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    1.
    发明专利
    未知

    公开(公告)号：DE602004017000D1

    公开(公告)日：2008-11-20

    申请号：DE602004017000

    申请日：2004-06-16

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： MOVASSAGHI BABAK ,  RASCHE VOLKER

    IPC: G06T11/00

    Abstract: 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.

    2.
    发明专利
    未知

    公开(公告)号：DE602004002939T2

    公开(公告)日：2007-06-21

    申请号：DE602004002939

    申请日：2004-02-03

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： RASCHE VOLKER ,  MOVASSAGHI BABAK

    IPC: G06T7/00 ,  G06T11/00 ,  G06T17/10

    Abstract: The invention provides a method for 3D modeling of a three-dimensional tubular structure of an examination object from 2D projection images (D) of the structure taken from different projection directions. The method has the following steps: reconstruction of a 3D image from the 2D projection images (D); selection of at least one 3D central line point (MO) in the 3D image, said 3D central line point being located in the structure; segmentation of 3D central line points (M) of the structure in the 3D image; forward projection of the 3D central line points (M), which have been segmented in the 3D image, into 2D projection images (D'); determination of border points of the structure in the 2D projection images (D') on the basis of 3D central line points (Z) that have been projected in; and back-projection of the border points from the 2D projection image (D') into the 3D image.

    Producing 4D image data records of moving tubular structure involves recording 3D central line points projected into second 2D images to obtain 2D central line points, iterating for more phases
    3.
    发明专利
    Producing 4D image data records of moving tubular structure involves recording 3D central line points projected into second 2D images to obtain 2D central line points, iterating for more phases 未知

    公开(公告)号：DE10247832A1

    公开(公告)日：2004-04-22

    申请号：DE10247832

    申请日：2002-10-14

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： MOVASSAGHI BABAK ,  RASCHE VOLKER ,  GRASS MICHAEL

    IPC: G06T11/00 ,  G06T1/00

    Abstract: The method involves determining central 2D central line points in 2D projection images of a first movement phase, modeling first 3D central line points in the same phase, projecting the first 3D central line points into second 2D images of a second phase, recording the 3D central line points projected into the second 2D images to obtain 2D central line points, iterating, determining the profile in the 2D images and reconstructing 3D images. The method involves determining central 2D central line points in at least two 2D projection images acquired in the same first movement phase (S1), modeling first 3D central line points in the same first phase (S2), projecting the first 3D central line points into at least two second 2D images acquired in a second phase (S3), recording the 3D central line points projected into the second 2D images to obtain 2D central line points (S4), iterating for more phases, determining the profile of the tubular structure element in the 2D images (S6) and reconstructing 3D images in different phases (S7). Independent claims are also included for the following: (a) an arrangement for producing four-dimensional image data records of a moving tubular structure (b) a computer program with a computer program arrangement for causing a computer to implement the inventive method.

    4.
    发明专利
    未知

    公开(公告)号：DE602004001973D1

    公开(公告)日：2006-09-28

    申请号：DE602004001973

    申请日：2004-01-23

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： WEESE JUERGEN ,  RASCHE VOLKER ,  YOUNG STEWART ,  MOVASSAGHI BABAK

    IPC: G06T7/00 ,  G06T5/00 ,  G06T17/10

    Abstract: 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.

    7.
    发明专利
    未知

    公开(公告)号：DE602004001973T2

    公开(公告)日：2007-10-18

    申请号：DE602004001973

    申请日：2004-01-23

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： WEESE JUERGEN ,  RASCHE VOLKER ,  YOUNG STEWART ,  MOVASSAGHI BABAK

    IPC: G06T7/00 ,  G06T5/00 ,  G06T17/10

    Abstract: 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.

    8.
    发明专利
    未知

    公开(公告)号：DE602004002939D1

    公开(公告)日：2006-12-07

    申请号：DE602004002939

    申请日：2004-02-03

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： RASCHE VOLKER ,  MOVASSAGHI BABAK

    IPC: G06T7/00 ,  G06T11/00 ,  G06T17/10

    Abstract: The invention provides a method for 3D modeling of a three-dimensional tubular structure of an examination object from 2D projection images (D) of the structure taken from different projection directions. The method has the following steps: reconstruction of a 3D image from the 2D projection images (D); selection of at least one 3D central line point (MO) in the 3D image, said 3D central line point being located in the structure; segmentation of 3D central line points (M) of the structure in the 3D image; forward projection of the 3D central line points (M), which have been segmented in the 3D image, into 2D projection images (D'); determination of border points of the structure in the 2D projection images (D') on the basis of 3D central line points (Z) that have been projected in; and back-projection of the border points from the 2D projection image (D') into the 3D image.

    DEVICE, METHOD, COMPUTER-READABLE MEDIUM AND PROGRAM ELEMENT FOR PROCESSING IMAGE DATA OF A MOVABLE OBJECT, AND ROTATIONAL X-RAY ANGIOGRAPHY APPARATUS
    10.
    发明申请
    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
    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：WO2006038166A3

    公开(公告)日：2007-08-30

    申请号：PCT/IB2005053217

    申请日：2005-09-29

    Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  BUELOW THOMAS ,  LORENZ CRISTIAN ,  MOVASSAGHI BABAK ,  RASCHE VOLKER

    Inventor： BUELOW THOMAS ,  LORENZ CRISTIAN ,  MOVASSAGHI BABAK ,  RASCHE VOLKER

    IPC: G06T11/00

    CPC classification number: G06T11/005 ,  G06T2211/404 ,  G06T2211/412

    Abstract: 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.

    Abstract translation: 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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