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公开(公告)号:US07559694B2
公开(公告)日:2009-07-14
申请号:US11293940
申请日:2005-12-05
申请人: Sébastien Gorges , Yves Lucien Trousset , Jérémie Pescatore , Erwan Kerrien , Marie-Odile Berger , Régis Vaillant
发明人: Sébastien Gorges , Yves Lucien Trousset , Jérémie Pescatore , Erwan Kerrien , Marie-Odile Berger , Régis Vaillant
IPC分类号: G01D18/00
CPC分类号: A61B6/584 , A61B6/4441 , A61B6/583 , G06T11/005
摘要: A method for determining acquisition geometry of an imaging system from a set of calibration matrices for an arbitrary position of the system, a projection matrix makes a point in a 2D image correspond to a point of an object in a space. This matrix is produced for any unspecified position of the system from knowledge of a limited number of pre-computed calibration matrices. For instance, a projection matrix may be computed by interpolating coefficients of calibration matrices and/or applying a transformation with a rigid model defined comprehensively or locally to a particular calibration matrix.
摘要翻译: 一种用于从系统的任意位置的一组校准矩阵确定成像系统的采集几何的方法,投影矩阵使2D图像中的点对应于空间中的对象的点。 根据有限数量的预先计算的校准矩阵的知识,对于该系统的任何未指定的位置产生该矩阵。 例如,投影矩阵可以通过内插校准矩阵的系数和/或应用具有全局或局部定义到特定校准矩阵的刚性模型来进行变换来计算。
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公开(公告)号:US08315690B2
公开(公告)日:2012-11-20
申请号:US11906445
申请日:2007-10-02
IPC分类号: A61B5/05
CPC分类号: A61B6/12 , A61B5/061 , A61B5/11 , A61B6/02 , A61B6/5217 , A61B8/0833 , A61B34/20 , A61B2034/2051
摘要: An interventional device configured for placement in or near an internal organ or tissue is provided. The interventional device includes a reference portion having three or more sensor elements. In one implementation, the interventional device and associated sensor elements provide dynamic referencing of the internal organ, tissue or associated vasculature after registration of the sensor data with images and/or volumetric representations of the internal organ or tissue.
摘要翻译: 提供了构造用于放置在内部器官或组织内或附近的介入装置。 介入装置包括具有三个或更多个传感器元件的参考部分。 在一个实施方案中,介入装置和相关联的传感器元件在将传感器数据登记到内部器官或组织的图像和/或体积表示之后提供内部器官,组织或相关联的脉管系统的动态参考。
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公开(公告)号:US20080306378A1
公开(公告)日:2008-12-11
申请号:US12055120
申请日:2008-03-25
IPC分类号: A61B6/12
CPC分类号: A61B5/06 , A61B6/4441 , A61B6/481 , A61B6/504 , A61B6/5235 , A61B34/20 , A61B90/36 , A61B2034/2051 , A61B2090/364 , A61B2090/374 , A61B2090/376 , A61B2090/3958 , A61B2090/3975
摘要: A method for registering images acquired by at least one imaging system. The method includes:positioning at least a first sensor (S) interdependent on the imaging system; positioning at least a second sensor (P) so as to make it interdependent on the movements of an organ of a patient of which at least two images are taken; acquiring the positions of said sensors (S, P) during acquisitions of the images; and registering the images according to the positions of the sensors (S, P). A system for registering images acquired by at least one imaging system includes means for acquiring the position of at least a first sensor interdependent on the imaging system and of at least a second sensor interdependent on the movements of an organ of a patient of which two images are taken, the registration being performed according to the positions of the sensors at the moment when the images are acquired.
摘要翻译: 一种用于记录由至少一个成像系统获取的图像的方法。 该方法包括:至少定位与成像系统相互依赖的第一传感器(S); 定位至少第二传感器(P),以使其相互依赖于至少采用两个图像的患者的器官的移动; 在获取图像期间获取所述传感器(S,P)的位置; 并根据传感器(S,P)的位置登记图像。 用于登记由至少一个成像系统获取的图像的系统包括用于获取至少第一传感器相对于成像系统和至少第二传感器的位置的装置,所述至少第二传感器相互依赖于患者的器官的运动,其中两个图像 根据获取图像时的传感器的位置进行登记。
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