公开(公告)号：US20050094898A1

公开(公告)日：2005-05-05

申请号：US10946204

申请日：2004-09-21

Applicant: Chenyang Xu ,  Xiaolei Huang ,  Frank Sauer ,  Christophe Chefd'hotel ,  Jens Guhring ,  Sebastian Vogt ,  Yiyong Sun

Inventor： Chenyang Xu ,  Xiaolei Huang ,  Frank Sauer ,  Christophe Chefd'hotel ,  Jens Guhring ,  Sebastian Vogt ,  Yiyong Sun

IPC: G06K9/00 ,  G06K9/64 ,  G06T7/40

CPC classification number: G06K9/00208 ,  G06T7/33 ,  G06T7/35

Abstract: A method of aligning a pair of images with (101) a first image and a second image, wherein said images comprise a plurality of intensities corresponding to a domain of points in a D-dimensional space includes identifying (102) feature points on both images using the same criteria, computing (103) a feature vector for each feature point, measuring a feature dissimilarity (104) for each pair of feature vectors, wherein a first feature vector of each pair is associated with a first feature point on the first image, and a second feature vector of each pair is associated with a second feature point on the second image. A correspondence mapping (105) for each pair of feature points is determined using the feature dissimilarity associated with each feature point pair, and an image transformation (106) is defined to align (108) the second image with the first image using one or more pairs of feature points that are least dissimilar.

Abstract translation: 一种将一对图像与（101）第一图像和第二图像对准的方法，其中所述图像包括对应于D维空间中的点的区域的多个强度，包括在两个图像上识别（102）特征点 使用相同的标准，计算（103）每个特征点的特征向量，测量每对特征向量的特征不相似性（104），其中每对特征向量的第一特征向量与第一图像上的第一特征点相关联 并且每对的第二特征向量与第二图像上的第二特征点相关联。 使用与每个特征点对相关联的特征不相似度来确定每对特征点的对应映射（105），并且定义图像变换（106）以使用一个或多个对象（108）将第二图像与第一图像对准 成对的特征点是最不相似的。

公开(公告)号：US6078638A

公开(公告)日：2000-06-20

申请号：US163494

申请日：1998-09-30

Applicant: Frank Sauer ,  Kwok Tam ,  Bruce Ladendorf

Inventor： Frank Sauer ,  Kwok Tam ,  Bruce Ladendorf

IPC: H04N7/18 ,  A61B6/03 ,  G01N23/04 ,  G06T1/00 ,  G06T11/00

CPC classification number: G06T11/006 ,  A61B6/027 ,  G01N23/046 ,  G01N2223/419 ,  G06T2211/421 ,  Y10S378/901

Abstract: A method and apparatus for three dimensional (3D) computerized tomographic (CT) imaging of a region-of-interest (ROI) in an object, wherein image reconstruction processing is applied to a plurality of sets of pixels of 2D image data, each set being acquired on a pixelated 2D detector. The image reconstruction processing comprises filtering each of the acquired 2D image data sets for developing a corresponding plurality of filtered 2D images; and then 3D backprojecting the filtered 2D images into a common 3D space, thereby reconstructing in the 3D space a 3D image of the ROI in the object. In the present invention the filtering step comprises dividing the pixels of each set of the acquired 2D image data sets into first and second groups, and separately filtering the image data of each group to develop for each group it's own contribution to the corresponding filtered 2D image. In accordance with one embodiment of the invention, the first group essentially comprises those pixels that contribute to a given filtered 2D image in a space-invariant manner, and the second group essentially comprises those pixels that contribute to the given filtered 2D image in a space-variant manner. In accordance with another embodiment of the invention, the first group essentially comprises a contiguous portion of the pixels of each set that are entirely internal to the boundaries of a data combination mask that is applied to each set of the acquired 2D image data, and the second group essentially comprises at least one boundary region of contiguous pixels that are on or adjacent to a data combination mask boundary.

