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IEICE TRANSACTIONS on Fundamentals

An Adaptive Backpropagation Algorithm for Limited-Angle CT Image Reconstruction

Fath El Alem F. ALI, Zensho NAKAO, Yen-Wei CHEN, Kazunori MATSUO, Izuru OHKAWA

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Summary :

Presented in this paper is a neural back propagation algorithm for reconstructing two-dimensional CT images from a small number of projection data. The paper extends the work in [1], in which a backpropagation algorithm is applied to the CT image reconstruction problem. The delta rule of the ordinary backpropagation algorithm is modified using a 'secondary' teaching signal and the 'Resilient backpropagation' scheme. Results obtained are presented along with those of two well known conventional methods: MART and EMML method. A quantitative evaluation reveals the effectiveness of the proposed algorithm.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E83-A No.6 pp.1049-1058
Publication Date
2000/06/25
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Type of Manuscript
Special Section PAPER (Special Section of Papers Selected from 1999 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC'99))
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