Exact interior reconstruction with cone-beam CT.
Exact interior reconstruction with cone-beam CT.
复制标题
具有锥束CT的精确内部重建。
DOI：
10.1155/2007/10693
复制
发表时间：
2007
影响因子：
7.6
通讯作者：
Wang, Ge
中科院分区：
文献类型：
--
作者：
Ye, Yangbo;Yu, Hengyong;Wang, Ge
Using the backprojection filtration (BPF) and filtered backprojection (FBP) approaches, respectively, we prove that with cone-beam CT the interior problem can be exactly solved by analytic continuation. The prior knowledge we assume is that a volume of interest (VOI) in an object to be reconstructed is known in a subregion of the VOI. Our derivations are based on the so-called generalized PI-segment (chord). The available projection onto convex set (POCS) algorithm and singular value decomposition (SVD) method can be applied to perform the exact interior reconstruction. These results have many implications in the CT field and can be extended to other tomographic modalities, such as SPECT/PET, MRI.
