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1. 发明授权

US06625565B1 Method and apparatus for determining an unsupervised planar geodesic path 失效
标题翻译：用于确定无监督平面测地线路径的方法和装置
公开(公告)号：US06625565B1
公开(公告)日：2003-09-23
申请号：US09585004
申请日：2000-06-01
申请人： Abdalmajeid M. Alyassin , Boris Yamrom , James V. Miller
发明人： Abdalmajeid M. Alyassin , Boris Yamrom , James V. Miller
IPC分类号： G01B726
CPC分类号： G06T7/60
摘要： The present invention provides a system and method for performing three-dimensional surface measurements of a path length along a surface. The method for determining the path length along the surface of a three-dimensional object includes the step of first selecting a first and second point on the three-dimensional surface. A plane is then defined which contains both the first and second points. A determination is then made to find the shortest path curve between the first point and second point which is defined by the intersection of the three-dimensional object with the plane. This path length is recorded for future comparison. A series of subsequent planes is defined that contains the first and second point, wherein these planes are rotated at an angle to each other. A determination is then made for the shortest path length associated with each subsequent plane. The overall shortest path length is the minimum of these recorded path lengths.
摘要翻译：本发明提供一种用于对沿着表面的路径长度进行三维表面测量的系统和方法。用于确定沿着三维物体的表面的路径长度的方法包括首先选择三维表面上的第一和第二点的步骤。然后定义一个包含第一和第二点的平面。然后确定在三维物体与平面的交点定义的第一点和第二点之间找到最短路径曲线。记录此路径长度以供将来进行比较。定义了一系列后续平面，其包含第一和第二点，其中这些平面彼此成角度地旋转。然后确定与每个后续平面相关联的最短路径长度。总体最短路径长度是这些记录路径长度的最小值。

2. 发明授权

US07313259B2 Method, system and computer program product for multi-modality registration using virtual cursors 有权
标题翻译：使用虚拟光标进行多模态注册的方法，系统和计算机程序产品
公开(公告)号：US07313259B2
公开(公告)日：2007-12-25
申请号：US10722640
申请日：2003-11-26
申请人： Abdalmajeid M. Alyassin , Ajay Kapur
发明人： Abdalmajeid M. Alyassin , Ajay Kapur
IPC分类号： G06K9/00
CPC分类号： G06T7/38 , A61B8/00 , A61B8/0816 , G06T2207/30068
摘要： A method for multi-modality registration using virtual cursors including receiving a two-dimensional image dataset for an object at a first position and receiving a three-dimensional image dataset for the object at the first position. The three-dimensional image dataset includes a plurality of image slices. The two-dimensional image dataset is registered with the three-dimensional image dataset without taking into account a magnification factor. A user cursor position for a location in the two-dimensional image dataset is received. A slice of interest in the three-dimensional image dataset is received. The slice of interest is selected from the plurality of image slices in the three-dimensional image dataset. A shadow cursor position for a location in the three dimensional dataset is calculated. The shadow cursor position corresponds to the user cursor position and the calculating includes a correction for the magnification factor corresponding to the shadow cursor position for the slice of interest. The shadow cursor position is output.
摘要翻译：一种用于使用虚拟光标进行多模态注册的方法，包括在第一位置接收对象的二维图像数据集，并在第一位置接收对象的三维图像数据集。三维图像数据集包括多个图像切片。二维图像数据集在三维图像数据集中注册，而不考虑放大因子。接收二维图像数据集中位置的用户光标位置。接收三维图像数据集中感兴趣的切片。感兴趣的切片从三维图像数据集中的多个图像切片中选择。计算三维数据集中位置的阴影光标位置。阴影光标位置对应于用户光标位置，并且计算包括对应于感兴趣切片的阴影光标位置的放大系数的校正。输出阴影光标位置。

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