Abstract translation: 一种用于对象中感兴趣区域（ROI）的三维（3D）计算机断层摄影（CT）成像的方法和装置，其中将图像重建处理应用于2D图像数据的多组像素组，每组 被采集在像素化的2D检测器上。 图像重建处理包括对所获取的2D图像数据集中的每一个进行滤波，以显影相应的多个经滤波的2D图像; 然后3D将经滤波的2D图像反投影到公共3D空间中，从而在3D空间中重建对象中的ROI的3D图像。 在本发明中，过滤步骤包括将获取的2D图像数据集的每组的像素划分成第一组和第二组，并且分别对每组的图像数据进行滤波，以对每个组进行显影，它对相应的滤波2D图像有自己的贡献 。 根据本发明的一个实施例，第一组基本上包括以空间不变方式有助于给定的经滤波的2D图像的那些像素，并且第二组基本上包括在空间中有助于给定的滤波2D图像的那些像素 不变的方式。 根据本发明的另一个实施例，第一组基本上包括每个组的像素的连续部分，其全部内部在应用于所获取的2D图像数据的每组的数据组合掩码的边界内部，并且 第二组基本上包括在数据组合掩码边界上或其附近的连续像素的至少一个边界区域。

公开(公告)号：US5970111A

公开(公告)日：1999-10-19

申请号：US109266

申请日：1998-06-30

Applicant: Supun Samarasekera ,  Frank Sauer ,  Kwok Tam ,  Ali R. Bani-Hashemi

Inventor： Supun Samarasekera ,  Frank Sauer ,  Kwok Tam ,  Ali R. Bani-Hashemi

IPC: A61B6/03 ,  G01N23/04 ,  G06T1/00

CPC classification number: G01N23/046 ,  A61B6/027 ,  G01N2223/419 ,  Y10S378/901

Abstract: A computed tomographic imaging apparatus performs three-dimensional (3D) image reconstruction of a region of interest of an object using a plurality of processors for processing successive sets of cone beam measurement data that are acquired by scanning about the object with a cone beam radiation source and an area detector. A central memory has stored therein a plurality of subsets of pre-calculated image processing information, and the plurality of processors are responsive to a given sequence of successive ones of the subsets of pre-calculated image processing information for converting the cone beam measurement data to Radon derivative data on a plurality of Radon .phi.-planes. In a preferred embodiment each of the processors has a first input coupled for receiving in a broadcast manner the successive sets of cone beam measurement data, and a second input coupled for receiving the subsets of pre-calculated image processing information in a given sequence so that each one of the plurality of processors converts the cone beam measurement data broadcast to its second input into Radon derivative data for a respective subset of the Radon .phi.-planes.

Abstract translation: 计算机断层成像装置使用多个处理器来执行对象的感兴趣区域的三维（3D）图像重构，以处理通过用锥束辐射源扫描关于物体的连续的锥束测量数据集合 和区域检测器。 中央存储器在其中存储有多个预先计算的图像处理信息的子集，并且多个处理器响应于预先计算的图像处理信息的子集中的连续的子集的给定序列，用于将锥形束测量数据转换为 氡衍生数据在多个氡气平面上。 在优选实施例中，每个处理器具有耦合的第一输入，用于以广播方式接收连续的锥形束测量数据集合，以及耦合用于以给定序列接收预先计算的图像处理信息的子集的第二输入，使得 多个处理器中的每个处理器将锥形束测量数据广播转换成其第二输入，用于Radon扇形板的相应子集的Radon导数数据。

公开(公告)号：US5901195A

公开(公告)日：1999-05-04

申请号：US940324

申请日：1997-09-30

Applicant: Frank Sauer ,  Supun Samarasekera ,  Kwok Tam

Inventor： Frank Sauer ,  Supun Samarasekera ,  Kwok Tam

IPC: G01N23/04 ,  A61B6/03 ,  G06F17/14 ,  G06T1/00 ,  G06T11/00

CPC classification number: G06T11/006 ,  A61B6/027 ,  G06T2211/421 ,  Y10S378/901

