通过一致性条件改进分析层析重建
Improving analytical tomographic reconstructions through consistency conditions
摘要：
这项工作介绍了一种快速无参数滤波器的基础上Helgason-Ludwig一致性条件，用于提高分析重建的准确性断层欠采样数据集的特点。过滤器，作用在氡域，推断中间的预测之间的现有的。由此产生的正弦图，加倍的意见，然后重建的标准分析方法。用模拟数据进行的实验证明，如果在重建前使用滤波器，则由滤波反投影计算的结果的峰值信噪比提高达5-6 dB。
英文摘要：
This work introduces and characterizes a fast parameterless filter based on the Helgason-Ludwig consistency conditions, used to improve the accuracy of analytical reconstructions of tomographic undersampled datasets. The filter, acting in the Radon domain, extrapolates intermediate projections between those existing. The resulting sinogram, doubled in views, is then reconstructed by a standard analytical method. Experiments with simulated data prove that the peak-signal-to-noise ratio of the results computed by filtered backprojection is improved up to 5-6 dB, if the filter is used prior to reconstruction.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
