公开(公告)号：US5946425A

公开(公告)日：1999-08-31

申请号：US657324

申请日：1996-06-03

申请人： V. Michael Bove, Jr. ,  Tamas Sandor

发明人： V. Michael Bove, Jr. ,  Tamas Sandor

IPC分类号： G06T7/00 ,  G06K9/36

CPC分类号： G06T7/0026 ,  G06T7/0038 ,  G06T2200/04 ,  G06T2207/10072 ,  G06T2207/20016 ,  G06T2207/20021

摘要： Different tomographic images of the same subject matter are optimally related to one another through a two-step procedure whereby, first, movements are plotted on a subregion level, producing a vector map relating subregions in a first set of scan frames to subregions in another set of scan frames; and then, based on the aggregate of subregion movements, the invention characterizes the "global" displacement relating the volume represented by the first set of scan frames to that represented by the second set. More specifically, the invention generates translation and rotation vectors that describe the movements underlying shifts in subject matter from one scan to the other, and which can be applied to one frame set to align it with the other.

摘要翻译： 相同主题的不同断层图像通过两步过程最佳地彼此相关，由此首先，将运动绘制在子区域级上，产生将第一组扫描帧中的子区域与另一组中的子区域相关联的向量图 的扫描帧; 然后，基于子区域移动的总和，本发明描述了将由第一组扫描帧表示的体积与由第二组所表示的体积相关联的“全局”位移。 更具体地说，本发明产生描述主题内从一次扫描到另一扫描的移动的移动和旋转向量，并且可以将其应用于一个框架以使其与另一个对齐。