The projection data were all processed by thejnethod of filter back projection, and the images were reconstructed to short axis, vertical long axis and horizontal tomography.
图像重建均采用滤波反投影，重建成短轴、水平长轴、垂直长轴断层图像，并且在短轴图像基础上制成靶心图。
参考来源 - 心肌灌注断层显像左室下后壁衰减伪影鉴别的定量分析研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
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。
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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