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1. 发明申请

WO2004068412A1 METHOD FOR THE RECONSTRUCTION OF THREE-DIMENSIONAL OBJECTS 审中-公开
标题翻译：重建三维物体的方法
公开(公告)号：WO2004068412A1
公开(公告)日：2004-08-12
申请号：PCT/IB2004/000185
申请日：2004-01-23
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , WEESE, Jürgen , RASCHE, Volker , YOUNG, Stewart , MOVASSAGHI, Babak
发明人： WEESE, Jürgen , RASCHE, Volker , YOUNG, Stewart , MOVASSAGHI, Babak
IPC分类号： G06T7/00
CPC分类号： G06T7/11 , G06T7/55 , G06T2207/10121 , G06T2207/20156 , G06T2207/30101
摘要： The invention relates to a method for the computer-aided reconstruction of a three-dimensional anatomical object (3) from diagnostic image data. First of all, a diagnostic image data set of the object (3) is acquired. Then a seed point (5) is set, starting from which the object is reconstructed within a reconstruction volume (4). Thereafter, an adjacent point of the reconstruction volume (4) likewise belonging to the object (3) is located in accordance with a propagation criterion, which is calculated by means of a mathematical analysis of local areas (6, 7), assigned to the point concerned, of the image data set. Reconstruction of the three-dimensional structure of the object (3) is then performed within the reconstruction volume (4) by multiple repetition of this method step and propagation along the located adjacent points. To apply such a reconstruction method to image data obtained by means of rotational X-ray imaging, wherein a plurality of two-dimensional projection images (1, 2) are recorded from different projection directions, the invention proposes that the propagation criterion be calculated by subjecting the local image areas (6, 7) of the two-dimensional projection images (1, 2) in each case individually to the mathematical analysis.
摘要翻译：本发明涉及一种用于从诊断图像数据计算机辅助重构三维解剖体（3）的方法。首先，获取对象（3）的诊断图像数据集。然后设置种子点（5），从重建体积（4）中重建对象开始。此后，同样属于对象（3）的重构体积（4）的相邻点根据通过局部区域（6,7）的数学分析计算的传播标准来定位，分配给关注图像数据集。然后通过该方法步骤的多次重复和沿着定位的相邻点的传播，在重构体积（4）内重构物体（3）的三维结构。为了将这种重建方法应用于通过旋转X射线成像获得的图像数据，其中从不同的投影方向记录多个二维投影图像（1,2），本发明提出传播准则由在每种情况下对二维投影图像（1,2）的局部图像区域（6,7）进行数学分析。

2. 发明申请

WO2004036502A1 FORMATION OF A 4D (3D+T) IMAGE DATA SET OF A MOVING TUBULAR STRUCTURE 审中-公开
标题翻译：形成运动管状结构的4D（3D + T）图像数据集
公开(公告)号：WO2004036502A1
公开(公告)日：2004-04-29
申请号：PCT/IB2003/004413
申请日：2003-10-08
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , MOVASSAGHI, Babak , RASCHE, Volker , GRASS, Michael
发明人： MOVASSAGHI, Babak , RASCHE, Volker , GRASS, Michael
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G06T2211/412
摘要： The invention relates to a method and a device suitable for the formation of a 4D image data set of a three-dimensional tubular structure of an object to be examined, being subject to a periodic motion, from a number of 2D projection images (D) of the tubular structure which have been acquired from different projection directions and in different phases of motion, the periodic motion being represented by a motion signal (E) acquired in parallel with the acquisition of the 2D projection images (D). In order to obtain an as accurate as possible 4D image data set, in accordance with the invention it is proposed to determine 2D center line points (Z) in tubular structure elements (H) in at least two 2D projection images (D) of a first phase of motion, to extract therefrom a first model of 3D center line points (M) and to project these points into further 2D projection images (D) of other phases of motion. The 3D center line points (M) projected therein are automatically registered, so that ultimately the course of the tubular structure element (H) in the individual 2D projection images (D) is obtained, ultimately allowing the reconstruction of 3D images of the tubular structure in different phases of motion. The method in accordance with the invention is preferably used for the formation of a 4D image data set of the coronary vessels of a patient.
摘要翻译：本发明涉及一种适于从多个2D投影图像（D）形成待检查物体的三维管状结构的4D图像数据集的方法和装置，其被进行周期性运动，已经从不同的投影方向和不同运动阶段获取的管状结构，周期运动由与2D投影图像（D）的获取并行获取的运动信号（E）表示。为了获得尽可能准确的4D图像数据集，根据本发明，建议在至少两个2D投影图像（D）中确定管状结构元件（H）中的2D中心线点（Z）第一阶段的运动，从中提取3D中心线点（M）的第一模型，并将这些点投影到其他运动阶段的另外的2D投影图像（D）中。投影在其中的3D中心线点（M）被自动登记，从而最终获得单个2D投影图像（D）中的管状结构元件（H）的过程，最终允许重建管状结构的3D图像在不同的运动阶段。根据本发明的方法优选用于形成患者的冠状血管的4D图像数据集。