Abstract: A two-step 3D Radon inversion processor for processing Radon data on a set of vertically oriented co-axial .phi.-planes that partition Radon space, wherein each of the .phi.-planes is sampled during the processing so as to have its own independent local Radon origin. In accordance with further principles of the present invention, a 3D Radon data generator generates Radon data on a set of vertically oriented co-axial .phi.-planes that partition Radon space, wherein each of the .phi.-planes is sampled so as to have its own independent local Radon origin, and a two-step 3D Radon inversion processor independently processes each of the .phi.-planes. Any shift of the local Radon origins with respect to a global coordinate system is compensated for during the 3D Radon inversion processing. Compensation for the origin shift may be made during or after a first step of the Radon inversion processing.

Abstract translation: 一种两步3D氡反演处理器，用于处理一组垂直定向的同轴电极上的Radon数据，分配Radon空间，其中每个phi-plane在处理期间被采样，以便拥有自己的独立的本地Radon 起源。 根据本发明的进一步原理，3D氡数据发生器在分配氡空间的一组垂直取向的同轴电极上产生氡数据，其中每个电极被采样以具有其自己的 独立的本地Radon起源，并且两步骤3D Radon倒置处理器独立地处理每个phi-plane。 相对于全局坐标系的本地氡原点的任何偏移在3D氡反演处理期间被补偿。 原点偏移的补偿可以在Radon反转处理的第一步骤期间或之后进行。

公开(公告)号：US5878103A

公开(公告)日：1999-03-02

申请号：US884248

申请日：1997-06-30

Applicant: Frank Sauer ,  Supun Samarasekera

Inventor： Frank Sauer ,  Supun Samarasekera

IPC: A61B6/03 ,  G01N23/04 ,  G06T1/00

CPC classification number: A61B6/032 ,  A61B6/027 ,  G01N23/046 ,  G01N2223/419 ,  Y10S378/901

Abstract: A scanning and data acquisition technique for three dimensional (3D) computerized tomographic (CT) imaging of an object, wherein scanning at a plurality of positions along a source scanning trajectory causes an area detector to acquire cone beam projection data corresponding to a shadow of said object at each of scanning positions and Radon derivative data is calculated by processing line integral values from cone beam projection data. In order to improve the calculation efficiency of the Radon derivative calculation, calculation of the Radon derivative data uses a determination of the left and right boundaries of the shadow for each of the scanning positions, and calculates the Radon derivative data only using projection data from within the determined boundaries.

Abstract translation: 一种用于对象的三维（3D）计算机断层摄影（CT）成像的扫描和数据采集技术，其中沿着源扫描轨迹的多个位置的扫描使得区域检测器获取对应于所述 通过处理来自锥形束投影数据的线积分值来计算每个扫描位置处的物体和氡导数数据。 为了提高Radon微分计算的计算效率，Radon导数数据的计算使用每个扫描位置确定阴影的左边界和右边界，并且仅使用来自内部的投影数据计算氡导数数据 确定的边界。

公开(公告)号：US5862198A

公开(公告)日：1999-01-19

申请号：US940924

申请日：1997-09-30

Applicant: Supun Samarasekera ,  Frank Sauer ,  Kwok Tam

Inventor： Supun Samarasekera ,  Frank Sauer ,  Kwok Tam

IPC: A61B6/03 ,  G06T1/00 ,  H04N7/18

CPC classification number: A61B6/032 ,  A61B6/027 ,  Y10S378/901

Abstract: A method and apparatus for reconstructing an image of an object using a three dimensional (3D) computerized tomographic (CT) imager having a cone beam radiation source and detector arrangement for acquiring measurement data. Before the acquisition of measurement data during an imaging operation of the apparatus, image reconstruction processing information dependant on the geometric parameters of the imager and required for processing of the acquired measurement data for developing contributions to the final reconstruction of the image, is pre-calculated and stored. During an imaging operation of the apparatus, the acquired measurement data is processed using the pre-calculated image reconstruction processing information for reconstructing the image.

