层析成像中伪影表征的范例
A paradigm for the characterization of artifacts in tomography
摘要:
我们提出了一个范例,在有限的数据断层扫描问题的工件表征。特别是,我们使用这种范式来表征从有限的角度数据与广义Radon变换和一般过滤反投影型算子重建中产生的文物。为了找到可见的奇点时,成像,我们计算我们的重建算子作为一个伪微分算子的符号。
英文摘要:
We present a paradigm for characterization of artifacts in limited data tomography problems. In particular, we use this paradigm to characterize artifacts that are generated in reconstructions from limited angle data with generalized Radon transforms and general filtered backprojection type operators. In order to find when visible singularities are imaged, we calculate the symbol of our reconstruction operator as a pseudodifferential operator.
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