Results show that the effect of projection noise on the reconstructed fields is represented by a slope function related to the filter used in deflection tomographic filtered back-projection algorithm.

因此提出了改进的偏折层析滤波反投影算法，数值模拟表明，改进算法在有效抑制倾斜现象的同时，对重建结果不会造成明显的失真。

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Filter back projection (FBP) reconstruction algorithm is adopted by fan beam industrial ct systems.

扇束工业CT系统普遍采用滤波反投影(FBP)重构算法。

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The reconstruction algorithms include back projection algorithm and filter back projection algorithm for inverse problem.

逆问题部分实现反投影算法和滤波反投影算法。

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