摘要
在断层成像的实际应用中,CT图像重建常用于重建欠采样及不完全数据的投影.在此,主要从不完全投影进行考虑:用线性插值法对不完全投影数据进行估计补全,再运用ART算法对补全后的投影图像进行重建.仿真实验表明,在投影数据缺失较少时,这种思路是可行的,且得到的重建效果也较好.
CT image reconstruction always used by undersampled reconstruction and incomplete projection in the practical application of tomography. This paper mainly considere of incomplete projection, estimated the incomplete datas complete by linear interpolation method, and then reconstructed the complete image by ART algorithm. Simulation experiment show that this idea is feasible and the reconstruct effect is batter when the projection datas delete few.
出处
《数学的实践与认识》
CSCD
北大核心
2013年第24期80-84,共5页
Mathematics in Practice and Theory
基金
山西省自然基金(2010011002-1
2012021011-2)
关键词
不完全数据
线性插值
ART重建算法
incomplete data
linear interpolation
ART reconstruction algorithm
