9/00 , A61N5/10
CPC分类号： A61B6/032 , A61B6/4441 , A61B6/466 , G06T11/005 , G06T2211/412
摘要： The invention relates to a method for three-dimensional presentation of a moved structure using a tomographic method, in which a plurality of projection images are recorded from different imaging angles between a start angle with a start node point and an end angle with an end node point by an imaging unit during a number of rotation passes, with three-dimensional image data being able to be reconstructed from the projection images, with the projection images being spaced by a path or an edge. For determining the three-dimensional presentation for each angle of projection only those projection images are selected which minimize the sum of the paths or weighted edges between adjacent projection angles for a gating.
摘要翻译：本发明涉及一种使用断层摄影方法对移动结构进行三维呈现的方法，其中从与起点节点的开始角度与终端节点的终止角度之间的不同成像角度记录多个投影图像在多次旋转通过期间由成像单元指向，其中三维图像数据能够从投影图像重建，其中投影图像被路径或边缘间隔开。为了确定每个投影角度的三维呈现，仅选择那些最小化用于门控的相邻投影角之间的路径或加权边缘之和的投影图像。

3. 发明授权

US07546154B2 Method and apparatus for automatic detection of anomalies in vessel structures 有权
标题翻译：用于自动检测血管结构异常的方法和装置
公开(公告)号：US07546154B2
公开(公告)日：2009-06-09
申请号：US10836946
申请日：2004-04-30
申请人： Joachim Hornegger , Marcus Prümmer
发明人： Joachim Hornegger , Marcus Prümmer
IPC分类号： A61B5/05
CPC分类号： G06T7/0012 , G06T2207/10072 , G06T2207/20044 , G06T2207/30101
摘要： In a method and apparatus for fully automatic detection of anomalies in vessel structures, a 3D volume data set of an imaging 3D measurement of the vessel structure is obtained and, for an evaluation device, the vessel structure is detected in the 3D volume data set and subsequently is skeletonized in order to obtain a three-dimensional course of skeletonization paths. Characteristic quantities of the vessel structure are automatically determined along the skeletonization paths as features that are significant for an anomaly to be detected, in order obtain one or more feature series. The determined feature series are classified by non-linear imaging and comparison with reference feature series that have been determined for different classes of known vessel structures that contain different anomalies and known vessel structures without anomalies. Anomalies corresponding to the classification thus are identified.
摘要翻译：在用于全自动检测血管结构异常的方法和装置中，获得血管结构的成像3D测量的3D体积数据集，并且对于评估装置，在3D体积数据集中检测血管结构，随后被骷髅化以获得三维路线的骨架化路径。沿着骨架化路径自动确定容器结构的特征量，作为要检测的异常的特征，以获得一个或多个特征序列。确定的特征系列通过非线性成像和与参考特征序列进行比较，该参考特征系列已经针对包含不同异常的已知血管结构和已知血管结构的不同类别确定，而没有异常。识别与分类对应的异常。

4. 发明授权

US08103075B2 Method for providing extended possibilities when imaging a patient's heart 有权
标题翻译：在对患者心脏进行成像时提供扩展可能性的方法
公开(公告)号：US08103075B2
公开(公告)日：2012-01-24
申请号：US12070884
申请日：2008-02-21
申请人： Jan Boese , Joachim Hornegger , Günter Lauritsch , Marcus Prümmer
发明人： Jan Boese , Joachim Hornegger , Günter Lauritsch , Marcus Prümmer
IPC分类号： G06K9/00
CPC分类号： G06T19/00 , A61B6/4441 , A61B6/486 , A61B6/503 , A61B6/5211 , A61B6/5264 , A61B6/5288 , G06T7/30 , G06T2207/10072 , G06T2207/10116 , G06T2207/10124 , G06T2207/30048 , G06T2210/41
摘要： The invention relates to the use of 2D projection images which belong to a specific common heart phase. A 3D image data set can be used to generate a reference projection image for the same projection angle for each of the 2D projection images and a differential image can be derived from the reference projection image and 2D projection image. The differential images are back-projected and combined in one 3D differential image data set and, by using this, a deformed 3D image data set is obtained from the previously recorded 3D image data set. Iterations guarantee that the deformed 3D image data set ensues with the smallest possible distance from the 2D projection images for the existing common heart phase. Finally, a 3D image data set is available for a different heart phase other than the reference heart phase and the possibilities for imaging a patient's heart are extended.
摘要翻译：本发明涉及属于特定共同心脏相位的二维投影图像的应用。可以使用3D图像数据集来为每个2D投影图像生成用于相同投影角的参考投影图像，并且可以从参考投影图像和2D投影图像导出差分图像。差分图像被反投影并组合在一个3D差分图像数据集中，并且通过使用它，从先前记录的3D图像数据集获得变形的3D图像数据集。迭代保证变形的3D图像数据集随着现有共同心脏相位的2D投影图像的最小可能距离而发生。最后，3D图像数据集可用于除参考心脏相以外的不同心脏相位，并且延长了对患者心脏进行成像的可能性。