Abstract translation: 一种使用具有用于获取测量数据的锥形束辐射源和检测器装置的三维（3D）计算机断层摄影（CT）成像器来重建物体的图像的方法和装置。 在设备的成像操作期间获取测量数据之前，预先计算取决于成像器的几何参数的图像重建处理信息，并且用于处理所获取的测量数据以用于开发对图像的最终重建的贡献 并存储。 在设备的成像操作期间，使用用于重构图像的预先计算的图像重建处理信息来处理所获取的测量数据。

公开(公告)号：US09668704B2

公开(公告)日：2017-06-06

申请号：US10569957

申请日：2004-08-24

Applicant: Kristine Fuimaono ,  Gal Hayam ,  Yuval Karmi ,  Reinmar Killmann ,  Assaf Preiss ,  Norbert Rahn ,  Frank Sauer ,  Chenyang Xu

Inventor： Kristine Fuimaono ,  Gal Hayam ,  Yuval Karmi ,  Reinmar Killmann ,  Assaf Preiss ,  Norbert Rahn ,  Frank Sauer ,  Chenyang Xu

IPC: A61B5/05 ,  A61B6/03 ,  A61B5/055 ,  A61B8/14 ,  A61B5/00 ,  A61B6/00 ,  A61B8/00 ,  A61B18/14 ,  A61B18/00 ,  G01R33/56

CPC classification number: A61B6/032 ,  A61B5/055 ,  A61B5/7285 ,  A61B6/541 ,  A61B8/14 ,  A61B8/543 ,  A61B18/1492 ,  A61B2018/00375 ,  A61B2018/00839 ,  G01R33/5608

Abstract: The invention relates to a device and to a method for visual assistance during the electrophysiological use of a catheter in the heart, enabling electroanatomic 3D mapping data relating to an area of the heart to be treated to be visualized during the use of the catheter. Before the catheter is used, 3D image data of a body region containing the area to be treated is detected by means of a method for tomographic 3D imaging. The area to be treated or significant parts thereof are extracted from said 3D image data, in order to obtain selected 3D image data. The electroanatomic 3D mapping data and the selected 3D image data obtained are then classed in terms of position and dimension, and are adjacently visualized, for example, during the catheter ablation. The inventive method and associated device enable the orientation of the operator to be improved during the use of a catheter in the heart.

公开(公告)号：US09289267B2

公开(公告)日：2016-03-22

申请号：US11383598

申请日：2006-05-16

Applicant: Frank Sauer ,  Ali Khamene ,  Sebastian Vogt

Inventor： Frank Sauer ,  Ali Khamene ,  Sebastian Vogt

IPC: A61B1/00 ,  A61B1/04 ,  A62B1/04 ,  A61B19/00 ,  G06F19/00

CPC classification number: A61B34/20 ,  A61B1/0005 ,  A61B1/04 ,  A61B90/36 ,  A61B2090/364 ,  A61B2090/376 ,  G16H50/50

Abstract: A method and apparatus for presenting three-dimensional data to a physician is provided to facilitate the flexible navigation of an endoscope and surgical instruments with respect to anatomical structures. In accordance with a first embodiment a first set of data corresponding to a three dimensional model of a patient's anatomy is received. This three-dimensional model may be rendered from images taken in CT or MRI scanning, as discussed above. In accordance with this embodiment, this model is then combined with a second set of data corresponding to a view obtained from an endoscope. In another embodiment, the view from the illustrative endoscope is displayed as an inset image on the display of the three-dimensional image. In yet another embodiment, the three-dimensional image comprises a graphical representation of at least a first surgical instrument, such as said endoscope. The surgeon may select among various combinations of views and may zoom in or out from any particular view.

