首页> 外国专利> METHOD FOR DEFORMABLE 3D-2D REGISTRATION USING MULTIPLE LOCALLY RIGID REGISTRATIONS

METHOD FOR DEFORMABLE 3D-2D REGISTRATION USING MULTIPLE LOCALLY RIGID REGISTRATIONS

机译:多局域刚性注册的可变形3D-2D配准方法

摘要

An embodiment in accordance with the present invention provides a method for 3D-2D registration (for example, registration of a 3D CT image to a 2D radiograph) that permits deformable motion between structures defined in the 3D image based on a series of locally rigid transformations. This invention utilizes predefined annotations in 3D images (e.g., the location of anatomical features of interest) to perform multiple locally rigid registrations that yield improved accuracy in aligning structures that have undergone deformation between the acquisition of the 3D and 2D images (e.g., a preoperative CT compared to an intraoperative radiograph). The 3D image is divided into subregions that are masked according to the annotations, and the registration is computed simultaneously for each divided region by incorporating a volumetric masking method within the 3D-2D registration process.
机译:根据本发明的实施例提供了一种用于3D-2D配准(例如,将3D CT图像配准到2D射线照相)的方法,该方法允许基于一系列局部刚性变换而在3D图像中定义的结构之间进行变形运动。 。本发明利用3D图像中的预定义注释(例如,感兴趣的解剖特征的位置)来执行多个局部刚性配准,从而在对准在3D图像和2D图像的采集之间经历了变形的结构(例如,术前)中产生提高的准确性。 CT与术中X光片相比)。将3D图像划分为根据注释进行掩盖的子区域,并通过在3D-2D配准过程中合并体积掩蔽方法,针对每个划分的区域同时计算配准。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号