Feasibility of tomography with unknown view angles
Feasibility of tomography with unknown view angles
复制标题
未知视角断层扫描的可行性
DOI：
10.1109/icip.1998.723308
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
Y. Bresler
中科院分区：
文献类型：
--
作者：
S. Basu;Y. Bresler
作者最近证明，断层投影的视角是唯一确定的投影数据单独为几乎所有的对象，给予足够的投影。在这里，他们提出了解决方案的稳定性的结果，以及基于卷积反投影（CBP）的重建的方差的界限。为了证明这个问题可以在存在噪声的情况下可行地解决，作者提出了一个最大似然估计与启发式初始化算法，估计每个投影的方向。
The authors recently demonstrated that the view angles of tomographic projections were uniquely determined by the projection data alone for almost all objects, given enough projections. Here, they present results on the stability of the solution, as well as bounds on the variance of Convolution Back Projection (CBP) based reconstructions. To demonstrate that the problem can be feasibly solved in the presence of noise, the authors present a maximum likelihood estimator with a heuristic initialization algorithm which estimates the orientation of each projection.