A Regularized Iterative Algorithm for Limited-angle Inverse Radon Transform
作者:
M. Defrise,
C. de Mol,
期刊:
Optica Acta: International Journal of Optics
(Taylor Available online 1983)
卷期:
Volume 30,
issue 4
页码: 403-408
ISSN:0030-3909
年代: 1983
DOI:10.1080/713821211
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The tomography problem is investigated when the available projections are restricted to a limited angular domain. It is shown that a previous algorithm proposed for extrapolating the data to the missing cone in Fourier space is unstable in the presence of noise because of the ill-posedness of the problem. A regularized algorithm is proposed, which converges to stable solutions. The efficiency of both algorithms is tested by means of numerical simulations.
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