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An Improved Ordered Subsets Expectation Maximization Reconstruction

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Advances in Natural Computation (ICNC 2006)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 4221))

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Abstract

Positron emission computerized tomography (PET) based on Ordered Subsets Expectation Maximization (OS-EM) is usually used to computerized tomography, which imposes the radionuclide to emission positron. But it also has some disadvantage as costing long time and bad reconstruction quality. Filtered Back Projection (FBP) that has many advantages such as simple structure and short reconstruction time is firstly introduced to the initialization stage to accelerate reconstruction. Then, the smoothness method is introduced to improve the reconstruction quality after OS-EM algorithm. The results show that this method has the advantages of fast reconstruction speed and good quality.

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Authors and Affiliations

  1. School of Life Science and Technology, University of Electronic Science and Technology of China, 610054, China

    Xu Lei, Huafu Chen, Dezhong Yao & Guanhua Luo

  2. School of Applied Mathematics, University of Electronic Science and Technology of China, 610054, China

    Huafu Chen

Authors
  1. Xu Lei
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  2. Huafu Chen
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  3. Dezhong Yao
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  4. Guanhua Luo
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Editor information

Editors and Affiliations

  1. Life Science Research Center, School of Electronic Engineering, Xidian University, 710071, Xi’an, Shaanxi, China

    Licheng Jiao

  2. School of Electrical and Electronic Engineering, Nanyang Technological University, Block S1, Nanyang Avenue, 639798, Singapore

    Lipo Wang

  3. School of Electronic Engineering, Xidian Univ., 710071, Xi’an, P.R. China

    Xin-bo Gao

  4. College of Mathematics and Information Science, Hebei Normal University, 050016, Shijiazhuang, Hebei, P.R. China

    Jing Liu

  5. Multi-Agent Systems Lab,Department of Computer Science, University of Science and Technology of China, 230026, Hefei, China

    Feng Wu

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© 2006 Springer-Verlag Berlin Heidelberg

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Lei, X., Chen, H., Yao, D., Luo, G. (2006). An Improved Ordered Subsets Expectation Maximization Reconstruction. In: Jiao, L., Wang, L., Gao, Xb., Liu, J., Wu, F. (eds) Advances in Natural Computation. ICNC 2006. Lecture Notes in Computer Science, vol 4221. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11881070_127

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  • DOI: https://doi.org/10.1007/11881070_127

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-45901-9

  • Online ISBN: 978-3-540-45902-6

  • eBook Packages: Computer ScienceComputer Science (R0)

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