摘要
本文论述了频谱分析重建算法的基本原理,同时从联合代数重建算法出发,推导出频谱分析重建算法的计算公式,证明了两种算法的等价性;模拟运算亦表明,新算法是可靠的.文章分析了两者的特点,并指出了它们的适用范围.
The principle of frequency spectrum approach reconstruction technique (FSAR.T) is presented. Its formula has been also derived from simultaneous algebraic reconstruction technique (SART). This indicates the equivalence of two algorithms. Numerical simulations are made. The results show that the new algorithm is reliable. Their characteristics are discussed, and their application fields are pointed out.
出处
《量子电子学报》
CAS
CSCD
北大核心
2002年第6期491-495,共5页
Chinese Journal of Quantum Electronics
基金
国家自然科学基金(69878007)资助项目.
关键词
频谱分析
重建法
联合代数重建法
傅里叶变换
光学CT技术
计算机断层扫描
Fourier transformation
frequency spectrum approach reconstruction technique (FSART)
simultaneous algebraic reconstruction technique (SART)
