首页> 外国专利> Method for reducing geometric deviations caused due to reconstruction of three-dimensional image data set of patient, involves determining corrected projection images by applying geometric errors to distortion of original projection images

Method for reducing geometric deviations caused due to reconstruction of three-dimensional image data set of patient, involves determining corrected projection images by applying geometric errors to distortion of original projection images

机译：减少由于重建患者的三维图像数据集而引起的几何偏差的方法，包括通过将几何误差应用于原始投影图像的失真来确定校正的投影图像。

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摘要

The method involves determining displacement information by comparing projection images (3) and comparison images (8) or comparison coordinates for different points for comparison in a spatially-resolved projection surface. Corrected projection images are determined by applying geometric errors describing the displacement information to distortion of the original projection images with respect to a salient structure located in an intermediate image record (6) in a corresponding projection direction. The displacement information is a displacement vector field. The projection images are X-ray projection images. The salient structures are both anatomical markers. An independent claim is also included for an X-ray device.

机译：该方法包括通过比较投影图像（3）和比较图像（8）或不同点的比较坐标以在空间分辨的投影表面中进行比较来确定位移信息。通过相对于位于相应投影方向上位于中间图像记录（6）中的显着结构，将描述位移信息的几何误差应用于原始投影图像的畸变，来确定校正后的投影图像。位移信息是位移矢量场。投影图像是X射线投影图像。突出结构都是解剖标记。 X射线设备也包括独立索赔。

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公开/公告号DE102012211764A1

专利类型
公开/公告日2014-01-09

原文格式PDF
申请/专利权人 SIEMENS AKTIENGESELLSCHAFT;
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申请/专利号DE201210211764
发明设计人 BARTH KARL;
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申请日2012-07-05
分类号G06T5;G06T7/20;G06T11;A61B6/03;
国家 DE
入库时间 2022-08-21 15:37:42

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