3. 发明申请

WO2007138526A3 HIERARCHICAL MOTION ESTIMATION 审中-公开
公开(公告)号：WO2007138526A3
公开(公告)日：2007-12-06
申请号：PCT/IB2007/051915
申请日：2007-05-21
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHÄFER, Dirk , ENGLER, Andreas , MOVASSAGHI, Babak , RASCHE, Volker , GRASS, Michael
发明人： SCHÄFER, Dirk , ENGLER, Andreas , MOVASSAGHI, Babak , RASCHE, Volker , GRASS, Michael
IPC分类号： A61B6/00 , A61B6/03 , G06T3/00 , G06T7/00 , G06T7/20
摘要： In three-dimensional rotational x-ray coronary imaging problems may arise when estimating the motion of small vessels. According to an exemplary embodiment of the present invention, an examination apparatus is provided which is adapted for performing a hierarchical motion estimation by global affine transformation for every heart phase, followed by vessel branch selective affine and non-affine transformations. This may provide for an improved image quality.

4. 发明申请

WO2003105017A3 ANALYSIS OF A MULTI-DIMENSIONAL STRUCTURE 审中-公开
公开(公告)号：WO2003105017A3
公开(公告)日：2003-12-18
申请号：PCT/IB2003/002161
申请日：2003-05-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , RASCHE, Volker , MOVASSAGHI, Babak , GRASS, Michael
发明人： RASCHE, Volker , MOVASSAGHI, Babak , GRASS, Michael
IPC分类号： G06T7/00
摘要： A method is provided for analysis of a multi-dimensional structure which includes a tubular structure from two-dimensional datasets for respective pre-determined projection directions. A pair of corresponding initial projected centre points of the tubular structure is identified in two respective initial and further two-dimensional datasets.Projected edges of the tubular structure in said initial two-dimensional datasets and in said further two-dimensional dataset near the respective projected centre points are identified. A local size of the tubular structure is derived at the three-dimensional spatial position of the centre point of the tubular structure from said projected edges and the predetermined projection directions.

5. 发明申请

WO2003105017A2 ANALYSIS OF A MULTI-DIMENSIONAL STRUCTURE 审中-公开
标题翻译：多维结构分析
公开(公告)号：WO2003105017A2
公开(公告)日：2003-12-18
申请号：PCT/IB2003/002161
申请日：2003-05-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , RASCHE, Volker , MOVASSAGHI, Babak , GRASS, Michael
发明人： RASCHE, Volker , MOVASSAGHI, Babak , GRASS, Michael
IPC分类号： G06F15/60
CPC分类号： G06T7/60 , G06T7/593 , G06T2207/30101 , Y10S128/922
摘要： A method is provided for analysis of a multi-dimensional structure which includes a tubular structure from two-dimensional datasets for respective pre-determined projection directions. A pair of corresponding initial projected centre points of the tubular structure is identified in two respective initial and further two-dimensional datasets.Projected edges of the tubular structure in said initial two-dimensional datasets and in said further two-dimensional dataset near the respective projected centre points are identified. A local size of the tubular structure is derived at the three-dimensional spatial position of the centre point of the tubular structure from said projected edges and the predetermined projection directions.
摘要翻译：提供了一种用于分析多维结构的方法，其包括用于各个预定投影方向的二维数据集的管状结构。管状结构的一对对应的初始投影中心点在两个相应的初始和另外的二维数据集中被识别。所述初始二维数据集中的所述管状结构的边缘以及所述另外的二维数据集中的相应投影确定中心点。在管状结构的中心点从所述投影边缘和预定投影方向的三维空间位置导出管状结构的局部尺寸。

