Deformable 2D-3D registration of structure
    51.
    发明授权
    Deformable 2D-3D registration of structure 有权
    可变形2D-3D结构注册

    公开(公告)号:US08494243B2

    公开(公告)日:2013-07-23

    申请号:US12789521

    申请日:2010-05-28

    IPC分类号: G06K9/00

    摘要: A method for performing deformable non-rigid registration of 2D and 3D images of a vascular structure for assistance in surgical intervention includes acquiring 3D image data. An abdominal aorta is segmented from the 3D image data using graph-cut based segmentation to produce a segmentation mask. Centerlines are generated from the segmentation mask using a sequential topological thinning process. 3D graphs are generated from the centerlines. 2D image data is acquired. The 2D image data is segmented to produce a distance map. An energy function is defined based on the 3D graphs and the distance map. The energy function is minimized to perform non-rigid registration between the 3D image data and the 2D image data. The registration may be optimized.

    摘要翻译: 用于执行血管结构的2D和3D图像的可变形非刚性配准以辅助外科手术的方法包括获取3D图像数据。 使用基于图形的分割从3D图像数据分割腹主动脉以产生分割掩模。 使用顺序拓扑稀疏过程从分割掩码生成中心线。 从中心线生成3D图形。 获取2D图像数据。 2D图像数据被分割以产生距离图。 基于3D图和距离图定义能量函数。 能量函数被最小化以在3D图像数据和2D图像数据之间执行非刚性配准。 可以优化注册。

    System and method for robust 2D-3D image registration
    55.
    发明授权
    System and method for robust 2D-3D image registration 有权
    用于强大的2D-3D图像配准的系统和方法

    公开(公告)号:US08457373B2

    公开(公告)日:2013-06-04

    申请号:US12717392

    申请日:2010-03-04

    IPC分类号: G06K9/00

    摘要: A method for registering 2-dimensional (2D) images with 3-dimensional (3D) images includes receiving a 2D reference image and a 3D moving image, initializing a registration parameter matrix that rigidly transforms the domain of the moving image, randomly sampling a set of registration parameter matrices in a neighborhood of the initial registration parameters, estimating a cost function for each of the randomly sampled parameter matrices, calculating a distance from each randomly sampled parameter matrix to the initial registration parameter matrix, calculating a mean shift vector from the estimated cost functions and distance, and updating the initial registration parameter matrix from the mean shift vector.

    摘要翻译: 用3D记录二维(2D)图像的方法包括接收2D参考图像和3D运动图像,初始化刚性地变换运动图像的域的注册参数矩阵,随机抽样一组 估计每个随机采样的参数矩阵的成本函数,计算从每个随机采样的参数矩阵到初始登记参数矩阵的距离,从估计的平均移动向量计算平均移动向量 成本函数和距离,以及从平均移位向量更新初始注册参数矩阵。

    Integration of micro and macro information for biomedical imaging
    57.
    发明授权
    Integration of micro and macro information for biomedical imaging 有权
    微信息与微信息的集成用于生物医学成像

    公开(公告)号:US08386015B2

    公开(公告)日:2013-02-26

    申请号:US12604504

    申请日:2009-10-23

    IPC分类号: A61B5/00

    摘要: Macroscopic imaging data, such as from a CT, MR, PET, or SPECT scanner, is obtained. Microscopic imaging data of at least a portion of the same tissue is obtained. To align the microscopic imaging data with the macroscopic imaging data, intermediate data is also obtained. For example, photographic data is acquired at an intermediary stage of a process of preparing tissue for microscopic scan. The macroscopic and microscopic data are registered to the intermediary photographic data. Once registered to the intermediary data, the spatial relationship between the macroscopic and microscopic data is known and may be used for imaging or quantification.

    摘要翻译: 获得宏观成像数据,例如来自CT,MR,PET或SPECT扫描仪。 得到至少一部分相同组织的显微成像数据。 为了将显微成像数据与宏观成像数据对准,还获得中间数据。 例如,在制备用于显微镜扫描的组织的过程的中间阶段获取摄影数据。 宏观和微观数据被登记到中间摄影数据。 一旦注册到中间数据,宏观和微观数据之间的空间关系是已知的,并且可以用于成像或定量。