Image Reconstruction Based on TV Minimization and OS-EM Method in Linear Scan CT

Bin Yan; Ai Long Cai; Feng Wei; Lei Li; Xiao Qi Xi

doi:10.4028/www.scientific.net/AMR.684.402

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 684Image Reconstruction Based on TV Minimization and...

Image Reconstruction Based on TV Minimization and OS-EM Method in Linear Scan CT

Abstract:

A straight-line trajectory computed tomography (CT) has been investigated in this paper and a high accuracy reconstruction algorithm based on TV minimization and OS-EM method has been put forward. This new algorithm, which is called TV-OS-EM, takes the advantage of both statistic iterative algorithm OS-EM and the total variation minimization technique, and has an efficient property of de-noising and restoration. The numerical experimental results show that the new method can achieve a remarkable improvement in image quality.

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Periodical:

Advanced Materials Research (Volume 684)

Pages:

402-405

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.684.402

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Online since:

April 2013

Authors:

Bin Yan, Ai Long Cai, Feng Wei, Lei Li, Xiao Qi Xi

Keywords:

Image Reconstruction, Linear Scan CT, Ordered Subsets Expectation Maximum, Total Variation Minimization

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