5. 发明授权

US08027526B2 Method for providing a 3D X-ray image dataset of a patient's heart 有权
标题翻译：用于提供患者心脏的3D X射线图像数据集的方法
公开(公告)号：US08027526B2
公开(公告)日：2011-09-27
申请号：US11980229
申请日：2007-10-30
申请人： Jan Boese , Joachim Hornegger , Günter Lauritsch , Marcus Prümmer
发明人： Jan Boese , Joachim Hornegger , Günter Lauritsch , Marcus Prümmer
IPC分类号： A61B6/03
CPC分类号： G06T7/20 , A61B5/7289 , A61B6/032 , A61B6/466 , A61B6/503 , A61B6/5288 , G06T2207/30048 , Y10S378/901
摘要： X-ray images are recorded of a patient's heart and the heartbeat phase is registered as that is done. The heartbeat phases are coarsely divided into intervals and all X-ray images that have been assigned heartbeat phase from the interval are used for reconstructing a 3D image dataset. The movement fields of the other 3D image datasets are then calculated for one of said 3D image datasets. Movement fields are vector fields indicating the movements of similar structures from one local area to the other. A departure is then made from the coarse interval division, and for each heartbeat phase a movement field is interpolated individually or at least for fairly short intervals from the movement fields determined in advance, which field is used for generating a deformed 3D image dataset that has been imaged onto a reference heartbeat phase. The deformed 3D image datasets are then added together.
摘要翻译：记录患者心脏的X射线图像，并记录心跳阶段。将心跳阶段粗略划分为间隔，并且已经从间隔分配了心跳期的所有X射线图像用于重建3D图像数据集。然后针对所述3D图像数据集之一计算其它3D图像数据集的运动场。运动场是指示类似结构从一个局部区域到另一个局部区域的运动的向量场。然后从粗间隔划分出发，并且对于每个心跳阶段，移动场单独或至少相对于预先确定的运动场的相当短的间隔进行内插，该场用于生成变形的3D图像数据集，其具有被成像到参考心跳期。然后将变形的3D图像数据集加在一起。

6. 发明申请

US20080089468A1 Method for reconstructing a three-dimensional image volume and x-ray devices 有权
标题翻译：重建三维图像体积和x射线装置的方法
公开(公告)号：US20080089468A1
公开(公告)日：2008-04-17
申请号：US11897348
申请日：2007-08-30
申请人： Benno Heigl , Stefan Hoppe , Joachim Hornegger , Ernst-Peter Ruhrnschopf , Holger Scherl , Bernhard Scholz , Michael Zellerhoff
发明人： Benno Heigl , Stefan Hoppe , Joachim Hornegger , Ernst-Peter Ruhrnschopf , Holger Scherl , Bernhard Scholz , Michael Zellerhoff
IPC分类号： A61B6/03
CPC分类号： G01N23/046 , A61B6/027 , A61B6/032 , A61B6/4458 , G01N2223/419 , G01N2223/612
摘要： To enable an artifact free reconstruction even in the case of large regions of interest and with scanning paths of below 360°, provision is made for a method, with which a three-dimensional image volume is reconstructed from a number of two-dimensional projection images of a region of interest, which were recorded about the region of interest during a rotation of a recording system, comprising an x-ray source with a focal point and a detector, by calculating the gray scale values of the voxels of the image volume by back projection of the projection images, with which each two-dimensional projection images is composed in each instance from at least two individual projection images to form an extended two-dimensional projection image, with the respectively at least two individual projection images being recorded with a constant relative position between the focal point and the region of interest.
摘要翻译：为了即使在感兴趣的大区域和360度以下的扫描路径的情况下也能够实现无伪影重建，提供一种方法，利用该方法从多个二维投影图像重建三维图像体积通过计算图像体积的体素的灰度值，通过计算图像体积的体素的灰度值，记录关于记录系统旋转期间的感兴趣区域的感兴趣区域，其包括具有焦点和检测器的x射线源投影图像的背投影，每个二维投影图像在每个实例中由至少两个单独的投影图像组成，以形成扩展的二维投影图像，分别具有至少两个单独的投影图像被记录有焦点和感兴趣区域之间的常数相对位置。

