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    • 2. 发明申请
    • IMAGE PROCESSING
    • 图像处理
    • WO2009016509A2
    • 2009-02-05
    • PCT/IB2008002569
    • 2008-07-30
    • DEPUY ORTHOPAEDIE GMBHBORNFLETH HARALD
    • BORNFLETH HARALD
    • G06T7/251A61B6/583G06T7/33G06T2207/10116G06T2207/30008G06T2207/30204
    • A method and image processing system for correcting motion artefacts in captured projection images of a body part caused by movement relative to the co-ordinate system of an imaging system between capture of the images are described. A first image data set is obtained representing a first captured image of the body part for which the imaging system had a first geometry. A second image data set is obtained representing a second captured image of the same body part for which the imaging system had a second geometry and in which the second captured image is from a different direction to the first captured image. The position of at least a first anatomical landmark point is identified in the first captured image from first image data set. The position of the at least first anatomical landmark point is projected into the second captured image. A transformation required to map the position of the same anatomical landmark point from the second image data set onto the projected position of the at least first anatomical landmark is determined. The so determined transformation represents the true position of the body part relative to the imaging system when the second image was captured.
    • 描述了一种方法和图像处理系统,用于校正在拍摄图像之间相对于成像系统的坐标系的运动引起的身体部位的拍摄投影图像中的运动伪影。 获得表示成像系统具有第一几何形状的身体部位的第一拍摄图像的第一图像数据集。 获得第二图像数据集,其表示成像系统具有第二几何形状并且其中第二捕获图像与第一拍摄图像不同的方向的相同身体部位的第二拍摄图像。 在来自第一图像数据集的第一捕获图像中识别出至少第一解剖学地标点的位置。 将至少第一解剖学地标点的位置投影到第二捕获图像中。 确定将相同解剖学地标点的位置从第二图像数据集映射到至少第一解剖学地标的投影位置所需的变换。 如此确定的变换表示当捕获第二图像时身体部分相对于成像系统的真实位置。
    • 3. 发明申请
    • TRACKING SURGICAL ITEMS
    • 跟踪手术项目
    • WO2007052160A3
    • 2007-10-04
    • PCT/IB2006003825
    • 2006-08-21
    • DEPUY ORTHOPAEDIE GMBHBURGER THORSTEN
    • BURGER THORSTEN
    • A61B19/00
    • A61B90/36A61B34/20A61B2017/00477A61B2017/00725A61B2034/2055A61B2034/2068A61B2034/256A61B2090/3983
    • A kit of parts, surgical item, method for adapting a surgical item and computer implemented method for tracking a marked surgical item are described. The kit of parts can include a surgical item, a marker assembly and at least one further marker separate to the marker assembly. The marker assembly comprises at least two markers and can be attached to the surgical item at a plurality of positions. The further marker can be mounted on the surgical item at a fixed position on the surgical item relative to a part of the surgical item to be tracked. When assembled, the position of said further marker relative to said marker assembly allows a tracking system to track the part of the surgical item with the marker assembly at any of the plurality of positions.
    • 描述了一套零件,外科用品,用于适应手术物品的方法和计算机实施的用于跟踪标记的手术物品的方法。 所述部件套件可包括手术部件,标记组件以及与所述标记组件分开的至少一个另外的标记。 标记组件包括至少两个标记,并且可以在多个位置附接到手术物品。 另外的标记可以相对于待跟踪的外科手术物品的一部分被安装在外科手术物品上的固定位置上。 当组装时,所述另外的标记相对于所述标记组件的位置允许跟踪系统利用所述标记组件在所述多个位置中的任一位置跟踪所述手术物品的所述部分。