摘要
基于最大熵估计的方法能从不完全和带噪的观测数据对信号进行估计,在许多领域有重要应用。本文比较详尽地讨论了最大熵在用不完全投影数据重建图象中的应用,就其在重建图象的质量以及抗干扰能力等方面的特性作了研究,并给出实验结果。
Image reconstruction from incomplete projections has its wide applicat- ions in many fields. In this paper, the ME algorithms for image reconstruct- ion from three typical incomplete data are studied extensively. In comparison with the ordinary algorithm, the ME algorithm is superior in many aspects
出处
《武汉大学学报（自然科学版）》
CSCD
1992年第3期48-54,共7页
Journal of Wuhan University(Natural Science Edition)
关键词
不完全投影
最大熵
图象重建
incomplete projections
filter-backprojection
robust
maximum entropy