7. 发明申请

US20080181367A1 Method for determining gray-scale values for volume elements of bodies to be mapped 有权
标题翻译：用于确定要映射的物体的体积元素的灰度值的方法
公开(公告)号：US20080181367A1
公开(公告)日：2008-07-31
申请号：US12008943
申请日：2008-01-15
申请人： Benno Heigl , Stefan Hoppe , Joachim Hornegger , Gunter Lauritsch
发明人： Benno Heigl , Stefan Hoppe , Joachim Hornegger , Gunter Lauritsch
IPC分类号： G01D18/00
CPC分类号： A61B6/4028 , A61B6/032 , A61B6/583
摘要： The invention relates to a method for determining gray-scale values for volume elements of bodies to be mapped using an x-ray image recording system. When a body to be mapped is not mapped in full on a single projection image for a rotational position, a second projection image must be made and a virtual projection image derived from the two projection images, this being back-projected onto the volume elements. For calibration the present invention proposes making the same two projection images in each case at a calibration phantom and additionally a further projection image, corresponding to the position and orientation of the virtual projection image. As a result the mathematical relationships between the projection images and the virtual projection image and for the back-projection can be derived.
摘要翻译：本发明涉及一种用于使用X射线图像记录系统确定要映射的身体的体积元素的灰度值的方法。当要映射的物体没有完全映射到用于旋转位置的单个投影图像上时，必须制作第二投影图像，并且从两个投影图像得到的虚拟投影图像被反投影到体积元件上。为了进行校准，本发明提出了在校准模型中的每种情况下制作相同的两个投影图像，另外还提供了与虚拟投影图像的位置和取向相对应的另外的投影图像。因此，可以推导出投影图像与虚拟投影图像之间的数学关系以及背投影的数学关系。

8. 发明授权

US07780351B2 Method for determining gray-scale values for volume elements of bodies to be mapped 有权
标题翻译：用于确定要映射的物体的体积元素的灰度值的方法
公开(公告)号：US07780351B2
公开(公告)日：2010-08-24
申请号：US12008943
申请日：2008-01-15
申请人： Benno Heigl , Stefan Hoppe , Joachim Hornegger , Günter Lauritsch
发明人： Benno Heigl , Stefan Hoppe , Joachim Hornegger , Günter Lauritsch
IPC分类号： G01D18/00
CPC分类号： A61B6/4028 , A61B6/032 , A61B6/583
摘要： The invention relates to a method for determining gray-scale values for volume elements of bodies to be mapped using an x-ray image recording system. When a body to be mapped is not mapped in full on a single projection image for a rotational position, a second projection image must be made and a virtual projection image derived from the two projection images, this being back-projected onto the volume elements. For calibration the present invention proposes making the same two projection images in each case at a calibration phantom and additionally a further projection image, corresponding to the position and orientation of the virtual projection image. As a result the mathematical relationships between the projection images and the virtual projection image and for the back-projection can be derived.
摘要翻译：本发明涉及一种用于使用X射线图像记录系统确定要映射的身体的体积元素的灰度值的方法。当要映射的物体没有完全映射到用于旋转位置的单个投影图像上时，必须制作第二投影图像，并且从两个投影图像得到的虚拟投影图像被反投影到体积元件上。为了进行校准，本发明提出了在校准模型中的每种情况下制作相同的两个投影图像，另外还提供了与虚拟投影图像的位置和取向相对应的另外的投影图像。因此，可以推导出投影图像与虚拟投影图像之间的数学关系以及背投影的数学关系。

