【摘要】 主要介绍代数迭代法在傅里叶变换计算层析成像光谱仪数据处理中的应用。根据4种不同投影数进行了光谱切片重建,并对光谱相似性进行了比较。针对ART算法可应用少数投影重建的特点,专门在45个投影数时,采用不同迭代系数进行了重建,并进行了比较。最后,对实际场景进行了光谱切片重建。更多还原

【Abstract】 In the present paper,the authors will introduce our research on spectral reconstruction of Fourier transform computed tomography imaging spectrometer by means of the algebraic reconstruction technology.A simulation experiment was carried out to demonstrate the algorithm.The spatial similarities and spectral similarities were evaluated using the normalized correlation coefficient.The performance of ART was evaluated when the quantity of projection is 45.In that case,filter back projection can’t work well.Actual spectral slices were reconstructed by using ART in the last part of this paper.更多还原