Abstract translation: 提供了一种用于向医师呈现三维数据的方法和装置，以便于内窥镜和外科器械相对于解剖结构的灵活导航。 根据第一实施例，接收对应于患者解剖结构的三维模型的第一组数据。 如上所述，该三维模型可以从在CT或MRI扫描中拍摄的图像呈现。 根据本实施例，然后将该模型与对应于从内窥镜获得的视图的第二组数据组合。 在另一个实施例中，来自说明性内窥镜的视图作为插入图像被显示在三维图像的显示器上。 在另一个实施例中，三维图像包括至少第一外科器械（例如所述内窥镜）的图形表示。 外科医生可以在各种视图组合中进行选择，并且可以放大或缩小任何特定视图。

公开(公告)号：US09078567B2

公开(公告)日：2015-07-14

申请号：US10569958

申请日：2004-08-19

Applicant: Kristine Fuimaono ,  Gal Hayam ,  Yuval Karmi ,  Reinmar Killmann ,  Assaf Preiss ,  Norbert Rahn ,  Frank Sauer ,  Chenyang Xu

Inventor： Kristine Fuimaono ,  Gal Hayam ,  Yuval Karmi ,  Reinmar Killmann ,  Assaf Preiss ,  Norbert Rahn ,  Frank Sauer ,  Chenyang Xu

IPC: A61B5/05 ,  A61B6/03 ,  A61B5/055 ,  A61B8/14 ,  A61B5/00 ,  A61B6/00 ,  A61B8/00 ,  A61B18/14 ,  A61B18/00 ,  G01R33/56

CPC classification number: A61B6/032 ,  A61B5/055 ,  A61B5/7285 ,  A61B6/5247 ,  A61B6/541 ,  A61B8/14 ,  A61B8/543 ,  A61B18/1492 ,  A61B2018/00375 ,  A61B2018/00839 ,  G01R33/5608

Abstract: The invention relates to a method and a device for visually supporting an electrophysiology catheter application in the heart, whereby electroanatomical 3D mapping data of an area of the heart to be treated which are provided during performance of the catheter application are visualized. Before the catheter application is carried out, 3D image data of the area to be treated are recorded by means of a tomographical 3D imaging method, a 3D surface profile of objects in the area to be treated is extracted from the 3D image data by segmentation and the electroanatomical 3D mapping data provided and the 3D images representing the 3D surface profile are associated with each other in the correct position and dimension relative each other and e.g. visualized in an superimposed manner during the catheter application. The present method and the corresponding device allow for an improved orientation of the user who carries out an electrophysiology catheter application in the heart.

Abstract translation: 本发明涉及用于视觉上支持心脏中的电生理学导管应用的方法和装置，由此可视化在执行导管应用过程中提供的待治疗心脏区域的电解剖3D绘图数据。 在执行导管应用之前，通过断层3D成像方法记录待处理区域的3D图像数据，通过分割从3D图像数据中提取待处理区域中的对象的3D表面轮廓， 所提供的电解剖3D图形数据和表示3D表面轮廓的3D图像彼此相对彼此相关联，并且例如彼此相对。 在导管应用期间以叠加的方式显现。 本方法和相应的装置允许在心脏中进行电生理学导管应用的用户的改进的取向。

公开(公告)号：US08196953B2

公开(公告)日：2012-06-12

申请号：US12585122

申请日：2009-09-03

Applicant: Steffen Weigand ,  Frank Sauer

Inventor： Steffen Weigand ,  Frank Sauer

IPC: B60R21/205 ,  B60R21/215

CPC classification number: B60R13/005 ,  B60R2021/21543 ,  Y10T428/24008 ,  Y10T428/24017

Abstract: A film plate for an airbag cover is provided. The film plate is pre-formed by deep-drawing or embossing and is directly, without reinforcing elements, attachable to the airbag cover by mechanical connecting elements. The airbag cover has, at the location of the film plate, at least a partial support for the film plate and the film plate has an embossed structure on its lower side, which is visible on the upper side.

Abstract translation: 提供了一种用于安全气囊盖的胶片板。 薄膜板通过深拉或压花预成型，并且直接地，没有加强元件，通过机械连接元件可附接到安全气囊盖。 安全气囊盖在薄膜板的位置处具有至少一个薄膜板的部分支撑，并且薄膜板在其下侧具有可在上侧看到的压花结构。