6. 发明申请

WO2004081877A1 MOTION-CORRECTED THREE-DIMENSIONAL VOLUME IMAGING METHOD 审中-公开
标题翻译：运动校正三维体积成像方法
公开(公告)号：WO2004081877A1
公开(公告)日：2004-09-23
申请号：PCT/IB2004/050239
申请日：2004-03-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , RASCHE, Volker , MOVASSAGHI, Babak , BOOSTEN, Marcel
发明人： RASCHE, Volker , MOVASSAGHI, Babak , BOOSTEN, Marcel
IPC分类号： G06T11/00
CPC分类号： A61B6/5264 , A61B6/00 , A61B6/503 , A61B6/508 , A61B6/541 , G01N23/046 , G01N2223/419 , G01N2223/612 , G06T11/005 , G06T2211/404 , G06T2211/412
摘要： An X-ray imaging method forms a set of a plurality of two-dimensional X-Ray projection images of a medical or veterinary object to be examined through a scanning rotation by an X-Ray source viz à viz the object. Such X-Ray images are acquired at respective predetermined time instants with respect to a functionality process produced by the object. From said set of X-Ray projection images by back-projection a three-dimensional volume image of the object is reconstructed. In particular, an appropriate motion correction is derived for the respective two-dimensional images, and subsequently as based on a motion vector field from the various corrected two-dimensional images the intended three-dimensional volume is reconstructed.
摘要翻译： X射线成像方法通过由X射线源进行扫描旋转来形成待检查的医疗或兽医物体的多个二维X射线投影图像的集合，即X射线源。相对于由对象产生的功能处理，在相应的预定时刻获取这样的X射线图像。通过反投影从所述X射线投影图像组中重构对象的三维体积图像。特别地，针对相应的二维图像导出适当的运动校正，并且随后基于来自各种校正的二维图像的运动矢量场来重建预期的三维体积。

7. 发明申请

WO2004114221A1 DEVICE TO GENERATE A THREE-DIMENSIONAL IMAGE OF A MOVED OBJECT 审中-公开
标题翻译：用于生成移动对象的三维图像的设备
公开(公告)号：WO2004114221A1
公开(公告)日：2004-12-29
申请号：PCT/IB2004/050923
申请日：2004-06-16
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , MOVASSAGHI, Babak , RASCHE, Volker
发明人： MOVASSAGHI, Babak , RASCHE, Volker
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G06T2211/404 , G06T2211/412
摘要： The invention relates to a method and a device for generating a threedimensional image of an object (9) such as in particular the heart, from a series of (X-ray) projection pictures (P i , P j , P k , P l ). For the reconstruction only those projection pictures are used in which the projection lines (l i , l k , l l ) of a characteristic object feature intersect at approximately the same spatial point ( r 0 ). The characteristic object feature can in particular be a vessel branch which can easily be located on the projection pictures.
摘要翻译：本发明涉及从一系列（X射线）投影图像（Pi，Pj，Pk，Pl）生成诸如特别是心脏的物体（9）的三维图像的方法和装置。对于重构，仅使用投影图像，其中特征对象特征的投影线（li，lk，ll）在大致相同的空间点（r0）处相交。特征对象特征可以特别地是可以容易地位于投影图像上的血管分支。

8. 发明申请

WO2005052862A1 THREE-DIMENSIONAL RECONSTRUCTION OF AN OBJECT FROM PROJECTION PHOTOGRAPHS 审中-公开
标题翻译：投影摄影对象三维重建
公开(公告)号：WO2005052862A1
公开(公告)日：2005-06-09
申请号：PCT/IB2004/052436
申请日：2004-11-16
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , RASCHE, Volker , MOVASSAGHI, Babak
发明人： RASCHE, Volker , MOVASSAGHI, Babak
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G06T7/70 , G06T2211/412
摘要： The invention relates to a method for the three-dimensional reconstruction of an object such as for example a stent (5) in the coronary vessels of a patient. In the course of this, a series of X-ray projection photographs (A,,) are produced from different directions, with the relevant ECG phase (E„) being recorded simultaneously. On the projection photographs (A,,), the position of feature points (R, Q) is segmented (a). The photographs (A„) are furthermore allocated (b) into classes (K p ) according to their belonging to different sections (E p cl ) of the heartbeat phase. For each of these classes, the corresponding spatial position ((x,y,z)Qp) of the feature points is established (e). In the next step (d), from the positions of the feature points (R, Q) that are now known for various heartbeat phases, the displacement vectors (SR p _ m , SQ p _ m ) or generally the transformations (Ep m ) are calculated which link (d) the positions of the feature points for different heartbeat phases (p, m). With the aid of these transformations, in a last step (e) a three-dimensional reconstruction can then be carried out for the whole stent (5) or its surroundings, by referring back to all the X-ray projection photographs from different heartbeat phases (p l, p2). In an alternative embodiment of the invention, projection photographs of a moving body volume are transformed such that the images of feature points that are located on the photographs respectively come to rest at a place on which (randomly) set spatial reference positions for the feature points are projected. With the projection photographs that are thus aligned onto the reference positions, three-dimensional reconstruction of the object can subsequently take place.
摘要翻译：本发明涉及用于诸如例如患者的冠状血管中的支架（5）的物体的三维重建的方法。在此过程中，从不同方向产生一系列X射线投影照片（A ,,），同时记录相关的ECG相位（E“），在投影照片（A ,,）上，位置特征点（R，Q）被分割（a），照片（A“）根据其属于心跳阶段的不同部分（Ep ）进一步分配（类别）（K）。对于这些类中的每一个，建立特征点的对应空间位置（（x，y，z）Qp）（e）。在下一步（d）中，从各种心跳相位现在已知的特征点（R，Q）的位置，计算位移矢量<（SR> p_m，SQp_m）或通常的变换（Ep m）哪个链接（d）不同心跳阶段（p，m）的特征点的位置。借助于这些变换，在最后一步（e）中，可以通过参考来自不同心跳阶段的所有X射线投影照片，对整个支架（5）或其周围环境进行三维重建（pl，p2）。在本发明的替代实施例中，变换移动体体积的投影照片，使得位于照片上的特征点的图像分别在特征点（随机）设置的空间参考位置的位置处休息被投射。利用因此对准在参考位置上的投影照片，可以随后进行物体的三维重建。

