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    System and method for creating a panoramic view of a volumetric image
    51.
    发明授权
    System and method for creating a panoramic view of a volumetric image 有权
    用于创建体积图像的全景视图的系统和方法

    公开(公告)号：US07609910B2

    公开(公告)日：2009-10-27

    申请号：US11100177

    申请日：2005-04-06

    Applicant: Bernhard Geiger ,  Sandra Sudarsky ,  Christophe Chefd'hotel

    Inventor： Bernhard Geiger ,  Sandra Sudarsky ,  Christophe Chefd'hotel

    IPC: G06K9/36

    CPC classification number: G06T19/00 ,  G06T15/08 ,  G06T2210/41 ,  G06T2215/08 ,  G06T2219/021

    Abstract: A system and method for creating a panoramic projection of a volumetric image of an object is disclosed. A virtual camera is placed in a center of a cubic space within the object. Images obtained from the camera are projected onto a single plane. A front image is mapped in a window at a center of the plane. A left, right, top and bottom image of the cubic space are mapped around the rectangular window such that the left, right, top and bottom images form a continuous image surrounding the rectangular window.

    Abstract translation: 公开了一种用于创建物体的体积图像的全景投影的系统和方法。 将虚拟相机放置在对象内的立方体空间的中心。 从相机获得的图像投影到单个平面上。 前视图映射在平面中心的窗口中。 立方体空间的左，右，上，下图像被映射到矩形窗口周围，使得左，右，顶和底图像形成围绕矩形窗口的连续图像。

    Method and apparatus for registration of virtual endoscopic images
    54.
    发明授权
    Method and apparatus for registration of virtual endoscopic images 失效
    用于注册虚拟内窥镜图像的方法和装置

    公开(公告)号：US07300398B2

    公开(公告)日：2007-11-27

    申请号：US10915501

    申请日：2004-08-09

    Applicant: Christophe Chefd′hotel ,  Bernhard Geiger

    Inventor： Christophe Chefd′hotel ,  Bernhard Geiger

    IPC: A61B1/00 ,  A61B1/04 ,  G06K9/00

    CPC classification number: G06T7/38 ,  G06T7/33 ,  G06T2207/10081 ,  G06T2207/10088 ,  G06T2207/30028

    Abstract: A method for registration of virtual endoscopy images in first and second patient positions comprises performing colon segmentation and feature extraction, including centerline and colon surface data for each of the images; resampling the centerline and colon surface data; computing respective local descriptors; pairing point correspondences on the centerlines between the first and second images by minimal cost matching; extrapolating the centerline point correspondences to a 3-dimensional/3-dimensional (3D/3D) transformation between the first and second images. The method also includes selecting a position for a virtual endoscope in one of the images; associating an orthogonal reference frame with the virtual endoscope; and applying the 3D/3D transformation to the orthogonal reference frame so as to derive a corresponding transformed reference frame for the virtual endoscope in the other of the images.

    Abstract translation: 用于在第一和第二患者位置注册虚拟内窥镜检查图像的方法包括执行冒号分割和特征提取，包括每个图像的中心线和结肠表面数据; 重新取样中线和结肠表面数据; 计算相应的局部描述符; 通过最小成本匹配在第一和第二图像之间的中心线上的配对点对应; 将中心线点对应于第一和第二图像之间的三维/三维（3D / 3D）变换。 该方法还包括在图像之一中选择虚拟内窥镜的位置; 将正交参考帧与虚拟内窥镜相关联; 以及将3D / 3D变换应用于正交参考帧，以便在另一个图像中导出虚拟内窥镜的对应变换的参考帧。

    Method and apparatus for needle placement and entry point determination in percutaneous procedures
    55.
    发明授权
    Method and apparatus for needle placement and entry point determination in percutaneous procedures 有权

    公开(公告)号：US07295869B2

    公开(公告)日：2007-11-13

    申请号：US10683653

    申请日：2003-10-10

    Applicant: Benedicte Bascle ,  Nassir Navab ,  Bernhard Geiger

    Inventor： Benedicte Bascle ,  Nassir Navab ,  Bernhard Geiger

    IPC: A61B19/00

    CPC classification number: A61B90/10 ,  A61B10/0233 ,  A61B34/10 ,  A61B2090/376

    Abstract: A method for determining the best entry point for a percutaneous procedure, such as with a biopsy needle, comprises selecting first and second arbitrary entry points on a patient; determining the three dimensional (3-D) orientation of the needle at the first arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the first arbitrary entry point for pointing the needle at the secondary target; determining the 3-D dimensional orientation of the needle at the second arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the second arbitrary entry point for pointing the needle at the secondary target; determining a 3-D line representing the intersection of a first plane containing the first arbitrary entry point, the primary target point, and the secondary target point, and a second plane containing the second arbitrary entry point, the primary target, and the secondary target point, whereby the 3-D line provides a position and orientation for the needle for performing needle biopsy of the primary target through the secondary target.

