发明名称 |
Method and apparatus for reconstructing a three-dimensional image volume from two-dimensional projection images |
摘要 |
The invention relates to a method and an apparatus for reconstructing a three-dimensional image volume from two-dimensional projection images of a subject which have been taken from different projection directions by rotating the recording system around the subject, wherein the grayscale values of the voxels of the image volume are calculated by back projection of the projection images. The invention is characterized in that prior to back projection at least one projection image is modified in such a way that it corresponds to a projection image taken with a virtual detector whose axes are aligned parallel to the rotational axis of the recording system.
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申请公布号 |
US7728834(B2) |
申请公布日期 |
2010.06.01 |
申请号 |
US20060523394 |
申请日期 |
2006.09.19 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT-MUENCHEN |
发明人 |
BRUNNER THOMAS;DEINZER FRANK;FRANKE JUERGEN;HEIGL BENNO;NOETTLING ALOIS |
分类号 |
G06T17/00;A61B6/00 |
主分类号 |
G06T17/00 |
代理机构 |
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