9. 发明申请

WO2004072903A2 METHOD FOR THE 3D MODELING OF A TUBULAR STRUCTURE 审中-公开
标题翻译：一种管状结构三维建模方法
公开(公告)号：WO2004072903A2
公开(公告)日：2004-08-26
申请号：PCT/IB2004/000261
申请日：2004-02-03
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , RASCHE, Volker , MOVASSAGHI, Babak
发明人： RASCHE, Volker , MOVASSAGHI, Babak
IPC分类号： G06T11/00
CPC分类号： G06T11/008 , G06T17/10 , G06T2211/404 , G06T2211/412
摘要： The invention relates to a method for the 3D modeling of a three-dimensional tubular structure of an examination object from a number of 2D projection images (D) of the tubular structure (H) taken from different projection directions. In order to be able to implement such a method with considerably less user interaction while retaining the same degree of accuracy, the following steps are proposed according to the invention: a) reconstruction of a 3D image (B) from the 2D projection images (D), b) selection of at least one 3D central line point (MO) in the 3D image (B), said 3D central line point being located in the tubular structure (H), c) segmentation of other 3D central line points (M) of the tubular structure (H) in the 3D image (B), d) forward projection of the 3D central line points (M), which have been segmented in the 3D image (B), into the 2D projection images (D'), e) determination of border points of the tubular structure (H) in the 2D projection images (D') on the basis of the 3D central line points (Z) that have been projected in, and f) back-projection of the border points from the 2D projection images (D') into the 3D image (B).
摘要翻译：本发明涉及一种从不同投影方向取得的管状结构（H）的多个2D投影图像（D）的三维管状结构的三维建模方法。为了能够在保持相同程度的精度的同时实现这种具有相当少的用户交互的方法，根据本发明提出了以下步骤：a）从2D投影图像（D）重建3D图像（B）），b）选择3D图像（B）中的至少一个3D中心线点（MO），所述3D中心线点位于管状结构（H）中，c）分割其他3D中心线点（M ）D）3D图像（B）中的管状结构（H）的向前投影，d）已经被分割在3D图像（B）中的3D中心线点（M）向前投影到2D投影图像），e）基于已投影的3D中心线点（Z）确定2D投影图像（D'）中的管状结构（H）的边界点，以及f）反投影从2D投影图像（D'）到3D图像（B）的边界点。

10. 发明申请

WO2006038166A2 DEVICE, METHOD, COMPUTER-READABLE MEDIUM AND PROGRAM ELEMENT FOR PROCESSING IMAGE DATA OF A MOVABLE OBJECT, AND ROTATIONAL X-RAY ANGIOGRAPHY APPARATUS 审中-公开
标题翻译：装置，方法，用于处理可移动对象的图像数据的计算机可读介质和程序元件，以及旋转X射线摄影装置
公开(公告)号：WO2006038166A2
公开(公告)日：2006-04-13
申请号：PCT/IB2005/053217
申请日：2005-09-29
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , BÜLOW, Thomas , LORENZ, Cristian , MOVASSAGHI, Babak , RASCHE, Volker
发明人： BÜLOW, Thomas , LORENZ, Cristian , MOVASSAGHI, Babak , RASCHE, Volker
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G06T2211/404 , G06T2211/412
摘要： A device (104) for processing image data of a movable object (101), the device (104) comprising a processor adapted to carry out the method steps of receiving (410) an image data set reflecting a two-dimensional image according to a particular twodimensional projection of the movable object (101) at a particular point of time, determining (420) an initial model for the two-dimensional image, wherein the initial model is determined based on predetermined structural information about the movable object (101) and based on predetermined motion characteristics of the movable object (101), and modifying (430) the determined initial model to obtain a final model for the two-dimensional image.
摘要翻译：一种用于处理可移动物体（101）的图像数据的设备（104），所述设备（104）包括处理器，所述处理器适于执行所述方法步骤，以接收（410）反映二维图像的图像数据集确定（420）二维图像的初始模型，其中基于关于可移动物体（101）的预定结构信息和基于所述可移动物体（101）的预定运动特性，并且修改（430）所确定的初始模型以获得所述二维图像的最终模型。

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