9. 发明授权

US07711083B2 Method for reconstructing a three-dimensional image volume and x-ray devices 有权
标题翻译：重建三维图像体积和x射线装置的方法
公开(公告)号：US07711083B2
公开(公告)日：2010-05-04
申请号：US11897348
申请日：2007-08-30
申请人： Benno Heigl , Stefan Hoppe , Joachim Hornegger , Ernst-Peter Rührnschopf , Holger Scherl , Bernhard Scholz , Michael Zellerhoff
发明人： Benno Heigl , Stefan Hoppe , Joachim Hornegger , Ernst-Peter Rührnschopf , Holger Scherl , Bernhard Scholz , Michael Zellerhoff
IPC分类号： A61B6/00
CPC分类号： G01N23/046 , A61B6/027 , A61B6/032 , A61B6/4458 , G01N2223/419 , G01N2223/612
摘要： To enable an artifact free reconstruction even in the case of large regions of interest and with scanning paths of below 360°, provision is made for a method, with which a three-dimensional image volume is reconstructed from a number of two-dimensional projection images of a region of interest, which were recorded about the region of interest during a rotation of a recording system, comprising an x-ray source with a focal point and a detector, by calculating the gray scale values of the voxels of the image volume by back projection of the projection images, with which each two-dimensional projection images is composed in each instance from at least two individual projection images to form an extended two-dimensional projection image, with the respectively at least two individual projection images being recorded with a constant relative position between the focal point and the region of interest.
摘要翻译：为了即使在感兴趣的大区域和360度以下的扫描路径的情况下也能够实现无伪影重建，提供一种方法，利用该方法从多个二维投影图像重建三维图像体积通过计算图像体积的体素的灰度值，通过计算图像体积的体素的灰度值，记录关于记录系统旋转期间的感兴趣区域的感兴趣区域，其包括具有焦点和检测器的x射线源投影图像的背投影，每个二维投影图像在每个实例中由至少两个单独的投影图像组成，以形成扩展的二维投影图像，分别具有至少两个单独的投影图像被记录有焦点和感兴趣区域之间的常数相对位置。

10. 发明授权

US09269144B2 Method and apparatus for motion correction and image enhancement for optical coherence tomography 有权
标题翻译：用于光学相干断层扫描的运动校正和图像增强的方法和装置
公开(公告)号：US09269144B2
公开(公告)日：2016-02-23
申请号：US13097785
申请日：2011-04-29
申请人： Martin F. G. Kraus , Benjamin M. Potsaid , James G. Fujimoto , Markus Anton Mayer , Ruediger Bock , Joachim Hornegger
发明人： Martin F. G. Kraus , Benjamin M. Potsaid , James G. Fujimoto , Markus Anton Mayer , Ruediger Bock , Joachim Hornegger
IPC分类号： G06T7/00 , A61B3/10
CPC分类号： G06T11/006 , A61B3/0025 , A61B3/102 , G06T7/248 , G06T7/30 , G06T2207/10101 , G06T2207/30041
摘要： Images of an object, such as OCT scans of a human eye, can include distortions and data gaps due to relative motion of the object and the image acquisition device. Methods and systems for correction of such distortions and data gaps are described herein. Motion-corrected data is arrived at by applying three-dimensional transforms to input three-dimensional data sets that represent at least partially overlapping regions of the imaged object. The three dimensional transforms are computed based on an objective function that accounts for similarity between the transformed three-dimensional data sets and the estimated motion of the object relative to an imaging instrument. Methods and systems described herein advantageously eliminate the need for postulated assumptions and reliance on landmarks and are capable of filling data gaps, thereby producing high quality, undistorted images of objects subject to movement during imaging. Multiple motion-corrected data sets can be merged or combined to produce a data set with improved image quality.
摘要翻译：诸如人眼的OCT扫描的物体的图像可能包括由于物体和图像采集装置的相对运动引起的失真和数据间隙。本文描述了用于校正这种失真和数据间隙的方法和系统。通过应用三维变换来输入表示成像对象的至少部分重叠区域的三维数据集来获得运动校正数据。基于目标函数来计算三维变换，该目标函数考虑了变换的三维数据集之间的相似性以及物体相对于成像仪器的估计的运动。本文描述的方法和系统有利地消除了对假定假设和对地标的依赖的需要，并且能够填补数据间隙，从而产生在成像期间经受运动的物体的高质量，未失真的图像。可以将多个运动校正数据集合或组合以产生具有改进的图像质量的数据集。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式