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《Computerized Tomography Theory and Applications》 2007-02
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Symmetric Mesh-Iterative Algorithms for Image Reconstruction

QIU Jun~(1,2) WANG Liang~3 1.Research Division of Applied Mathematics,Beijing Information Technology Institute,Beijing 100101,China 2.School of Mathematical Sciences,Graduate Univerity of Chinese Academy of Sciences,Beijing 100039,China 3.Department of Computer Science, Inner Mongolia University of Technology,Huhhot 010051,China  
This paper provides the improved iterative algorithms as commonly applied in Industrial Computerized Tomography (ICT).The symmetric mesh-iterative reconstruction technique (SM-IRT) is introduced based on the existing symmetric structure of projection lines so as to better solve the image reconstruction problems.This method proposes simplified computation of projection matrix and effectively adjusts the successive line iterative sequences.The experimental image reconstruction utilizing both simulated data and ICT experimental data is undertaken.The results show that the image reconstruction adopting the presented algorithms is much faster and takes on better precision than other conventional algorithms.
【Fund】: 国家自然科学基金(60572103)。
【CateGory Index】: TP391.41
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