    Method and apparatus for needle placement and entry point determination in percutaneous procedures
    56.
    发明授权
    Method and apparatus for needle placement and entry point determination in percutaneous procedures 有权
    用于经皮手术中针头放置和入口点确定的方法和装置

    公开(公告)号：US07295868B2

    公开(公告)日：2007-11-13

    申请号：US10683652

    申请日：2003-10-10

    Applicant: Benedicte Bascle ,  Nassir Navab ,  Bernhard Geiger

    Inventor： Benedicte Bascle ,  Nassir Navab ,  Bernhard Geiger

    IPC: A61B19/00

    CPC classification number: A61B90/10 ,  A61B10/0233 ,  A61B34/10 ,  A61B2090/376

    Abstract: A method for determining the best entry point for a percutaneous procedure, such as with a biopsy needle, comprises selecting first and second arbitrary entry points on a patient; determining the three dimensional (3-D) orientation of the needle at the first arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the first arbitrary entry point for pointing the needle at the secondary target; determining the 3-D dimensional orientation of the needle at the second arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the second arbitrary entry point for pointing the needle at the secondary target; determining a 3-D line representing the intersection of a first plane containing the first arbitrary entry point, the primary target point, and the secondary target point, and a second plane containing the second arbitrary entry point, the primary target, and the secondary target point, whereby the 3-D line provides a position and orientation for the needle for performing needle biopsy of the primary target through the secondary target.

    Abstract translation: 用于确定经皮程序的最佳入口点的方法，例如用活检针，包括选择患者的第一和第二任意入口点; 确定针在第一任意入口处的针的三维（3-D）取向，用于将针指向主要目标; 确定所述针在所述第一任意入口点处的3-D取向以将所述针指向所述次级靶; 确定针在第二任意入口点处的针的三维尺寸取向以将针指向主要目标; 确定针在第二任意进入点处的针的三维取向以将针指向次级靶; 确定表示包含第一任意入口点，主要目标点和次要目标点的第一平面的交点的3-D线以及包含第二任意入口点，主要目标和次要目标的第二平面 点，其中3-D线提供针的位置和取向，用于通过次级靶进行主要靶的针活检。

    Trigonometric depth gauge for biopsy needle
    57.
    发明授权
    Trigonometric depth gauge for biopsy needle 失效
    活检针三角测深仪

    公开(公告)号：US07245958B1

    公开(公告)日：2007-07-17

    申请号：US08722724

    申请日：1996-09-30

    Applicant: Nassir Navab ,  Bernhard Geiger

    Inventor： Nassir Navab ,  Bernhard Geiger

    IPC: A61B5/05

    CPC classification number: A61B17/3403 ,  A61B6/12 ,  A61B6/4441 ,  A61B34/70 ,  A61B90/11 ,  A61B2017/3405 ,  A61B2090/034 ,  A61B2090/062 ,  A61B2090/376

    Abstract: Apparatus for determining a proper insertion depth of a biopsy needle to be inserted at a selected point on the body of a patient so that a sampling end of the needle just reaches to a designated target area within the body, comprises at least one straight calibrated pointing device, having a pivot point at one end thereof, and aligned to point through the selected point in a straight line passing through the designated target region, an image of the pointing device being formed on each of first and second image planes by utilizing radiation from respective first and second radiation source positions, along with images corresponding to the selected point and the target area. Needles are provided for casting an image on one at least one of the image planes, the needles being pivotably mounted at a further pivot point different from the pivot point of the pointing device and being constrained for movement in plane defined by the pivot point, the further pivot point and by the pointing device.

    Abstract translation: 用于确定要插入到患者身体上的选定点处的活检针的适当插入深度的装置，使得针的采样端刚刚到达身体内的指定目标区域，包括至少一个直线校准指示 装置，在其一端具有枢转点，并且对齐以指向穿过指定目标区域的直线中的所选点，通过利用来自第一和第二图像平面的辐射形成指示装置的图像， 各自的第一和第二辐射源位置，以及对应于所选择的点和目标区域的图像。 提供用于在一个至少一个图像平面上投射图像的针，所述针可枢转地安装在不同于指示装置的枢转点的另一个枢转点处，并被限制为在由枢轴点限定的平面中移动， 进一步的枢轴点和指示装置。

    Method for providing a virtual contrast agent for augmented angioscopy
    60.
    发明授权
    Method for providing a virtual contrast agent for augmented angioscopy 有权
    提供用于增强血管镜检查的虚拟造影剂的方法

    公开(公告)号：US06711433B1

    公开(公告)日：2004-03-23

    申请号：US09408930

    申请日：1999-09-30

    Applicant: Bernhard Geiger ,  Nassir Navab

    Inventor： Bernhard Geiger ,  Nassir Navab

    IPC: A61B600

    CPC classification number: A61B6/481 ,  A61B5/055 ,  A61B6/463 ,  A61B6/504 ,  A61B6/5235 ,  G06T11/008 ,  G06T17/00 ,  G06T2211/404

    Abstract: A method for providing a virtual contrast agent for blood vessels in a body portion for angioscopy comprising deriving data from a 3D model using, for example, magnetic resonance imaging, computerized tomography (CT), and 3D angio. The data is segmented to provide a segmented 3D model of the blood vessels. A first procedure image is made with a contrast agent present. The 3D model is then registered with the first procedural image and “virtual camera parameters” are obtained. The 3D model is rendered and overlaid onto a second procedure image without contrast, whereby a virtual contrast is achieved.

    Abstract translation: 一种用于在用于血管镜检查的身体部分中为血管提供虚拟造影剂的方法，包括使用例如磁共振成像，计算机断层摄影（CT）和3D血管从3D模型导出数据。 数据被分段以提供血管的分段3D模型。 使用存在的造影剂进行第一程序图像。 然后将3D模型与第一程序图像一起注册，并获得“虚拟相机参数”。 将3D模型渲染并覆盖到没有对比度的第二过程图像上，从而实现虚拟对比。

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